Question about Air Conditioners

3 Answers

Replace Contactor Relay on Rheem Air Condenser

I am replacing the double bareel 24 amp contactor relay switch in my Rheem air condenser. I purchased a non-Rheem contactor switch that is also double barrel and 24 amp. However, the connections do not match the original switch. Do I plug in the conncetion on the corresponding sides or is this much more difficult? Help please.

Posted by on

3 Answers

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

I have a Rheem heat pump/airconditioner, Mod # RPFA-036JAS, that I have had problems with for at least 5 years and have paid over $1,000 in parts and service calls. I can vever recreate the problem when a tech is here. It usually happens in the middle of the night. I hear a Click, ckick, click sound, through the unit and it sounds like it is comming out of my air handler, but the outside unit also clicks at the contactor and the condensor cooling fan moter will start and stop about every half secongd or second. Both contactors have been replaced, the small one twice, one capaciter
has been replaced. I allow the unit too cool down and its alright for a few hours. That is difficult when the outside temp is below zero. HELP PLEASE!

Posted on Dec 10, 2009

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

REPLACED BLOWER MOTOR ON LENNOX NOW THE FAN WILL BLOW FOR A BIT BUT THE COMPRESSOR DOESNT COME ON TO START COOLING

Posted on Mar 28, 2009

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 56 Answers

You just need to go wire for wire on the contactor. You can also draw a wire diagram to make sure wires go into same spots.Make sure power is off for safety purposes. As long as amperage of contactor and voltage of coil is correct you should be fine.

Posted on Feb 16, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

A/c blower comes on but outside unit does not


do you have power to the outside unit. If so you may have a bad contactor or loose 24 v control wiring

Apr 23, 2014 | Ruud Rheem Weather King 24 Volt Contactor...

2 Answers

Rheem RAKA-060JAZ trouble question


pls check for compressor shorting and relay issue in pcb

Oct 12, 2013 | Air Conditioners

1 Answer

What is a contactor?


Hello, a contactor is a switch/relay that turns on and off the power to the compressor and condenser fan motor. It is located in outdoor unit in the control panel. You can follow the wires leading into the outdoor unit and they lead to the contactor.

Jun 11, 2012 | Carrier Air Conditioners

1 Answer

The air coming from the air conditioner is not cold


First, power everything down! You will need to climb on top and remove the cover. Inside you will see the compressor, condenser grill, a contactor-relay and capacitor. Most likely it is either the capacitor or contactor-relay (70% probability) or the compressor (25%). If you see ice build up on the connections or on the condenser grill it could be that you are low on freon or have a leak in your sealed system.

If things look normal then I would go with the contactor-relay and capacitor. If things are iced up, you will need trained technician help. Most AC shops will work on it, but won't have the Dometic parts. An RV place will have the parts but you usually pay a premium price for the labor and service.

Aug 18, 2011 | Dometic Rooftop RV Air Conditioner

1 Answer

Rheem RPGB-37JAS. I purchased Defrost Control Kit 47-102684-83 to replace old defective one. Old board had wires on terminals labeled 18-30 VAC, COM, DEF RELAY, and HOLD. New board has terminals labeled...


C- is common/ground of the board FM transformer
R-is 24 volts to the board FM transformer
B- is to energize reversing valve for heat from thermostat.
D- energizes the electric heat in defrost mode.
Y-comes from the thermostat and energizes the compressor and condenser fan motor by pulling in the contactor.

Feb 11, 2011 | Ruud UAKA042 Air Conditioner

1 Answer

Hi, I have a goldStar GA 1866VHR split Airconditioner, (5050w cooling and 5040w heating capacity). Today I noticed that compressor/condenser unit was still running after I turned off the aircond: from the...


Thanks for your detailed information. But solution is very simple. The compressor contactor in out door unit. Struck. And hence, when you power on, without indoor commanding, the out door starts running.

Replace same type Contactor relay (In out door unit) immediately. Hope, it's helpful.

Jan 19, 2011 | Air Conditioners

1 Answer

Air Handler: I have two 24V supply lines one from the transformer the other, I think from the condenser fan. Both wires are connected to a relay which operates the indoor blower. When the 240V power supply...


you have 24 volts from the indoor thermo to the transformer in the air handler then 24volts from air handler to the contactor when this is energized it goes to 240 volts to run the compressor and outdoor fan. Sounds like the contactor is not enegizing check the voltage at the contactor. you should have a schematic to show you the voltage.

Jun 21, 2010 | Air Conditioners

1 Answer

Contactor not engaging to start condenser unit . When setting the thermnostat, i hear the click from the unit starting inside the house. Fans start and air starts blowing inside the house, but the...


I would replace the contactor if you are getting 24 volts to the contactor and it isn't engaging therefore the magneto on the contactor is out and the contactor will need replacement. If you don't have 24 volts at the contactor then the transformer that sends the 24 volts is bad and will need replacing

Dave

Mar 11, 2010 | Air Conditioners

1 Answer

Carrier A/C units


Double check that the new contactor has the same electrical ratings on it. My guess is that the coil should be 24v while the relay should be able to carry the same amperage at 220v.

First shut off the breaker and disconnect switch for the furnace and outdoor condenser and call a licensed HVAC contractor:)

If you are determined to do it yourself, Then read the schematics first. Be aware, if you mis wire the system you may cause more damage than you have now. Not to mention your personal safety is at risk.

I am basing this on the most common style contactor found in my area.

The main relay side should be labeled. (eg. L1,L2-T1, T2). These should match exactly like the old one. L1 and L2 are the incoming power. T1 and T2 are the power leaving the contactor. All the 220v wires should correspond to one of these four terminals either by screwing them down or fitting the spade connectors together.

Usually the 24v wires will plug onto the coil (near the bottom, left and/or right sides of the contactor) silver spade connectors.

(STEP 1.) Leave all Wires Connected to your Old Contactor.
(STEP 2.) Remove the two mounting screws that hold the Old Contactor to the Air Conditioners casing.
(STEP 3.) Now Install the New Contactor to the old contactors existing location using the Same two Screws.
(STEP 4.) Now take Off one wire at a time from your old Contactor and Install each wire one at a time to the proper location on the new Contactor.

Jun 24, 2008 | Carrier 38CKC042 Air Conditioner

Not finding what you are looking for?
Air Conditioners Logo

Related Topics:

2,355 people viewed this question

Ask a Question

Usually answered in minutes!

Top Air Conditioners Experts

Dan Webster
Dan Webster

Level 3 Expert

8147 Answers

Bill Long

Level 3 Expert

577 Answers

Tim Whalen

Level 3 Expert

3056 Answers

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

Answer questions

Manuals & User Guides

Loading...