AC condenser fan - AC Auto Repair Help Forum


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AC condenser fan

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Auto Repair Home>> Automotive Repair>> AC Auto Repair Help Forum

me2amjw
Novice

Sep 14, 2019, 11:51 AM

Post #1 of 3 (2584 views)

AC condenser fan	Sign In

On a 2001 Tracker is the AC condenser supposed to run anytime the AC is on, or does a certain temp have to be reached before it comes on?

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Sep 14, 2019, 11:58 AM

Post #2 of 3 (2580 views)

Re: AC condenser fan	Sign In

Some run with just A/C requested, defroster, defog also. Some detect Compressor clutch is engaged. Some will use high pressure switch to determine pressure is high enough that it should need cooling more and fan speed.
Some may quit also should be thru high pressure that air speed is enough you don't need a fan at all.
Wish I could peg which of all those this could have.
Most may be more help: If compressor is engaged I think this one would keep the fan(s) going all the time. If not when not moving just to check and see it there is something not right it should need to for a normal system,

T

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 14, 2019, 12:46 PM

Post #3 of 3 (2572 views)

Re: AC condenser fan	Sign In

The PCM will ground the condenser fan relay coil under any of the following conditions:
^ The A/C system is operating.
^ The ECT is 110°C (230°F) or higher indicating an overheating condition.
^ The PCM detects an ECT sensor malfunction.

So, if you unplug the ECT, the fan should come on.

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