The condenser fan not running will actually cause the opposite to be the problem, the system won't be able to dissipate heat which will cause the evaporator temps to rise, which will cause warmer air. The only way the evaporator could freeze is if there isn't enough airflow from the blower fan (vents). There's a temp sensor in the expansion valve that keeps the evaporator from getting below a certain temperature (38° maybe) so it won't freeze.

 

You certainly sound like a guy that knows his stuff on AC systems, and I have a new problem I'd like to have your opinion on. The condenser fan is still working fine with the jumper wire, but after about 30 minutes or so of running, the AC starts to get warm, musty smelling air.

I'm getting no water in floor board that I can tell, I thought that maybe the drain was possibly plugged up. Possibly low on refrigerant?

 

I doubt that a must smell would be caused by the refrigerant charge unless it was low enough that the A/C shut off. You can check the evap drain by sticking a piece of small rubber tube (I wouldn't use wire and risk hitting something in the hvac box) into the drain hole (on firewall) and see if anything is blocking it.

 

Just curious what kind of vehicle we are working on dodgesonly?

 

It's a 2000 Dakota Sport with a 3.9. So 01 Grand Caravan rules may or may not apply, lol.

Thanks for your help on the other thread though, Tizzy. In fact, thanks to all that posted in these threads, especially in response to my posts😊. It helps greatly when those that are willing share their knowledge do in these forums...and I know it has helped literally save me thousands of bucks in repair bills. So thanks to all helping all the ignoramuses (speaking only personally)... out.

 

Your fan(blower motor) in the heater/ac box should always be on (at least at some speed) when the heater or ac is turned on. If it is not try adjusting the speed, If it works on the higher speeds your fan resistor is bad or possibly the switch. The pressure switches(in the engine compartment) are high and low cut outs for the compressor (if we are talking about the same switches). They shouldn't have any effect on the blower motor.