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      • Solution: Check whether your furnace uses a heat-activated blower fan. If so, check whether the fan is switched “ON” on the thermostat. If so, it should come on automatically when the burners are lit. Otherwise, the heat0activated switch is likely bad and needs repair or replacement.
      householdair.com/furnace-fan-not-working/
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  2. 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.

  3. Set the t-stat to heat-auto-85* for a call for heat. Then when blower does not run, carefully use something to give the wheel a spin. See if it starts and runs then. If so, probably a bad run capacitor. Motor could be bad or going bad as well. If it does not run, then may be a loose wire connection in the blower molex plug or in a wire nut ...

  4. Nov 24, 2022 · I have a nordyne 7076700 gas furnace for a mobile home, and the blower never starts up when heater starts up. Steps: gas is on, furnace power on, thermostat is on.

  5. 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.

  6. 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.

  7. 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.

  8. Pilot stays on but the furnace doesn’t come on, step 2. Push the reset button on the limit switch and try raising the thermostat setting again. The limit switches on older homes don’t have a reset button.

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