Hi friends
Yesterday my air conditioner's fan stopped suddenly.
I disassembled it...


Here what's happening:
- Connected fan directly to battery, fan working ok!
- Compressor dont turns on with all wires from fan and rheostat connected, (A) (B) (C) (D) howhever if i unplug (A) compressor starts. If i plug (A) again and then unplug (C) compressor starts .
-Compressor also starts when the fan "wants to work", yes, it works sometimes, but i dont know if it is because of the faulty rheostat or because i shake the wires and it solves some kind of bad contact. I really dont know. But in these "times" when all is connected and fan "wants to work normally", compressor starts and all works ok.
- Orange and black wire plug ( A) has ALWAYS 12v, so no bad contact. Letter (D )plug has variable voltage from 0 to 4,5v as i adjust fan's speed in the control panel.
- (B) and (C) plugs and corresponding wires are ok, tested both.

Opinions please....faulty rehostat? Can it be faulty and work sometimes and others do not? Can this cause an intermittent fault?

Thank you so much

(i might have swaped (B) and (C) plugs but that only inverts the rotation of the fan, so this is not THE problem)

images : postimg.org/gallery/8ci1t49g/5f204515/

How is the charge?
When was the A/C last serviced?

www.autoacforum.com

Charge is ok, when the fan stopped i was driving with ac on and it was fresh.
the problem here is the fan doesnt work even in heating mode (compressor off) , so i think the problem is in the resistor pack that controls the fan and should work with some type of pulse with modulation module that has come to the end of its life... Tomorrow im going to try another one.

Re: Fiat Linea Air conditioner Fan/blower problem

kosteau911 said:

Charge is ok, when the fan stopped i was driving with ac on and it was fresh.

Click to expand...

Even with a low charge it may feel OK.
An average car holds about 600-700 grams R134A.
An average loss of about 10% annually is considered normal, so in about 4-5 years, half the charge may be gone, and not long after that, suddenly, the low charge switch will prevent to A/C from running.

ok, i understand that, but shouldnt the heater blower work even with ac off?
example: i enter the car, rotate the key without starting engine, turn climate on and the fan works normally. this was its normal working mode, and now it doesnt do that. I plugged the fan directly to the battery and it worked, so i think the problem is from its control module.