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Intertherm funace limit switch controls the heater coil

What want is to be able to find a replacement part , keep in mind this heater is for mobile home which is atleast 20 years old

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Take the part into a heating and cooling repair business and have them order that part. You will also need to have the model number and brand of the furnace you have. I'm sure they will order one for you.

Posted on Jan 26, 2008

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Posted on Jan 02, 2017

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2 Answers

Intertherm baseboard heater model EBHA200024 has 240 volts but will not heat. It is on a circuit with another heater that does work. Would it possibly be the limit switch ?


That is the first thing to check. You can trace voltage to and from hi limit switch, if power is there and power applied to heating element check element. Please e careful, electricity respects no one.

Jan 07, 2018 | Intertherm Heating & Cooling

1 Answer

Where is the limit switch on an Intertherm M1MB070ABW furnace?


it would be a safety switch up by blower assembly. typically has red reset button.

Apr 26, 2015 | Intertherm Heating & Cooling

1 Answer

INTERTHERM HEAT PUMP/AC. BLOWER KEEPS RUNNING WITHOUT THE COMPRESSOR ON. SOMETIMES FOR HOURS. ALREADY REPLACED THE CONTROL AND LIMIT SWITCH.


Blower? Internal house air blower I assume. - Blower relay contacts pitted and stick in on position.
BAD Control BOARD, fault or adjustment program keeping relay energized. Bad emperature sensor not telling Board unit has use up cold air. loose wiring to sensors and board connections

Sep 11, 2013 | Intertherm Heating & Cooling

1 Answer

No problems, would like to find out the best way to remove blower for cleaning on an intertherm gas furnace mgh 075 ina mobile home


Generally ther is two screws at the base of the blower housing which hold it in place, remove the screws and pull, slide the entire assembly out. You will have to disconnect the electrical wiring to the blower and possibly the limit switch on the side if equip.

Aug 23, 2011 | Dayton Gas Furnace Heater

1 Answer

PSE+G stated the problem was diagnosed as a pressure swith on my Goodman heater....any suggestions to fix? Is this an expensive job?


How do you test a pressure switch and other limit controls? This is for people who are experienced with electrical equipment and the use of a Volt Ohm meter. *Please never by pass a pressure switch or limit control. The pressure switch and limit switches are there for your safety. If you have an open limit control either the furnace has over heated or the limit has gone bad. Problems that would make a limit open up would be dirty filters, dirty evaporator coil causing a restriction in the air flow or a slow blower motor (check the capacitor on the blower motor to make sure it is good). A weak blower motor capacitor will cause the blower to run slow and eventually fail. Pressure switches, and limit switches can be tested with a meter in the same manner. With the furnace calling for heat you can test each of the terminals on the pressure switch to ground to make sure the pressure switch is closed. You should be getting between 24 to 28 volts from each terminal to ground if the pressure switch is closed. If the pressure switch is open you either have a stopped up vent, drain line (if you have a condensing furnace) or bad pressure switch. Please keep in mind there are many different types. The front terminal is burnt and discolored. This is a clue that this pressure switch has a problem.

Dec 22, 2010 | Goodman GMS90703BXA Heater

1 Answer

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...


http://www.nordyne.com/Literature/707716c.pdf
http://www.nordyne.com/Literature/359a.pdf
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.

Dec 07, 2010 | Heating & Cooling

1 Answer

Intertherm ac with heater for clayton mobile homes. water is leaking on floor from ac unit in house. the outside drain is dripping good so it does not appear to be a clogged drain.


Sounds like you may have freezing coil. Clean your filters and the inside of your coils. Also blow out the drain (just in case). Many people pour a cup of bleach in the drain pain once a month to keep the slime from growing.

Jul 23, 2010 | Heating & Cooling

1 Answer

Blower on my Intertherm Model mgba keeps cycling on/off. What's wrong?


It could likely be the fan control switch. Open up the cabinet, and you'll see a metal box, roughly 7x9x2" inside, with the blower switch located on the top edge of it. There are usually two screws holding the lid on. Remove the two screws and the lid, and you'll see a couple of eye-shaped items side by side with 2-3 blue or orange wires running to them, each. They might have numbers on them such as 6263360 or 6263370. These are the limit switch and control switch, respectively. If your fan keeps cycling on and off, try replacing the control switch (6263370). The new part number for these switches are 626336 (limit) and 626337 (control). The control switch is also one of the cheapest (less than $10) places to start.

Good luck!

Oct 11, 2009 | Intertherm Heating & Cooling

1 Answer

Not heating


1st you said the fan runs..but partial info so best guess it fan limit contor bad.

Jan 07, 2009 | Intertherm P3RA-048K Air Conditioner

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