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Take the switch and you can probally find a generic match on the Grainger web site. They have plenty to look at most limits have two wires not sure about two poles

Posted on Dec 11, 2009


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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

Replace a kfceh3101c15 with a 20 kw. 15 kw just is not keeping up in this weather

The best answer would come from Carrier. Here is their contact info-

Feb 23, 2015 | Carrier Heating & Cooling

1 Answer

Limit switch

3 poles are mostly use for 3 phases it should be available at any HVAC supply stores

Nov 12, 2013 | Intertherm Heating & Cooling

1 Answer

Where is the flame sensor on Intertherm MGHA-070abfc-01?

There is no flame sensor per se, unless it has an ignition type pilot. Only temperature activated switches employed.

The limit switch to the left of fan switch is "Nordyne" part #626259. This switch is rated at140 degrees. When the temperature inside firebox exceeds 140 degrees, switch "opens" removing power from the secondary of 24vac xfmr.

The fan switch to the right of the limit switch is "Nordyne" part #626337. This switch closes when firebox temp reaches 115 degrees. Opens at 70 degrees.

At the top to the left of fan is a smaller limit switch, which is a secondary safety switch. The increased temperature within the heat exchanger box activates this switch. It is wired in series with the thermostat wiring.

Hope this info helps.

Feb 05, 2013 | Intertherm Heating & Cooling

1 Answer

Intertherm MGH-075AAC burner cutting out before fan comes on

If you have a combustion air problem the flames will fade out instead of turning off abruptly. 15 to 20 seconds is a long time. if you are sure it is taking that long then it is not likely a flame rectification problem. If a limit is turning the flame off then it will turn off very abruptly like you turned off a switch. The evaporator coil situated above it may be dirty and in need of cleaning. sometimes however the limit switch will get to where it is shutting off at a way lower temp than it should. Limits are cheap enough and easy enough to just replace. DO NOT BYPASS THE LIMIT!!!!! You could burn your house down!!

Aug 28, 2017 | Intertherm 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

2 Answers

When I switch the T-stat to (fan on) the blower won't come on unless I move the Fan limit up close to the 100 degree mark and then I move that limit back down close to 130-135 degree and after approx. 10...

That fan switch is for the heating mode,when the burner starts, that switch won't allow the blower to come on until the combustion chamber is warm, so you won't have cold air blowing out of the ducts in the winter. It's usually set at about 120°. If your getting 24 volts to the blower relay for cooling and the blower doesn't come on then check across
the relay points for the blower and if you have
120 volts and the blower isn't running then that relay is bad and needs replaced.

Aug 13, 2009 | Heating & Cooling

1 Answer

Furnace has does not ignite flame

how often do you replace your filter?

On the limit switch that protects your unit when it gets to hot the number one reason is dirty filter.

The pressure switch is located in the upper side of cabinet has a rubber hose connected to it. They very rarely go out though. So find your vent fan the first fan that comes on and follow the rubber hose to the switch.

Feb 09, 2009 | Intertherm P3RA-048K Air Conditioner

2 Answers

Intertherm Furnace Will not stay on

possible dirty air filter low air flow causing high temp in fire box to trip limit switch or fan motor is bad hope this help let me know if you if this solved problem I may need more info

Jan 04, 2009 | Intertherm P3RA-048K Air Conditioner

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