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- If you switch the thermostat control to “on” and nothing happens, then try replacing the batteries in your thermostat or setting the temperature controls to 3-5 degrees above the temperature in the room. If none of these work, then you should call a furnace repair expert ASAP.
People also ask
Why does my mobile home furnace blower not come on?
Why is my furnace blower fan not working?
Why is my furnace not working?
How do I troubleshoot a mobile home furnace?
Mobile Home Furnace Blower Will Not Come On. If your blower does not turn on, first look through the viewing hole above the gas valve and see if the burners have lit. If you don’t see them burning, then jump to the burner won’t light section.
Feb 8, 2019 · It doesn’t come on if in "auto" mode but if I put it in the "on" mode, the blower comes on and I have heat. I replaced the limit switch L170-40 and still have the same problem. There is another limit switch in the blower area L140-40.
Pilot stays lit, fire comes on, but the fan doesn’t come on. Possible the fan switch. This is an $8 part located on the lower side of the furnace by the fire box. There is no way to test it, you just have to replace it and see if that fixes the problem. New fan switch doesn’t fix the problem.
Nov 12, 2023 · Check the fan belt. What to do when your furnace blower won’t turn on. The first thing that you should do if your furnace blower isn’t turning on is change your thermostat to fan-only mode. Fan-only mode (also called fan mode) does not heat or cool your home. It only turns the blower on.
- One of the 24v Electrical Safety Switches Inside the Furnace Has Tripped. A furnace may have the following safety switches. If any of these are electrically open, the blower motor may turn on and stay on until the switch automatically resets or is manually reset.
- A Bad Thermostat. If the thermostat is not calling for heat, air conditioning, or fan to turn on, yet the fan is running, a quick test can be performed to see if the thermostat is the problem.
- Bad Thermostat Wiring. · This may be due to a thermostat wire being flattened by a staple, or having been chewed by an animal (e.g. mouse, squirrel, etc.)
- The Control Board Has Closed Contacts that are Welded Together. · Turn on the power to the furnace. · If there is no power measured on the G, Y, and W terminals, but there is 120 volts on relay contact going to the blower fan motor either on the heat or on cooling terminal, this indicates that the contacts inside the relay are welded together.
May 12, 2021 · If you switch the thermostat control to “on” and nothing happens, then try replacing the batteries in your thermostat or setting the temperature controls to 3-5 degrees above the temperature in the room. If none of these work, then you should call a furnace repair expert ASAP.
Nov 22, 2021 · Reasons Your Furnace Blower Won’t Turn On. 1. It’s a Thermostat Setting Issue. Most thermostat issues originate at the thermostat, and blower motor issues aren’t different. If your blower isn’t turning, you most likely have a faulty thermostat.
