Intertherm FEB-017HA-C-03 - Won't Shut Off

Questions about repairs and parts for Nordyne furnaces, air conditioners and heat pumps for manufactured homes including Intertherm, Mac and Miller brands. Click here for Nordyne parts.

Moderators: Mark, Greg


Sun Sep 23, 2007 10:32 pm

Our Intertherm runs continuosly and will not shut-off. The fan and heater blow hot-air all day, until we turn off the breaker. Turning the thermostat all the way down does not have any effect.

Any ideas or suggestions?

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Posts: 740
Joined: Sat Feb 17, 2007 4:23 pm
Location: Aberdeen, SD

Sun Sep 23, 2007 10:59 pm

Pending a short or something somewhere, probably the most common problem is a stuck sequencer. The sequencer part number for your furnace is 901075, which can be seen and ordered here:

You can't fail if you don't try!


Mon Sep 24, 2007 10:16 pm

I have now ordered the sequencer; hopefully that will do the trick.

I am thinking about updating the thermostat (to one of the programmable ones) - what style should I be looking for, or is it even possible to install a programmable thermostat?

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Joined: Wed Feb 28, 2007 12:07 am
Location: Tennessee

Tue Oct 02, 2007 4:28 pm

Just be sure it is for your units, heat and a/c types with same number of wires as minimum.

It will have to be battery operated or you will need to run a common wire from transformer to t-stat C connection.

I would get a Honeywell or White Rodgers and would buy from HVAC supply if possible. Better t-stats and knowledgeable help to get correct t-stat.

Take care and best wishes,
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