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Just started this week. Furnace will work very intermittently.
When I turn it on either it will work or I can hear the smaller blower motor running but the big motor will not turn on. Also heard some sharp crackling noises (more on this shortly)
Things I have done - took the upper & lower cover. Checked to see if the reset button was tripped - was not. Reinstalled the lower cover and then manually held in the safety switch. The big blower turned on immediately and after reinstalling the cover (thus closing the safety switch) the blower works okay. The air temp from the vents is cool however. Sometimes it will start blowing warm air just fine. Will heat just fine then the temp starts dropping again and if you listen to the furnace you can hear the smaller motor running and seems like the furnace is trying to ignite.
Do not see any issues with water contamination although it has been raining pretty hard. However if it was a water issue blocking the vent I would suspect i would never kick in.
I read that there are some self diagnostic you can do on the circuit board and also see a label showing how to initiate it. Should I try this first?
Also this is equipped with an electronic air cleaner. When I held the safety switch in I could see arcing from the romex cable to the furnace housing. Turning off the electronic air cleaner (has a shut off switch) and arcing goes away. not sure if we are dealing with a bad heater or just shorted wiring.
Thank you for any ideas and suggestions. With work being very slow spending a lot of money on this is simply not in the Winter budget at this time.
When I turn it on either it will work or I can hear the smaller blower motor running but the big motor will not turn on. Also heard some sharp crackling noises (more on this shortly)
Things I have done - took the upper & lower cover. Checked to see if the reset button was tripped - was not. Reinstalled the lower cover and then manually held in the safety switch. The big blower turned on immediately and after reinstalling the cover (thus closing the safety switch) the blower works okay. The air temp from the vents is cool however. Sometimes it will start blowing warm air just fine. Will heat just fine then the temp starts dropping again and if you listen to the furnace you can hear the smaller motor running and seems like the furnace is trying to ignite.
Do not see any issues with water contamination although it has been raining pretty hard. However if it was a water issue blocking the vent I would suspect i would never kick in.
I read that there are some self diagnostic you can do on the circuit board and also see a label showing how to initiate it. Should I try this first?
Also this is equipped with an electronic air cleaner. When I held the safety switch in I could see arcing from the romex cable to the furnace housing. Turning off the electronic air cleaner (has a shut off switch) and arcing goes away. not sure if we are dealing with a bad heater or just shorted wiring.
Thank you for any ideas and suggestions. With work being very slow spending a lot of money on this is simply not in the Winter budget at this time.