Question about Intertherm P3RA-048K Air Conditioner

1 Answer

Adding a Condensing unit to an Intertherm electric furnace

Well my problem is that an wiring issue that deals with the blower motor. It will work fine when in cooling but when switched to heating mode the motor will smoke. Its definetly a mis wire but schematic is set up for heating only and has had three other people rigging it up and now schematic isnt right and central air has been added also can anyone throw me some tips on what the problem could be

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    New Friend:

    An expert that has 1 follower.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 30 Answers

You have the motor connected on more than one speed in heat mode. make sure inly one mode is connected

Posted on Oct 30, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

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 Air Conditioners

1 Answer

My intertherm furnace blower stops coming on. If I turn the thermostat up and down several times it will work properly for about a day. then will start doing it again. I have replaced the thermostat and...


Turn the power off to the unit and use a different color thermostat wire in place of the green wire. If this works, there is a short in the wire. If not it's likely either a relay or a bad motor.

Nov 05, 2013 | Intertherm P3RA-048K Air Conditioner

1 Answer

Nordyne furnace FEH017HA-04 the fan runs full force when the ac is on but half speed when the furnace kicks in


That is probably normal if it is electric heat to slow the air over the heating elements. Even some gas units do this. Check to see if the unit blower motor has wires for multiple speeds.

Oct 24, 2013 | Coleman Intertherm Nordyne Miller Furnace...

1 Answer

Ac blower motor attic


that is a model number for the outside condensing unit. to find the motor size for the inside unit, you will need the model off of the inside unit, gas furnace or electric air handler.

Aug 15, 2013 | Ruud UAKA048 Air Conditioner

2 Answers

I have an old Intertherm gas-fired furnace, Model MGH-055AB which ceased operating last night. It was quite warm when I arrived home, and when I set the heat up a little, began to hum, but the fan would...


Tom P's answer is generally correct: The motor start capacitor is usually not the problem. However, in some cases, particularly on older furnaces, where there were capacitors of certain make and production run will prematurely fail. This happened in March on a mobile home HVAC unit where both the blower fan and condenser fan motor capacitors failed open circuit. Both caps were of the same Mfg, and production lot.
Here is a suggestion (for you or an electrically inclined friend): Locate a substitute motor capacitor having similar Mfd (or MF) and Voltage ratings. Remove power from the unit. Reach into the blower squirrel cage and spin it to verify that the shaft is not frozen. Pull the wires from the existing capacitor noting color and location. Connect the wires to the substitute capacitor and secure it place. Apply power and turn on the blower. A no start? Motor replacement time.

9553c6a0-19fa-47ae-8e74-05a56f3e6836.jpg

Nov 08, 2011 | Intertherm P3RA-048K Air Conditioner

1 Answer

I've got a Air condition unit model BV124 30-10L16, which is the part of Lennox furnace unit. The indoor fan stops working now. The outside fan works fine. I checked the capacitor, fine too. Cooling...


Hello, a blower motor will not run for one of theese three reasons 1) No power to motor 2) bad capacitor 3) the motor itself is bad. One test you could do is take the wire of the L1 terminal on the control board and use a jumper wire and connect it to the wire on the high speed motor tap , if this gets the unit running then the control board must be replaced if it does not work then the motor is shot......make suremwhen disconnevting wires the power is off.

Sep 04, 2011 | Air Conditioners

1 Answer

Blower speed


Yes usually the black is high speed, the blue is low and red medium speed. plug the black wire from the fan motor to where the blue wire is, then put the blue where the black wire was

Jan 10, 2009 | Intertherm P3RA-048K Air Conditioner

1 Answer

Intertherm heating


My heating unit is blowing cool air. The thermostat will start the blower when the unit is turned on at the thermostat, but the air isn't hot. But,when I turn the unit on at the furnace/blower using the "Fan On" button, I can see the heating element heat up. After the blower starts the heating element does out. What could be the problem?

Oct 29, 2008 | Intertherm P3RA-048K Air Conditioner

1 Answer

A miswire


The blower is smoking because you have it hooked up to the same wires you've hooked the electric coil to.  That coil runs on 240 volts.  Those wires are typically red and black.  The motor runs on 120.  One of the wires should be shifted to a neutral (white wire).  Assuming the motor is still alive...this will fix it.

Oct 19, 2008 | Intertherm P3RA-048K Air Conditioner

4 Answers

WIRING


why did the wiring burn?Id have the heat exchanger inspected before rewiring.better to be safe.

Sep 17, 2008 | Intertherm P3RA-048K Air Conditioner

Not finding what you are looking for?
Intertherm P3RA-048K Air Conditioner Logo

152 people viewed this question

Ask a Question

Usually answered in minutes!

Top Intertherm Air Conditioners Experts

gbob59

Level 3 Expert

2963 Answers

MightyMikeJr

Level 3 Expert

347 Answers

Brad Brown

Level 3 Expert

13542 Answers

Are you an Intertherm Air Conditioner Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...