Question about Intertherm P3RA-048K Air Conditioner

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HVAC unit The wire connecting the Intertherm unit has been cut. I want to attempt to fix it on my own but I can't seem to find when the end is located.

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You didn't say the wires going or comming to the inside or outside.!

Posted on Sep 03, 2008


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I have a 1987 Intertherm FEH-015HA electric furnace. The issue I am having is that my blower will not shut of unless I pull the disconnect. My thermostat will operate the heating elements like normal,

You most likely have a bad fan limit / cycling switch. If you kill the power to the furnace see if you can trace the wires from the motor to where the connect to the switch. It looks like a round button with tabs sticking out of it for the wires to connect. Mark down where the wires were connected and take it to a HVAC business or furnace supply house. Be sure to have the model off the furnace with you so you can get the correct parts.

Nov 25, 2014 | Intertherm Heating & Cooling

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I need an Owners Manual for Intertherm M7RL 060A BW

Unfortunantly In order to download the manual you have to fill out that you are a student HVAC professional at NORDYNE University Log In Register
Once you are in you select north american products.
Then select intertherm and click search products.
The Search will come up.
Select HVAC, Leave Select product type set to optional and type in the box below that M7RL. Click Search products.
Click the first Item on the list M7RL 95.1% AFUE Gas Furnace.
This will give you it all!

Be advised. If you are not a HVAC professional. Installing the furnace is not recommended. In order to get parts you will need to have a Contractors license or EPA Certification to purchase from the supply chains like Johnstone supply (the best place to get any part). Please be careful and think about the dangers of carbon monoxide, gas explosions and improper electrical hookups if you are attempting to do the repair yourself.

Hope this helps you

Nov 03, 2014 | Heating & Cooling

1 Answer

Light comes on showing rear defogger is on both fuses are good the one inside hood and fuse box all wiring is connected I am missing something else that its not working could button be bad?

Hi, I finally solved mine after about 3 years without it! Firstly, there is a connection under the carpet near the driver's feet. This connector connects 6 or so wires. The important one is the PURPLE wire that connects to BLACK. This connection burns out and melts the plastic connector, usually causing a short or potentially a fire! I just cleaned up the connector so that nothing was touching (no contacts touching eachother) and spliced the PURPLE and BLACK wire directly with some heavier gauge wire than whats used in the car.

NOW, i figured that part out 2 years ago and was still in the same situation. Finally got around to ripping the dash apart and taking out the hvac unit (where you control your temperature etc.)... In behind that unit is the very same PURPLE wire (opposite end of it) that has also burned and corroded in the connector. I disconnected the entire hvac unit, pried out the black plastic thing that contains the built in relay and defog switch, again used heavier gauge wire wrapped to the melted connector and fed that wire out with hvac bulb wires and spliced the other end to mr.PURPLE . Sealed everything up and to my elation, NO MORE FROST ON THE REAR WINDOW. Hope this helps someone.

Dec 05, 2010 | 2004 Chevrolet Cavalier

1 Answer

Need to locate and turn on the reset switches on my intertherm unit my house is not cooling at all.

There are NO reset switches. You need a HVAC technician to evaluate and repair. Probably a bad transformer if nothing works.

Sep 03, 2009 | Intertherm Heating & Cooling

1 Answer

I have a intertherm furnace that won't kick out just keeps going

Hello , I think I can help , with the power off to the unit disconnect the wiring on the thermostat and remove it make sure the wires are not touching, turn power back on and see if the unit still runs , if not thats the problem pickup a new tstat , if it still runs then you have a sticking contactor in the control panel of the unit , all of the componets in the unit feed off the contactor and its easy to find its about two inches by 3 inches. There are a set of contacts in it that will be blackend or burnt , remove, label all wires where they were going and pickup a new one at any Hvac, A/C warehouse.
Hope that helps , let me know how it turned out.

Dec 30, 2008 | Intertherm P3RA-048K Air Conditioner

1 Answer

Air conditioner not working.Tries to come on but doesn't. Blower and heat unit works fine. Model E1EB-010HA Nordyne. You can hear humming at outside unit.

Most likely a failed run capacitor in the outdoor unit. The unit either has two separate run capacitors; one for the outdoor fan and one for the compressor. Or it may have one dual run capacitor which is the two capacitors built into one casing. Usually either a grey or silver cylinder with terminal connections on one end. If you intend to replace, make sure the power is off first by pulling the disconnect or turning off the breaker. Mark all wires and make sure they get back to the same terminal on the new capacitor. Capacitors are rated by their capacity (go figure) the new cap must match the old cap exactly on the uF or MFD (called micro-farads) rating. Voltage rating on the capacitor must be 370v or higher (most new caps are 440v rated). If you are not completely comfortable doing this yourself, a qualified HVAC service company can take care of the problem for you.

Jun 25, 2008 | Intertherm Heating & Cooling

1 Answer

I need a coil for a split unit intertherm unit I dont know the model but the moble home is a 1998

That's not going to cut it. You can't just stick a coil on a system. You will need model # of furnace and most importantly the model # of the outdoor unit in order to find a coil that is an appropriate match; otherwise, you will probably end up shooting yourself in the foot and spending alot more in the long run to fix mistakes. I recomend contating a local professional to help you.

Jun 24, 2008 | Intertherm Heating & Cooling

1 Answer

Intertherm to Honeywell thermostat

Typically if you have a yellow wire in the "y" terminal blue is used as common or "c". As far as your jumper from rc to rh, that will depend upon what type of heat you have. If all of your heat and cooling come from your packaged unit outside, yes you will need the jumper. If this does not work maybe you have a bad breaker or transfomer.

Oct 12, 2007 | Intertherm P3RA-048K Air Conditioner

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