It could happen due to power surges or may wear out naturally. Electric coils burning out is a common issue these days. Troubleshooter 6 of 6: Contractor coil issuesĮlectric heaters and all heaters use electric resistance heating coils. Once you’ve done that, vacuum the coils and cabinet to remove debris using a vacuum hose.Ĭaution: While you clean, make sure your heater is turned off. Because you’ll need to unbolt them and slide them out. Mark the place with a white paint or primer once you’ve located it. But if you prefer to go down the DIY route, it could be a little tough. In case of permanent filters, you’ll have to go through the manual’s instructions to clean up the filters. SolutionĬlean the filters to remove the dirt. If you’ve been lazy about cleaning your heater, you might notice dirt stuck in your filters.Īre you baffled by the fact that a dirty filter could cause an electric heater blowing cold air? Well, the blocked filter basically stops the hot air from passing, which eventually does not warm up the room.Ī dirty filter may seem like a small issue but it literally causes your heater to function improperly just like how a burned pot full of debris causes a pellet stove blowing smoke in the house. Replace it with the help of an HVAC technician. ![]() You’ll need to replace the sensor if the temperatures show differently. Keep your thermostat temperature and air temperature on a constant check. Now if your heat sensor isn’t working, it’ll not turn off the blower fan causing the heater to continue and blow out cold air. For instance, when your heater has heated your home as per the thermostat, the heat sensor turns off the blower fan. ![]() So you could say, it’s the heart of the entire heating system. The heat sensor in your electric heater makes sure the heater produces heat. Troubleshooter 4 of 6: Heat Sensor Not Working We highly recommend inspecting and insulating your ductwork even if leaking ducts isn’t an issue. Try cleaning your ducts yearly to avoid such issues. Now for a DIY method, you can use high-quality duct tapes or mastic tapes to hold the ducts together. In this case, you’ll either need to replace your ducts or get them sealed off. Hence, your heater is releasing cold air which is passed on through the duct holes and leaks. Your ductwork may wear out due to the continuous change in temperature as it is exposed to the cold. Here’s why: There’s a high chance of leaks and tears in ducting. Regular inspection of your ductwork for the heater is just as vital as checking a geothermal loop for proper flow of hot water. More often than not, you’ll have to check up on your ductwork. You’ll have to get down to your basement to troubleshoot this particular issue. Space Heater Electric Heater for Home and Office Portable Electric Space Heater with Thermostat Now, look out for a faded display of numbers because then you’ll have to change the batteries as it’s causing your thermostat to malfunction.īy the way, here’s our recommended electric heaters: If you see the fan is on, change it to ‘auto’. Which is to set the thermostat temperature higher than the current temperature at your home. But make sure to follow the rule of thumb. Thermostat issues are pretty common and you can easily fix them. If this isn’t the case, well then do check for the batteries because often the thermostat works incorrectly due to dead batteries. This causes the thermostat to blow cold air when the heater is turned off. Or you might’ve accidentally turned the fan on, which is set to blow continuously. How? You may ask.įirstly the thermostat might be set to a different temperature, which is probably why you’re shivering. Now if you still feel cold air gushing out of the heater, there’s a possibility that the thermostat is the culprit here. Give the heater enough time to warm up and your problem shall be fixed. Eventually, hot air will begin to blow out of it. SolutionĪll you need to do is have patience and let the system warm-up. Hence, most of the time, cold air could come out through the heater right after it’s turned on. The machine usually takes time to warm up as the air travels through the ducts into the surrounding. It’s a natural phenomenon for heaters or air conditioners to blow out room temperature air right after they are turned on. ![]() Conclusion Electric Heater Blowing Cold Air: Problems and Solutions Troubleshooter 1 of 6: No Time To Warm Upįirst things first, check if the cold air is blowing right after the heater is turned on.
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