If it’s not your blower that’s broken, it could also be your transformer, your run capacitor or your control board. Move the thermostat setting to “heat.”A furnace can be intimidating—especially when the heat won't turn on. Here’s what to do if your furnace doesn’t fire up like it should! In some cases, a furnace that won’t turn off won’t be able to utilize its emergency shutoff in the event of an overheating. MAY BE THIS WHY YOUR FURNACE WON’T TURN ON. Sometimes, thermostats misbehave and lose their programming, explains our friends at Gilmore Heating, Air, & Plumbing, a heating company in Folsom. Replace the wire or thermostat to fix the problem. Even if you have a gas system, it uses electricity and must be turned on. If you see or hear the fan turn on, your blower motor is not the culprit.  Head to the circuit breaker panel and open it up. Don’t try to survive all season without a furnace. Most of these furnaces were manufactured and installed after the year 1990. The air filter should be changed frequently to prevent these issues and to keep your furnace running. This field is for validation purposes and should be left unchanged. Push the switch to OFF and then to ON. Home; About; Services. To check if your thermostat is working properly, follow the below steps: Make sure your thermostat has power. The wrong thermostat setting. Idk if it had just started blowing or what. We'll quickly troubleshoot your heating system and get the heat back on FAST. My Honeywell Thermostat is Not Turning On! This is another common problem for heaters and air conditioning units in general. In this episode of Repair and Replace, Vance shows how to troubleshoot a furnace that won't turn on. There’s nothing better on the market than a Lennox furnace. The furnace won’t turn on if the gas supply is insufficient, and leaving the valve only partially turned for safety reasons can cause a malfunction. But as soon as they stop working, it's readily apparent. Furnace won't turn on, no clicking? A malfunctioning pilot light is an annoyance, for sure, but there’s no need to worry just yet. This makes the reset to their default settings. At the furnace, find the furnace’s power switch. Last night before bed, we set our heating to 70. When faced with this issue, many Chicagoland homeowners turn to Google for the answer. Check the circuit breaker and make sure that it … Refer to your user manual to locate the ignitor. Your furnace will have its own circuit breaker. If it’s dirty the air flow out of your registers may seem low. This is the blower motor. Another cause could be a defective blower relay. electrical, oil, gas, etc) to heat a series of coils. Usually, there is a small window on the side of your furnace. Contact McQuillan Bros and enjoy the best furnace tune-up and repair services throughout the year. 3. There are many common reasons for a lame furnace, including a lack of power, overloaded motor, no pilot light or no gas. I'm trying to light my furnace pilot light, but for some reason the pilot light button will not turn so I can light the gas. Furnace Power Issues. When you find yourself in a situation like this, start by diagnosing the problem with the help of the information below.  Equip yourself with a match or even a barbeque lighter.  If there is no flame present, locate the furnace control valve and flip the switch to OFF. My Honeywell Thermostat Says Wait: What to do Next? If it has been a while … CALL 248-673-7260. For More On COVID-19 Updates: Your email address will not be published. The good thing is that it is easy to identify and fix. Having a furnace that won’t turn on can be quite frustrating, especially when there’s negative temperatures outside. A furnace that won’t turn off might seem like more of a nuisance, but it can be fairly dangerous for you. Check underneath the furnace to make sure the blue pilot light is lit. Inspect your thermostat and make sure it’s in heat mode. Furnace Won't Turn On - Intermittent Problem. It’s important to note that automatic ignition furnaces do not need to be relit. If this is the case, then you have an automatic ignition furnace in your home. The first thing you want to do if your furnace … Show More. BillyHvac, Journeyman HVAC Tech. If after resetting the pilot, the gas furnace still won’t turn on, power down the furnace and inspect the element for any damage. Check your thermostat when your furnace won’t start. Switches . Ask Your Own HVAC Question. If your furnace isn’t turning on, you’ll want to check if your furnace’s circuit breaker isn’t the issue. You also need to ensure that the thermostat is set to the heat position.  You’ll now want to wait a few minutes. If you’re uncertain as to whether you own an ignition furnace or a standing pilot furnace, you’ll want to open and remove the door on the furnace.  You’ll want to hold in the PILOT button while you light the pilot. 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