Below, we will troubleshoot the various causes for a furnace that keeps turning on and off every few seconds. Then that heat builds up and could end up causing your furnace to short cycle. My Sunbeam Electric Heater keeps shutting off? The moment I turn it to 2 (with the thermostat still on max) it goes off after about 60 seconds every time and remains off, regardless of how cold the room still is. If it’s flickering, split, small, orange or yellow-colored, then the pilot tube needs to be cleaned. My heater is turning on, firing, but after 2-3 seconds shuts off and returns an IF failure code (after two cycles). Normally, your gas furnace should cycle on and off 3-8 times hourly, maintaining a comfortable temperature in your home. But a furnace that keeps shutting off every minute or two won’t heat your house properly. It normally won't turn off until the temp is above the set temp, so it would run until the house got to 71 (again, this is adjustable). However, a furnace that won’t shut off can be equally frustrating. Here are a few steps you can take to turn off the heat before giving Robert B. Payne Inc. a call: This is the most serious issue that will cause a furnace to keep shutting off is an improper installation. If your furnace smells like burning, shut it off and unplug it immediately, as leaving your heater on can potentially be hazardous. If this screen gets clogged up it can't function as it's supposed to. However, it is important to understand how your furnace actually works (at a basic level) before troubleshooting – here is the 101 course. The gas water heaters built today have air inlet screens. Before heading towards the solutions, we have to understand the problem first. I'm using the SQH310 model. As can happen with many appliances, they can get dirty and therefore clogged. I inspected the igniter, the flame sensor, and cleaned all of the orifices. If your heating system is playing on repeat, it is probably getting pretty-toasty and uncomfortable inside. You should keep all your vents open, even in the rooms you don't use. However, an unpleasant smell can merely be a sign of a dirty air filter or dust buildup in the furnace. These are installed at the bottom of your water heater. Electric space heaters are a great way to keep warm during cold weather, but lots of folks find that they can’t run theirs for very long before they trip a circuit. When I set the dial to 1 and the thermostat to max, it keeps on heating just fine. Not only that, it may be signalling a bigger problem that you need to take care of. If your heat exchanger doesn't get enough air, it can't transfer enough heat. Which means that it won't let in enough air which is needed to keep the gas burners on. You can clean it out by turning off the gas first then gently poking a needle into the top of the pilot tube. Take a … When a heater is too powerful for a home, it will heat up the living spaces so fast that the thermostat will shut the heater off prematurely. What may be happening is that your aux heat is turning on when your thermostat falls to 68, but then it turns off when it reaches 70, but the heat pump stays on trying to get the house up to 71. First of all propane-fueled patio heaters can face a problem of sequential turning off due to a number of reasons. So don’t just sit there and shiver. An electric fireplace can automatically shut off when: The unit has overheated Airflow into the fireplace is restricted The temperature setting has been reached The heater outlet is blocked The heater element is dirty or dusty Incorrect bulbs are used. A burnt smell — or a heater that’s actually smoking — is a clear sign that something is wrong. 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