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The AC condenser fan doesn't work on my 2004 dodge with hemi engine Where can I get a diagrahm to troubleshoot the pressure switches that control it Any suggestions?
Wiki User
∙ 16y ago
i am going to assume you know what you are doing here, but if you dont, then maybe you shouldnt be messing with it. i am going to have to guess that you are not a mechanic, otherwise you would have followed the high side line back to the high side pressure switch. secondly, i know where i live, it is only 25 degrees f outside and i would be surprised to see the secondary fan come on in this cold of weather. the high side pressure switch and low side temp switches are plugged into your ac lines. from there they are wired into the control module. they only measure pressure. if pressure is too high, the ac compressor will be cut off, not the fan. if you really know what you are doing, then post some more info up here, and we can take it from there. first off, how did you come to find out the fan is not working? do you think it is not working? i still dont understand how you found this out.. Thanks for your responce.Im way south , Baton Rouge, it reached 80 degrees today.The a/c cools some while the truck is moving but not while stopped because the air is forced through condenser. As warm as it is at idle with a/c on the fan should cycle to keep the high side pressure within its normal range.Because of all this, today I unplugged the fan motor with engine on and a/c on and checked for voltage-14 volts, therefore the fan motor is bad.
Wiki User
∙ 16y ago
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What causes Back pressure on cooling system?
Condenser Backpressure is the difference between the Atmospheric Pressure and the Vacuum Reading of the Condenser, that is: Backpressure = Atm. Pressure - Condenser Vacuum Pressure Reading Usually, the condenser vacuum pressure is read by a manometer installed at the condenser. The atmospheric pressure is read using a barometer
What causes high head pressure in an air cooled condenser?
It is due to pressure rising due to a bad condenser fan motor, bad capacitor, obstructing of airflowat the condenser, or a dirty condnser.
What happens when refrigerant enters the condenser?
what happens when refrigerant enters the condenser
Why the vacuum is maintained in condenser?
For increasing steam turbine efficiency. if vacuum is not maintained then, uncondensable gases and air in condenser will increase the condenser pressure.
What is the function of condenser in laboratory?
The condenser receives hot high pressure gas refrigerant from the air conditioning compressor.
What is the suction pressure of condensate extraction pump?
Condensate pump suction pressure below 4 feet of the condenser is almost equal to condenser pressure (760mm of Hg). If the pump equiped under the deep pit , suction pressure is vary.
What does ac condenser do?
Refrigerant enters the condenser as a high pressure vapor. In the condenser, the heated refrigerant is cooled by transferring its heat to the air which passes through the condenser fins, and it changes state to a liquid during this time.
Where is the low press side on condensor on 95 yukon?
The condenser does not have a low pressure side, because the condenser is not on the low pressure side of the system - it is on the high pressure side, and refrigerant going into the system is at high pressure throughout the whole of the condenser. The high pressure side of an AC system begins at the compressor outlet and ends at the metering device inlet (refrigerant leaves the compressor outlet and goes directly into the condenser inlet). The low pressure side runs from the metering device outlet to the compressor inlet.
What side is the ac condenser on a unit?
The high pressure side.
What is Difference between vacuum condenser and atmospheric condenser?
An atmospheric condenser operates naturally at atmospheric pressure (1.013bar). A vacuum condenser operates at pressures below atmospheric and will use some sort of pump to provide a vacuum.
Is the condenser of an Air Condition unit part of the low side or the high side?
The condenser is on the high pressure (discharge) side of the system.
What is the cause a dirty air cooled condenser?
Excessive head pressure.
