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What would cause a isuzu a/c compressor to stop working if you crossed the condenser wires?

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  • Refrigerators Master
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Blown fuse? Are you getting voltage to the compressor?

Posted on Jul 17, 2013

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I have a 95 isuzu holden rodeo. My a/c compressor is not getting power to it? I have changed the fuses and relays.Compressor works and blows cold air if i hard wire it? What could be my problem?


there are several switches that control the compressor
one is a low pressure switch that will stop the compressor if there is a gas leak
the next is a high pressure switch that will stop the compressor if the condenser fan stops or there is a blockage in the line after the compressor which results in too higher a pressure that will destroy the compressor
next there is a relay controlled by the thermostat that controls the compressor to cycle it when cabin temperature is reached
I suggest that you have an accredited ac specialist shop diagnose the problem as it can get costly

Nov 02, 2015 | Isuzu Cars & Trucks

2 Answers

I have a 1997 Isuzu Rodeo 2.6L cylinders 2 & 3 won't fire after vehicle starts but will fire if I unhook cylinder 1 or 4 what will cause this


USA car? must I GUESS?
so you have 2 coil packs. ????
called wasted park
seems you typed the displacement wrong, !!! 2.2L is 4 banger...
1 and 4 fire as a pair
2 and 3 , fire as a pair , in series

so if the spark wires open , you loose a pair,
say #1 opens, you loose #4 with it.
they are wired in series.
if one spark wire grounds out , you lose only THAT spark plug.
but why would you get the odd pack to pack cross talk.
(assumes you have the HV wired right. correct?)
the packs cant be wired up willly-nillly.
this is the 2.2L coil pack.
and IS wasted SPARK system. for sure.
and can not be mixed up
the PCM is hard coded for 1,3,4,2 firing order.
and must be wired right. did you meddle here?
if you unplug the 2 one right , this must not make the 2 on left work.
pulling 1 wire, only kills the adjacent wire. normal.
see the pairs there, at the bottom see those hiddencoil packs mail coils molded to case?
if you are wired right and you have cross talk from 1/4 to 2/3 bank
the pack is bad.

25857019-xm4r4cd100gbehm3txueal2s-4-0.jpg by cross talk i mean, 1;3 effect 1/4 or the reverse.

Sep 09, 2015 | 1997 Isuzu Rodeo

1 Answer

How do i get my condenser fan to stop running. it is cooling fine but won't shut off unless i shut it off.


Are you sure its the condenser fan? The fan is attached to the compressor power and wont run unless the compressor is running. On the other hand the fans inside the cooler will run 24/7 and are designed for continuous duty. If someone has worked on the compressor wiring you may have to re establish the wiring following the wiring diagram. I have seen condenser fans wired in hot areas to run continuously to attempt to cool down a hot compressor or compensate for a worn out or damaged condenser that doesn't get rid of the heat from the system. If that is the case a new condensing unit is probably in your future. Hope this helps good luck.

Oct 09, 2014 | True GDM-47 Refrigerator Merchandiser -...

1 Answer

A/C unit compressor stopped working after thermostat install - please help.


verify that the thermostat is completing the circuit on a call for cooling, check the contactor at the condensing unit, verify the low voltage, the wiring may be crossed somewhere.

Sep 29, 2014 | Heating & Cooling

1 Answer

Rheem air conditioner fan comes on ,goes off ,comes on but not all of the time reaches room temp then goes off


If your description is in a few minutes, It sounds like a loose wire. If it is the outside fan motor to which you were referring, it should have 3 wires. Find those 3 wires and trace them back to the control board and main contactor. check the condition of any connections and the condition of the insulation. Next, If it is the blower motor, do the same thing.
It also sounds like it could be the control wiring. The blower control wire is the green wire coming from the thermostat and going to the fan control board in the air handler. If you have a loose connnection in the thermostat and/or loose connnection for some splice in that wire, it could interrupt the control power to the blower motor and cause it to cycle.
If it is the condensing fan on the condensing unit, it is the yellow wire. Check the same criteria as green wire above.

As far as the last of your inquiry, the air conditioner reaches temperature then turns off is normal and is not part of the problem your having.
The only other thing I can think of without more information, If the condensing unit comes on and shortly later turns off, the question is whether the condensing fan comes on when the compressor turns on. I had a case today, both the outdoor fan and compressor would not run, but the main contactor was pulled in, and voltage was available. It turns out the dual capacitor was bad and the condensing fan had stopped running and the compressor was cycling on the inherent motor protection inside the compressor. Inside the compressor is a bimetallic overtemperature switch that helps protect the compressor from getting to hot. This is your probable cause and can be determined by checking the temperature of the condensing fan motor and the temperature of the compressor. If both are so hot your hand gets burned, you probably need an new capacitor and outdoor fan motor. If the compressor cools by turning it off, the inherent motor protection will reset if it has not burned out. If after deenergizing the compressor cool off and will not reset, the compressor will have to be changed.


Hope this helps.

Jun 25, 2014 | Goodman CLQ36AR49 Air Conditioner

1 Answer

2001 Isuzu Trooper air conditioner stays cold as long as outside temp is below 70 degrees. will stay cold for long time idling start down road it will start blowing hot,turn it off for about 5 minutes...


Get the charge checked. It might be a little low which would cause the compressor's clutch to disengage. Also clean the condenser (located in front of the radiator, make sure it's not obstructed). A blocked condenser leads to high head pressure and then low capacity.

Aug 20, 2013 | Air Conditioning Condenser 2001 Isuzu...

1 Answer

Compressor stopped working. Air handler works okay. Checked wiring in thermostat-that is fine. Air handler is not frozen up. Breaker shows fine on meter.


Hi,
Check for power out of the contactor...is the condenser fan running?? If so then the compressor should have power...could be the compressor capacitor...or a bad compressor.
Here is a tip about troubleshooting your air conditioner...
There are many things that can cause your air conditioner not to cool...

AirConditioner Trouble - Review the Possibilities

heatman101

May 14, 2011 | Carrier Air Tools & Compressors

1 Answer

The gasket around my refrigerator is too hot to touch, what is wrong?


turn your frig off as soon as possible! this is an easy fix but if it goes to long it can cause permanent damage to the compressor and then you have a huge repair bill, or a big piece of trash :(

What has happened is this:

There is a fan called the condenser fan that blows air across the compressor to keep it cool. This fan has stopped working for some reason and now the compressor is VERY hot. When this happens it stops running and you get zero cold produced.

The reason the mullion is hot is because there is tubing connected to the compressor that is run through this area for condensation prevention purposes. When the condenser fan stops working, this tubing gets much hotter than normal, and that is what you are feeling.

So, replace the condenser fan motor before the compressor gets to hot that it damages itself! If I can be of further help please let me know, good luck friend!

Jun 07, 2010 | Whirlpool Refrigerators

1 Answer

Where can I get a wiring diagram for an under-counter Beverage-Air cooler. The condenser runs then stops after a few seconds. Figuring a bad relay? The power runs but the condenser kicks off immediately...


If it's the condenser fan you are talking about you will not need a wiring diagram. The fan should be wired to the compressor and the thermostat. the thermostat is the relay to start the fans and compressor. I will continue to look for a wiring diagram. When the fan wears out they will stop causing the cooler to overheat. I think replacing the fan would be what you need. I believe that Beverage Air used the Copeland compressor with the condenser fan mounted on the one end of the the same slide in compressor. Check your voltage on the 2 wires going to the fan. When compressor is on the fan should also be running. I just have the feeling that condenser fan is defective.
Sea Breeze

Aug 19, 2009 | Refrigerators

1 Answer

I replaced the Trane condenser cool my house down


You have the contactor wired improperly. You need to go to the low voltage wires coming from the thermostat. The wire combination you gave sounds like you are looking at the high voltage coming off of the capacitor. If it wont shut off you most likely have the red and yellow wires crossed.

Jun 28, 2009 | Ruud UBHC Air Conditioner

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