If the air conditioning system in your 2002 Dodge Caravan is staying on even when the A/C button is turned off, and you suspect a small refrigerant leak from your radiator, there may be a couple of issues at play.
A/C System Leak: If there is a refrigerant leak in the A/C system, it can cause the A/C compressor to run continuously to try to maintain the set temperature. This can happen even when the A/C button is turned off. When the A/C system is low on refrigerant, the low-pressure switch may not function correctly, keeping the compressor engaged.
A/C Control Module or Blower Motor Resistor Issue: The A/C system in your Caravan may be electronically controlled by an A/C control module. If there is an issue with this module or the blower motor resistor, it can cause the A/C system to behave abnormally, including staying on when it's supposed to be off.
Defrost Mode Activation: On some vehicles, the A/C compressor is automatically engaged when the defrost mode is selected. This is because the A/C system helps to dehumidify the air, which helps clear the windshield more effectively. So, if you have the climate control set to defrost, the A/C compressor may run, regardless of the A/C button's position.
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Friday, July 27th, 2007 AT 6:54 PM
