Oct 22, 2023 · If you’re short on time, here’s a quick answer: The most common reasons a tankless water heater shuts off are sediment buildup in the heat exchanger, insufficient gas flow, failed thermal sensors, or faulty electronics. Fixing the issue requires flushing heat exchanger coils, adjusting gas pressure, replacing sensors, or resetting control ...To fix your heater shutting off issue, check the solution guidelines in the heater keeps turning off section in the article. Hopefully, your problem will be solved. Wish you all the best! Reply. jack graham. December 3, 2022 at 11:06 pmA failed flammable vapor ignition resistant system can prevent combustion air from reaching the heater which could put out the pilot when the burner kicks on. If you are having problems with your hot water heater, call us today at 770-505-8570. Tips on identifying 9 reasons why your gas hot water heater unit may keep shutting off.There are a few reasons your Mr. Heater might be making a whistling noise. It could be that the connections are loose, the unit is dirty, or there is something blocking the airflow. If you have ruled out those possibilities, it could be that the unit is low on propane. If your Mr. Heater is making a whistling noise, it could be due to a few ...Replacing a water heater igniter depends on the type of igniter used, but most systems are sold as self-contained units. Once the old igniter is detached and its gas connection is ...The heater’s automatic shut-off feature is designed to turn off the heater if it’s tipped over. If the heater is on an uneven surface, it may trigger the shut-off feature even if it hasn’t tipped over. The Heater Keeps Turning Off. If the heater keeps turning off, it may be due to a malfunctioning oxygen depletion sensor (ODS).The most common reason for a portable gas heater to keep going out is a lack of oxygen. Make sure the area where you are using the heater is well ventilated to prevent this issue. 2. Another possible cause for the heater going out is a dirty or clogged burner. Regularly clean and maintain the burner to ensure proper functioning.My Mr buddy heater pilot light lights but once I turn the heat setting to low it goes out. ... I have a mr. heater big buddy that keeps shutting off after a few minutes of use. It lights and heats up and seems to work just fine but it only lasts for about 5 minutes before it shuts down and I ha ...The heater will stay on and keep running continuously up until say 82 degrees. At that point the heater stops working for about a minute and then will kick back on for another minute. This goes on and on until the heater finally meets it's set temperature. It seems that the warmer the water becomes, the more frequently the heater kicks off ...The thermocouple is the copper rod the pilot flame directly hits. Sometimes it's referred to as the "flame sensor." It's a safety mechanism that shuts the gas off should the pilot go out. If the thermocouple fails to shut off the gas, all the gas flowing through the furnace could get into your home.Step 8 - A Failed Control Board. Like almost all new appliances, newer torpedo heaters have a control board that monitors all these systems for correct operation. The control board is essentially a computer. This computer's sole function is to continually look for a reason to shut down the torpedo heater.Why does the pilot not stay lit so the Mr buddy heater will stay lit ... my Mr heater big max keeps blowing the 3amp control fuse when I put power on it ... My oil heater shuts off after a few minutes, and the little button pops up. I wait a few minutes, press the button, and it starts right away. ...Your hot water heater may trip the breaker due to electrical issues, a faulty thermostat, or a short circuit. Overloading can happen when the water heater draws more electricity than the circuit can handle. Faulty elements can also cause overheating, which trips the breaker. Regular maintenance helps avoid these issues.So now our heater is running constantly rather than shutting off occasionally like it normally does. It's blowing lukewarm air instead of hot air. I tried resetting the system outside. It runs for a while, but the high-pressure warning goes off after about an hour. Is this problem solvable on my own, or do I need to call in a repair man to have ...Here are some common reasons that portable electric heaters shut off: The thermostat on the heater is not set high enough. The heater needs to be reset due to an overheat situation. Consult your owners manual for additional details. If the unit has tip-over safety protection: To reset, simply place the heater in an upright position on a level ...Mar 23, 2022 · Step 3: First remove the clamp and then pull the line from the filter. Unthread the fuel filter from the tank. Step 4: Install the new fuel filter. Carefully insert it into the tank making sure to not cut the filter. Align the tabs with the slots in the tank and then rotate the filter into place to secure it.Here are a few possible reasons why your gas water heater keeps turning off. 1. Gas Supply. Gas water heaters need to have a flow of gas to the pilot light in order to remain working. If the gas supply is blocked, or if the amount of gas isn't sufficient, the pilot light won't stay lit. Make sure the line valves are open .Loose Wall Outlet. Loose contact with the wall outlet can cause the heater to shut down. This is a very common problem and can easily be fixed and tested. Solution. Plug in your space heater in another wall outlet. Check if it shuts down or not. If it doesn't, then the problem is surely in your wall outlet.Provided that your infrared heater keeps shutting off, there’s a good chance that your filter needs to be replaced or cleaned. Solution: Let your heater cool down and then proceed to remove the filter carefully. Wash it with dish soap under running water and let it dry completely. Once you have done that, vacuum off any remaining debris from ...Usually replacing parts to find the problem gets expensive fast. Should try to find out why the pilot keeps going out, might just be windy. Have a propane furnace/heater with though the wall vent, the wind hits the vent just right and blows out the pilot. -When used correctly a buddy heater can be used to warm a tent. But there are some serious risks to operating a propane buddy heater in your tent. It’s import to have proper ventilation, a stable base, and to keep the heater away from flammable material. A buddy heater should not be used while sleeping. When used improperly there are some ...1. Insufficient water flow through the heater, which can be caused by clogged filters or a malfunctioning circulation pump. 2. Low water level in the hot tub, which can cause the heater to overheat and shut off. 3. Malfunctioning thermostat or temperature sensors. 4. Faulty heating element in the heater. 5. Power supply issues or electrical ...Why does the pilot not stay lit so the Mr buddy heater will stay lit ... my Mr heater big max keeps blowing the 3amp control fuse when I put power on it ... My oil heater shuts off after a few minutes, and the little button pops up. I wait a few minutes, press the button, and it starts right away. ...I got a big buddy heater and 2 20lb tanks I use to heat my roughly 600ft2 place. Works great I use it everyday in the winter. I use high to heat the place up then low will keep it warm. I turn it on and off as needed. It's good to shut it off for a bit and open a window for a couple seconds to get some more o2 in.There are a few possible reasons why you might have to keep restarting your hot water heater. One possibility is that the thermostat is set too low. If the thermostat is set too low, it will cause the burner to turn off before the water is heated to the desired temperature. Another possibility is that there is a build-up of sediment in the tank.Here are a few common Raypak troubleshooting codes and what they mean. Use these to troubleshoot your Raypak pool heater: LP & LP3. Low refrigerant if one "LP". If "LP3", likely a low-pressure issue. HP & HP6. Low water flow. Faulty high-pressure switch (shuts down to protect unit) FLo & FL3.Once you have rectified this issue, you need to ensure that the flame covers at least half of the sensor. This will aid it in detecting the flame and then it should remain lit without any further assistance. If this doesn’t work, it may be that you need to actually have the sensor replaced. 2. Dirt in your pilot tube.A malfunctioning thermocouple may fail to accurately detect the pilot light, causing the heater to shut down. Regularly inspect the thermocouple, ensuring it is securely in place, and consider replacing it if any damage is evident. Ventilation Considerations: Insufficient airflow around your Procom heater can lead to frequent shutdowns.In today’s digital age, computers have become an integral part of our daily lives. From work to entertainment, we rely heavily on these devices to carry out various tasks. However,...The all new 2020 next gen Buddy FLEX® and FLEX Accessories have been redesigned with all the features and safety you love, and the added capabilities and innovation you've come to expect from Mr. Heater! Indoor safe radiant propane heater emits 8,000-11,000 BTU. Equipped with safety shut-down systems for protection.May 30, 2023 · Outdoor AC unit keeps turning on and off. Adjusting the thermostat settings. Clean the coils and filters. Clean the drain line. Visually check for reverse rotation of the outdoor fan. Outdoor AC unit keeps turning on and off – additional troubleshooting steps. The evaporator’s thermistor might be faulty – so, test it.If your flue pipe or exhaust system becomes clogged with leaves, rodents, sticks, or nests, this can cause the gas from your furnace to become trapped. Once the gas starts to build up, this may cause your heater to overheat and turn off early. If your furnace keeps shutting off after a couple of minutes, it may be necessary to work with a ...It will turn on and blow heat for maybe 5 seconds and then all heat and air flow for that matter will stop at the head. Power stays on, just zero air comes out and shortly after the fan stops spinning at the heat pump. I did some googling and poked around for a bit. Control wires are hooked up correctly.The most common reasons behind your Mr buddy heater keeps shutting off are: The dirty pilot or thermocouple. Wrong draft positioning. Malfunctioning gas valve. The clogged pilot orifice. And the faulty flame sensor or electronic spark mechanism. However, below you will get the easiest and most effective solution to each of these problems. You willAn overheating AC unit can also cause it to turn off unexpectedly. When the system becomes too hot, a safety feature kicks in and shuts down the unit to prevent damage. Overheating can occur for various reasons, including dirty or clogged air filters, blocked condenser coils, malfunctioning fans, or refrigerant leaks.Why does my gas wall heater keep shutting off? Understanding why your gas wall heater keeps shutting on or off is essential, as it helps you take quick action to avoid major repairs or the need for a new system. Acting promptly with this knowledge ensures your furnace works well, keeps your home comfortable, and saves money in the long run. ...Why Does Gas Heater Keep Turning Off? Gas heaters are a common sight in many homes, providing warmth during the winter months. However, sometimes gas heaters can malfunction, and one of the most common problems is when the heater keeps turning off. There are several reasons why a gas heater might keep turning off.The most common reason for a portable gas heater to keep going out is a lack of oxygen. Make sure the area where you are using the heater is well ventilated to prevent this issue. 2. Another possible cause for the heater going out is a dirty or clogged burner. Regularly clean and maintain the burner to ensure proper functioning.Step 1: Turn your RV water heater off. Your water heater runs off the 120-volt AC power when you are connected to an electrical hookup. When water is heated with propane, an igniter lights the propane. This igniter also runs on the 12-volt DC electrical system. Just flip the RV water heater breaker switch to "Off" so you can troubleshoot ...Oct 30, 2019 · If you are having an issue with your heater starting but will automatically shut off after 10-20 minutes this is what you should be checking.Solution: The only solution for a faulty thermistor is to replace it with a new one. Follow these steps to replace the thermistor: Shut down your heater and make sure the power connections are off. Unscrew the drain plugs and drain water from the heater. Take out the front access panel by unscrewing the 4 bolts.turn off the heater if not enough fresh air is available. WARNING: DO NOT TAMPER WITH THE SAFETY SYSTEM! If heater shuts off, do not relight until you provide fresh air. If heater keeps shutting off, have the heater serviced. Keep burner and control compartment clean. WARNINGS Caution: • When operating the heater at altitudes over 7,000 FT aboveConclusion. To summarize, your propane heater is shutting off for one of three possible reasons. Firstly, the fuel supply may be insufficient to allow it to function properly. Secondly, there may be an obstruction or buildup of dirt preventing it from performing its function accurately. Thirdly, there may be a malfunction or damage to one of ...The possible causes of an open high-limit switch are a malfunctioning control board, a bad blower motor, or a broken high-limit switch. In case, the rollout switch is open, you may have low manifold pressure or a bad rollout switch. Keep reading our Mr heater big Maxx 4 flashes guide to getting your heater running ASAP.May 26, 2021 · Step 8 – A Failed Control Board. Like almost all new appliances, newer torpedo heaters have a control board that monitors all these systems for correct operation. The control board is essentially a computer. This computer’s sole function is to continually look for a reason to shut down the torpedo heater.The Filter Is Clogged. 2. Too Many Vents are Blocked. 3. There’s A Thermostat Problem. 4. Your Heater Is Too Big For The House. No matter the cause for short-cycling, you need to get it addressed as soon as possible. A furnace that keeps turning on and off can end up with a cracked heat exchanger.Outdoor AC unit keeps turning on and off. Adjusting the thermostat settings. Clean the coils and filters. Clean the drain line. Visually check for reverse rotation of the outdoor fan. Outdoor AC unit keeps turning on and off – additional troubleshooting steps. The evaporator’s thermistor might be faulty – so, test it.Watch on. To get your water detector to stop beeping, there are a few steps you can take. First, check to make sure the device is secure and all fittings are tight. It may be that the dishwasher or washing machine is making the alarm go off due to the water pressure. Then, check the batteries and replace if necessary.1. Empty Propane Tank. 2. Too Low Gas Pressure. 3. Blocked Pilot Tube. How To Clean MR Heater Pilot Tube. 4. Clogged Gas Regulator. 5. Clogged Gas …A dirty air filter reduces the amount of cold air your furnace pulls in to push over the heat exchanger. Furnaces need cold air for the heat exchanger to heat up. If there isn't enough coming in, the system will shut itself off as a safety measure. Once the internal temperature within your furnace stabilizes, it will kick back on again.1. Turn off the propane tank and the heater, and disconnect the propane tank from the heater. Remove the control panel to access the thermocouple. 2. Gently remove any dirt and debris from around the end of the thermocouple. 3. Use a cotton swab or fine wire brush to gently clean the thermocouple’s end.altitudes, the heater may shut-off. If this happens, provide fresh air, wait 5 minutes and re-light. If the heater continues to shut off, there may not be enough oxygen available to feed proper combustion. • Operating time will be approximately 5 1/2 hours on a one 1lb. cylinder. Due to the properties of LP gas, runtimes can be significantly ...The flame will surround the thermocouple just below the tip, see Figure 2. Mr. Heater MH4GC Golf Cart Heater Operating Instructions and OwnerÊs Manual 2015 CB... Page 5: Troubleshooting Information If Heater keeps shutting "OFF" during normal operation. CHECK • Pilot is blocked - clean pilot, see MAINTENANCE.Step 8 - A Failed Control Board. Like almost all new appliances, newer torpedo heaters have a control board that monitors all these systems for correct operation. The control board is essentially a computer. This computer's sole function is to continually look for a reason to shut down the torpedo heater.When your Rinnai heater keeps shutting off, you should check its gas supply, thermocouple, pilot, gas line, condensate drain line, and water leak sensor. The size of the heater can also be an issue. Follow these steps to solve the problem: Turn on the gas valve or replace the propane tank to ensure an adequate gas supply.Gas Water Heater Keeps Turning Off. Gas water heaters may turn off due to a problem with their pilot light, thermocouple or gas supply. 1. Pilot Light Burner. When a gas water heater's pilot light goes out, it'll shut down. You can check to see if your pilot light is still lit by opening up its compartment. If it has gone out, the most ...Why Does My Mr Heater Big Buddy Keeps Shutting Off. Web your heater can malfunction because of a clogged air filter, cool down face is running, loose or incorrect wiring, broken temperature gauge, broken blower switch,. ... Web #1 · feb 14, 2011 i've been using this thing for several winters. Heater buddy may keep turning off due to a ...Why does my heater keep turning off? Common reasons. Now that we understand the impact of short cycling, let's explore the most common causes behind this phenomenon. Dirty or clogged filters; A dirty or blocked air filter is one of the most common causes of short cycling. When the filter is clogged, air cannot flow freely through the system ...These patented radiant propane heaters connect directly to a 1 lb. cylinder or may be connected to a larger fuel source via a hose. The expertly engineered size to BTU ratio is designed to give this heater family maximum output while retaining a minimalistic footprint. With the Oxygen Depletion Sensor (ODS) and accidental tip-over safety shut ...Conclusion. To summarize, your propane heater is shutting off for one of three possible reasons. Firstly, the fuel supply may be insufficient to allow it to function properly. Secondly, there may be an obstruction or buildup of dirt preventing it from performing its function accurately. Thirdly, there may be a malfunction or damage to one of ...Why does my buddy heater keep shutting off? If the thermocouple is too far from the flame, this can cause the pilot to go out and shut down the propane heater; you can fix this easily by moving the thermocouple closer to the flame. The thermocouple could also be worn out, in which case it needs to be replaced. ...Nov 2, 2022 ... big buddy heater apart and found the fuel lines full of oil. clogged fuel lines . major deal but glad i did it. Great deals shopping Amazon ...When the water temperature inside the tank exceeds a certain threshold, the thermostat will automatically shut off the heater to prevent damage. If the water flow through the heater is too low, the water may not be able to absorb the heat efficiently, causing the heater to overheat.Nov 30, 2021 · Step 4: If the heater won’t start and produces smoke or odors, replace the fuel filter. Blow-dry the filter and reinstall it to see if the problem has been resolved. Step 5: If you suspect a blockage in the fuel nozzle, insert a piece of wire and press down on it using compressed air until any obstruction is removed.Faulty Heating Element: A malfunctioning or damaged heating element can cause the water heater to shut off unexpectedly. Over time, these elements may wear out, corrode, or develop electrical issues. If you notice inconsistent water heating or abrupt shutdowns, it is advisable to inspect and, if necessary, replace the heating element.When your wall heater frequently shuts off, low airflow might be the culprit. Begin troubleshooting by regularly checking and replacing dirty air filters. Ensure the blower wheel is clean and unobstructed. Also inspect all air supply vents to guarantee open and unblocked passages for proper heat exchange.Common problems with Mr. Heater Big Buddy heaters include clogged regulator and control valves, noisy and weak fans, leaking hoses and fuel inefficiency, states TacticalIntelligence.net. The heaters can also not be repaired once damaged. When using the Big Buddy Heater with the 20-pound tank, the regulator and control valve can get clogged by ...This can block the unit's spark plugs or even damage the wiring of the power switch if it goes into the tank filtration. 2. Torpedo Heater Keeps Shutting Off. There are three major reasons why your torpedo heater keeps shutting off; a bad rotor, leaks, and improper pressure settings.Faulty thermostats may shut the heater off too soon or at the wrong temperature. A faulty thermostat can also be the reason why your heater keeps turning off. If the thermostat is malfunctioning, it may shut the heater off too soon or at the wrong temperature. This can be frustrating as it prevents your room from reaching the desired warmth.Below are reasons why the heater keeps turning off and on: 1. Blocked impeller. Sometimes debris from water deposits itself on the impellor, causing a blockage. When the impeller is blocked, its fun can't rotate to pull water from the filter. Pool heaters must have water for heating, and when there's no water supply, the heater will turn off.The most common reason for a portable gas heater to keep going out is a lack of oxygen. Make sure the area where you are using the heater is well ventilated to prevent this issue. 2. Another possible cause for the heater going out is a dirty or clogged burner. Regularly clean and maintain the burner to ensure proper functioning.If the heating element breaks or burns out, this can cause a spit in parts of the heater, exposing wires and electrical components to direct contact with water. And we all know water plus electricity equals bad. In this case, it can short circuit and cause the water heater to trip your circuit breaker. Just as well, with a broken heating ...1. Remove Dust to Prevent Overheating. Over time, your Lasko heater accumulates dust. The dust inside the heater prevents air circulation, which prevents your heater from blowing out the hot air. Additionally, the dust covers the ceramic heating element and insulates it, which causes it to get way too hot. In most cases, the overheating that ...The most common reasons behind your Mr buddy heater keeps shutting off are: The dirty pilot or thermocouple. Wrong draft positioning. Malfunctioning gas valve. The clogged pilot orifice. And the faulty flame sensor or electronic spark mechanism. However, below you will get the easiest and most effective solution to each of these problems. You willOne of the most common reasons for pool heater shutdowns is low water flow. This can be caused by a variety of issues, including a clogged or dirty filter, pump problems, or inadequate water levels. When the water flow is restricted, the heater may overheat, leading to a shutdown. To address low water flow issues, start by checking …The gas wall heater keeps shutting off. The gas wall heater won't turn on. The Wall heater pilot won't light. Wall heater thermostat not working. The gas heater keeps going out. Wall heater gas control valve problems. Carbon monoxide and moisture issues. Inefficiency if it's unvented. Risk of fire.The Filter Is Clogged. 2. Too Many Vents are Blocked. 3. There’s A Thermostat Problem. 4. Your Heater Is Too Big For The House. No matter the cause for short-cycling, you need to get it addressed as soon as possible. A furnace that keeps turning on and off can end up with a cracked heat exchanger.Propane Heater Fumes. A few months ago I bought a Mr Heater Big Buddy propane heater, along with a new tank of propane, a filter, and a hose. I set up everything per the manual, but every time I run the heater, my garage is full of what has to be toxic fumes within minutes. I made sure to keep my propane tank outside, so it can't be that.The heater’s automatic shut-off feature is designed to turn off the heater if it’s tipped over. If the heater is on an uneven surface, it may trigger the shut-off feature even if it hasn’t tipped over. The Heater Keeps Turning Off. If the heater keeps turning off, it may be due to a malfunctioning oxygen depletion sensor (ODS).Clicking noise. Clicking noises in a space heater are usually safe and expected. Clicking noise sound recording: Explanation: When a space heater heats up, its surface material expands, which builds up tension. When that tension releases, a clicking sound occurs. My infrared heater always makes a clicking sound after 10 - 15 minutes of heating.I have a mr. heater big buddy that keeps shutting off after a few minutes of use. It lights and heats up and seems to work just fine but it only lasts for about 5 minutes before it shuts down and I have to restart it.Step 1: First, turn off your heater's gas supply for safety purposes. Also, ensure that there is no gas leakage in it. Step 2: Now unscrew your heater's thermocouple using a screwdriver. Then also, unscrew the main burner and pilot light. Afterward, remove the heater's burner assembly by unscrewing its front cover.The major Dewalt propane heater problems are the heater won't stay lit or won't start at all, the heater fan not working, the heater keeps shutting off, overheating issues, and extremely hot enclosure. Find out your pain point & go through this Dewalt propane heater troubleshooting guide. You'll certainly find the solution you're looking for.Usually replacing parts to find the problem gets expensive fast. Should try to find out why the pilot keeps going out, might just be windy. Have a propane furnace/heater with though the wall vent, the wind hits the vent just right and blows out the pilot. -If the sensor does not detect a flame, it will shut off the furnace’s gas supply to prevent accidents. This issue could be a bad or dirty flame sensor. This could be a faulty flame sensor if you have propane and a flame. Here are a few things you can do: 1. Check the wire connections to the sensor. Make sure they’re tight and secure.The step below show you how to turn off fast startup on Windows 10: Step 1: Launch the Control Panel by pressing the WIN button on your keyboard, typing "control panel" (without quotes), and hitting ENTER to open up the first search result. Step 2: Change the view mode of the Control Panel to large icons. Step 3: Select "Power Options".4. If the pilot light keeps going out, the culprit is probably one of two things, with a third being unlikely but possible: Pilot light line flow set too low, or pilot line dirty or obstructed - The pilot light is just a low-flow branch of the gas line that is always on, maintaining the ignition source for when the burner is turned on.Menards for $77.97. What is the Mr. Heater Buddy propane heater? The Mr. Heater Buddy is a popular and highly versatile portable propane heater that's prized for its indoor and outdoor ...Occasionally, the main cause in many gas powered water heaters is the pilot light is too dirty or the tube it comes from is clogged or also dirty. Some water heaters use a small flame to heat the water that comes through, shrinking back down when not in use. In more electrical models, this is instead a small light that activates the burners inside.3. Keep all air openings in heater clear, free of debris or any blockage. This will ensure that enough air for proper combustion enters the heater. 4. If heater shuts off, do not relight until you provide fresh, outside air. If heater keeps shutting off, it requires servicing. 5. Turn off and let cool before servicing. Only a qualified1. Check The Power Supply. To operate any electric appliance, there needs a fluent flow of power supply. If somehow there is an inadequate power supply, the heater starts malfunctioning, including keeps turning off. Before moving through the solution period, let's have a glimpse about the root cause behind the faulty power supply: Worn out wires.There are several common reasons why your pool heater may be shutting off frequently: 1. The thermostat setting may be too low: Many pool heaters have adjustable thermostats which allow you to set the desired temperature. If the thermostat is set too low, then the heater will shut off before reaching that temperature and thus not stay on long ...If your portable heater keeps turning off, there are a few possible explanations. The most likely cause is that the heater is overheating and shutting itself off to prevent damage. This can happen if the heater is blocked by furniture or debris, or if the room is too small for the heater. Another possibility is that the heater is not getting ...See list of participating sites @NCIPrevention @NCISymptomMgmt @NCICastle The National Cancer Institute NCI Division of Cancer Prevention DCP Home Contact DCP Policies Disclaimer P.... Step 1: Turn off the heater. In the burner junction 1. Empty/Inefficient Tank. An empty tank is one of the major culp They will ask you for details of the issue and can recommend steps to keep yourself safe until they can come and fix the problem. 3. Broken Thermocouple. A broken thermocouple is another common cause of water heaters turning off. When the thermocouple on your water heater is broken, it might interpret the pilot light as being off even when it ... Why does my Braemar heater keep turning off? As the excess heat is detected the safety devices will turn off the heater due to safety reasons. #Easy Fix: An easy solution to this can be to simply clean the vents by taking the help of a technician/professional. Or, you may do it yourself by using a vacuum cleaner. 2.3. Flame Sensor. Your heater's flame sensor can become corroded over time with contaminants found in the natural gas or propane that fuels your furnace. If the flame sensor is dirty, the furnace will shut off prematurely. To prevent the corrosion from building up, it's wise to have your heater maintained every fall. Usually replacing parts to find the problem gets expensive fast....
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