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Nordyne electric heater

I have a Nordyne, model # e2eh017ha electric heater in my home and it has been intermittently blowing cool air instead of hot. It has now gotten to not blowing any hot air. The blower works fine and I have inspected the heating coils and ohm tested them and they seem ok. I see all the compenents of the heater but don't know what to look for and how to test them. With some explenation I may be able to test and find the problem. Is there possibly a common failure of these heaters? Possibly the circuit board. Any help would be appreciated.

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Re: Nordyne electric heater

If you have 24 + volts between common and w or w2 when your thermostat is calling for heat, you might have a or a couple of defective heat relays or sequencers.

Posted on Nov 28, 2007

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How do fix a/c on 2003 yukon it blow cold then hot than back to cold

A few possibilities:
Stuck or inoperable Air-flow Diverter:
There are tow types of air-flow diverters: Vacuum Actuated and Slide-Cable Actuated (some will have an electric solenoid that controls a vacuum actuated type). In either case the default position of the diverter is "cold air" or closed - blocking air flow over the heater core. Sounds like it may have a vacuum actuated control - when it looses vacuum it will let the air-flow diverter swing shut blocking off air blow through the heater core resulting in "cold air" Could be a bad control/slider, bad or loose hose, or bad actuator. If you remove the blower motor assembly you will be able to see the diverter and might be able to tell the issue is.
Stuck or inoperable heater valve:
This valve controls the flow of engine coolant to/through the heater core. It is normally closed - blocking flow. This can be vacuum operated or cable controlled just like the air-flow diverter. Simple to check - in the engine compartment, to the left of the engine locate the cooling (heating) lines that go into the fire wall - locate the valve and check its operation.
Another possibility is low coolant level in your engine/radiator which may be too low to allow flow of the coolant through the heating coil, although you would likely notice that the engine was over heating/running hot.

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1 Answer

Lowvoltage fuse keeps blowing

the contactor on the condensor if it blows on a call for cool.

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I have an Intertherm electric furnace in my mobile home model # FEHB 015A. The heater started acting up by first blowing warm air like normal but then blowing cool, not heated air after a few minutes of...
The diagrams above may not be exactly what you are needing. But they will be close. Usually the diagram for the furnace is on the inside of the blower fan door. Two things come to mind. It seems like your limit switch(s) are cutting out, then in, then out, etc and may have failed totally. These are in the system to prevent the temperature in the furnace from getting too high. Why they are cutting in and out may be due to the lack of sufficient air passing through the furnace. This can be caused by, 1. the fan speed is too slow, or 2. the air filter is needing to be changed. I am not sure how proficient you are with electrical troubleshooting. I would (turn off all power to furnace) find the limit switches (usually at the top of the heating elements) and check to see (with an ohm meter) if the switches are allowing the meter's current to flow through them. Your meter should read near zero, if not, then I would replace the switch with an exact one. If you are proficient with electrical troubleshooting, I would place the furnace in the "call for heat" position, with the power on, (be careful, this stuff can hurt) and I would see if I have voltage at the heating elements, and I would check with my voltmeter across the two leads on each limit switch if there is voltage present. If there is voltage present, then the switch is probably ****.
Depending on the furnace you have, you might have a number of switches that control the heating elements, these units are usually time delay and if they fail, you should replace them with the same delay time. I hope this helps.

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Our AC (Heat pump)is blowing hot air in the afternoons as the temperature outside rises. We have had the freon checked and it is okay. The AC will blow hot air for about 30 minutes then blow cool air. Our...

Your unit may be going into a defrost cycle. If so sounds like a bad defrost board. It sends a signal to electric heaters inside to come on. Change board and sensor

Jul 28, 2009 | Whirlwind FH-778 Air Conditioner

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I have a intertherm model feh-017h electric

It's the heat kit in the unit that is causing the problem. You need to do a continuity test on it to eleminate that they have shorted. This is the only thing in an electric furnace that will blow a fuse on it. Intertherm is a Nordyne product for manufactured homes. Of coarse they still sell them! I am a Nordyne dealer. Also a sequencer can not cause a fuse to blow. The service guy just wants to make money from you by installing a new unit. You can either re-wire the heat kit or you can purchase a new one and have it installed. If you are referring to the heat kit for 159.00, then that's a fair price for it if you are a non licensed person.

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Intertherm not cooling correctly

Sound like air flow problem to me, the inside and the outside. check the inside filter to see if it's clean and clean the outside condenser coils by washing it.

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