Air Conditioner Issues
Various topics on Air Conditioner Issues:
|From Mark and Dale Bruss (Mark):
When the air conditioner Monitor Module senses the Freon level is too low, the Red LED will flash and the compressor clutch will be disengaged. The module will re-engage the compressor clutch every couple of minutes to test the Freon level and then disengage.
If you want to add Freon, you could just wait for the compressor clucth to engage every couple of minutes until the Freon level gets high enough that the Monitor Module keeps the compressor clutch engaged.
Or you can ground the control signal line in the two contact plug going to the compressor which will force the compressor clutch to stay engaged. Unground the signal line every so often to see how the progress of refilled the Freon is going. When the Monitor Module keeps the compressor clutch engaged, you are making progress.
Note: you should have the dash and sleeper AC to to maximum.
Even when you have the Freon at the level you want, the Monitor Module LED will still be flashing Red. To turn off the flasshing Red LED, you turn ignition swich on and off four times in one second intervals.