Why does my furnace only work after power reset?

Reference your service manual to diagnose the error code. You may have a faulty sensor, sticky motor, bad controller board, too many closed dampers, a blocked air return, incomplete combustion, cracked heat exchanger, blocked condensate line, etc etc. some of these things are life-critical situations.

What to do if your Atwood furnace won’t ignite?

Lifted the little cap off the gas valve and inside turned the inserted screw very gently till it stopped. Do not tighten. The furnace has worked perfectly ever since. I found that my atwood 8531 furnace would not ignite unless I pounded on the side of the furnace.

What to do if your Furnace Fan won’t start?

But here are some suggestions to start troubleshooting the problem of a furnace blower fan that does not start: Step 1: I would start by confirming that the blower fan will operate. Your system probably has a manual FAN ON switch on the thermostat, or if not, there may be a FAN ON push pull switch right on the fan limit switch in the air handler.

Why is my furnace reset button not working?

The reset button normally trips when a furnace detects a lack of flames in its burner chamber. Your heating system will immediately turn off to stop damage from occurring. There are several different reasons why the flame might go out. They are usually related to an interruption in the fuel supply.

How often does your furnace not turn on?

From time to time our furnace will no longer turn on and the house will cool off until we “kick-start” it by turning the thermostat off then on. We can go weeks, days or just hours between “fits”.

What should I do if my furnace won’t restart?

Over time they get dirty and then will drop out the burner erratically and the furnace will have to be manually reset. If you know how to test and have the right test equipment, that should be done first.

Do you have to move the thermostat to turn on the furnace?

When the system is working, the thermostat does keep the house properly conditioned. Moving the temp control makes no difference, ONLY toggling the on/off switch on the thermostat will kick on the furnace.

Why is the reset button on my oil furnace not working?

The causes are too many to list and go from changing the filter (s), nozzle, strainer and doing a complete brush and buff to changing the primary control. That red button doesn’t come up for no apparent reason. It is locking out on “Safety” for your safety.