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My rheem air conditioner stopped cooling and I have unplugged the reversing valve and now it cools. Is the valve bad or something more?

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Possible stat wire bad or stat bad if valve is shifting it is working i believe they are energised in heating so no power cooling

Posted on Jun 17, 2009

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Why is ge ajes12dcc 11600/11400 window air condition/heater combo blowing cold air for heat the air conditioner is working fine but the heater is blowing out cold air


Hi, it sounds to me like your reversing valve is not switching the flow of freon over to heat, stuck in cooling. The valve is located near the compressor, it has a 24 volt coil on it. If you unplug it, it should switch the valve into heat. If not, the valve is probably froze stuck, and will need to be replaced. Something a service tech would have to do.
Shastalaker7

Nov 06, 2011 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Cool mode well reverse ob valve to heat


On a Rheem the reversing valve engages on heat. On a Goodman (and most others) the Reversing valve engages on cool. You will want the thermostat to engage the reversing valve on the orange. There may be a switch in the thermostat that allows you to chose either O or B. Select O. If you have a choice of wire on the thermostat of either O or B than choose O. Also check and make sure the thermostat wire goes to the outside unit. Also make sure you have a thermostat that is comparable with your heat pump.

Jul 01, 2010 | Goodman CPLT24-1 13 Air Conditioner

1 Answer

Can not get Goodman 3-ton heat pump out of heat mode and into cooling mode


The reversing valve may be stuck. It allows the unit to switch between heating and cooling. You may be able to give it a tap but only on one of the ends, not the sides, and only lightly. You could also unplug the reversing valve from the circuit board. Some reversing valves are energized in heat mode some in A/C mode. When you unplug it, if it shifts, you will hear a loud hiss as the valve shifts and the pressure equalizes.

May 04, 2010 | Goodman CLQ36AR49 Air Conditioner

2 Answers

Change out problem


AIR HANDLERS DO NOT ENERGIZE REVERSING VALVE , THE THERMOSTAT DOES THE JOB THROUGH THE O  OR B TERM TO THE OUTSIDE UNIT. IF YOU HOOK UP TO O TERM AND HEAT COMES ON WHEN YOU SET AC ON THEN SWITCH TO B TERM ON STAT. YOU SHOULD HAVE O TERM ON CONDENSER OUTSIDE AND YOU USE ORANGE WIRE IF YOU HAVE ONE. IF NOT USE UNUSED WIRE IN 6 WIRE STAT HARNESS.

Apr 21, 2010 | Heating & Cooling

1 Answer

ON A CALL FOR HEAT, REVERSING VALVE ENERGIZES, BUT THE COMPRESSOR DOES NOT START(BUT IT DOES IN COOLING MODE), TRACING W1 WIRES TO A ''CAP'' ON THE SCHEMATIC, BUT I LOSE IT THERE. I NEED A MORE DETAILED...


The only unit I know that energizes the reversing valve in heat is Ruud or Rheem, All other makes energize in cool. When you switch from heat to cool htere is five minute delay. The y energizes the contactor on heat and cool. Make sure your tstat is ok. Rus Keep in touch.

Dec 15, 2009 | Heating & Cooling

1 Answer

Honeywell Wireless System THM5320R Wireless system and thermostat startup ok. The issue I am having is that; when the thermostat is in cooling mode and the unit starts the reversing valve is in the wrong...


how old is the existing system? i do ac in florida and usually if its not the wiring, an old systems rev. valve may stick. a firm tap on the valve may solve your problem.

Oct 28, 2009 | Heating & Cooling

1 Answer

Honeywell Wireless System THM5320R Wireless system and thermostat startup ok. The issue I am having is that; when the thermostat is in cooling mode and the unit starts the reversing valve is in the wrong...


make sure you thermostat o terminal is used fir reversing valve in cooling, or b terminal is used if unit is a Rheem or Rudd, reversing valve at condensing unit may have bad connection.

Oct 28, 2009 | Heating & Cooling

2 Answers

Electrolux Kelvinator - Unit on defrost


When a heatpump goies into defrost, the unit is in a/c mode. and cool air is inside. You may have a bad reversing valve or bad defrost board.

Sep 25, 2009 | Electrolux E23CS75SS Air Conditioner

1 Answer

Haier model hr36civar heat pump unit . only need work ac please .


All but one heat pump energizes the Reversing valve in cool. Rheem-Ruud-Weatherking. You need to have power to the reversing valve for coolong. Just energize the valve from inside. Send one power wire out just for the Valve and use the ground or blue coming back. Rus

Jul 18, 2009 | Heating & Cooling

1 Answer

Replace Carrier tstatccshp01 builders standard thermostat with Honeywell rth7500 series and wiring not matching Does O wire go to Aux..? fan working but no cool air.


No... Aux. is auxiliary heat strip. This is usually a white or black wire its up to the choice of the installers preferance. O or orange wire. is used to the reversing valve on a heat pump. If you do have a heat pump there is a programing section inside the Honeywell t-stat. which should say heat pump or straight cool, then another section that will ask if you want the reversing valve to energize in heat or cool. most Heat Pump brands energize in cool the exception is Rheem and Ruud they energize in heat.

May 17, 2008 | Honeywell Heating & Cooling

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