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alcherry 10-30-2011 06:41 PM

Nordyne electric furnace
 
I have a Nordyne E2EB015HA electric furnace in my east Texas mansion (doublewide). We had a cold snap and when we turned the unit on, it would only come on when it was in the "ON" position, not the "auto" position and has no heat. We changed the thermostat, and it works on both positions, but still no heat. The thermostat seems to work, as it will kick on at one temp, and shut off at another. We insured it was wired properly, at the thermostat and at the unit but still has no heat. It worked last winter.
Any help would be greatly appreciated.
signed:
Chilly in the piney woods

hvactech126 10-30-2011 07:45 PM

there is a good chance there is a problem with the relay or the strip heaters. WARNING!!! HIGH VOLTAGE contained within the furnace. IF unfamiliar with electricity I recommend calling a PRO.

HVACDave 10-31-2011 07:40 AM

1 Attachment(s)
Good chance it will be the first sequencer that the thermostat energizes, which turns on the heating element and the fan motor in heating mode. If you check the voltage going to the coil of the sequencer you should find 24 volts, this will power a heating element in the base of the sequencer which will heat up a bi-metal and then close the switching contacts that allows power to go through and energize the first heating element and the fan motor. As previously posted- all components in this cabinet are powered all the time. If you are not completely knowlegeable about how to safely work around live electrical equipment call an HVAC guy in to help you.

alcherry 10-31-2011 07:24 PM

After turning off the breakers, I opened it up, looked around, jiggled a few wires, and turned the breakers back on. The heating elements light up, but when I shut the unit off, the elements cycle on and off, with no fan. This is out of my league. HVAC dude scheduled.


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