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My a/c system is all new. The blower started turning off by itself & then turning back on. Now it doesnt come on at all. The compressor turns on. The a/c switch, blower motor, resistor, & fuses have been replaced. When runing the blower to the battery it comes on. Test light shows power to the switch, plug for the blower, & panel. Why doesnt it work?

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Sometimes the a/c has hi and low pressure sensors in the line that will cause this will have to be checked out.

Posted on Oct 08, 2009


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A/c on my 94 geo prizm doesnt work

the first test is to ,
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the Compressor is the fist thing to watch.
here is the starters list. you at 3
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you need to check the charging system voltage if the alternator is not putting out voltage the car is only running off the battery and the battery is not being recharged turning on the ac adds the drain from the cooing fan about 30amps and the blower motor inside the car another 20 amps and also the compressor clutch of 20 amps

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The blower for the A/C keeps going out. The first time this happend,, i thought the AC had gone out,, but then a couple days later it started blowing again. Last week, my battery went out and so i...

Hi, an intermittent blower can be caused by either the switch or the motor itself. To find which it is, try messing with the switch to see if it will misbehave. If not, then the next time it doesn't work, try hitting the motor. Unfortunately your blower is behind the glove box, but maybe you can just pull the glove box past its stops and reach back to hit the motor with your fist. It hitting it makes it start, the motor has a dead spot on the commutator and should be replaced. Please let me know if you have any questions, and thanks for using FixYa.

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1 Answer

Rear blower works but the front blower doesnt

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1 Answer

2000 Jeep Grand Cherokee Blower on A/C Goes On & Off.

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Heat & AC blower (fan) does not come on. Just

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1 Answer

My 2003 Duango has a bad blower motor resistor, I think. The back fans blow fine but nothing in the front unless I kick the little box in the passenger side. Ordered a new one, but now the ac blows hot....

likely two different issues ... the clutch that allows the compresser to operate is controled by several things
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2. the system detects the fact that the front blower is turned on before it will allow the compressor to operate .. could you have damaged the fan speed switch assembly or wire connectors while kicking or changing the resistor ???
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if there is no damage to the blower switch or wiring then i would check the refrigerant pressure .. in r134 systems slow leaks are often seen that cause the pressure to drop to the point where the system cant make up its mind about running. typically the compressor will run for a few seconds at a time .. a steady but fast cycling (not random) you can get a r134 pressure gage at any auto parts shop but you should know how to use it or find someone that does ..

Aug 17, 2009 | 2006 Hyundai Accent

1 Answer

1986 cadillac fleetwood is making me loca(crazy)

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You will have to remove the fanbelt onthe compressor and lossen the pulley better if you can remove it, it should come out togther with the bearing .
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May 10, 2009 | 1986 Cadillac Fleetwood

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