97 cruiser, 320K miles now. AC running fine, put in a new compressor, evaporator, etc. etc. about 6 months ago, AC working great. Heat working great.
Lately I have been having an intermittent issue whereby the controller lights go from on to low, medium, high, feet, defrost, etc. with no issue, I can tell there is an electrical connection by sounds behind the unit. But no AC. No heat, nothing. Compressor sounds like it turns on, but no air flow. Engine temperature has no effect on it, might not kick in on cold start, might kick in with engine at 186. Very random, perhaps every 30 or 40 starts it will do it. Might do it twice. Then it works again. I'm wondering if it is a controller issue but I doubt it. I feel like it's a fan issue. Occasionally I will hear a fan sound in the dash like a straw is in the fan rattling sound. Then it stops.
Any thought as to what it might be? Controller or fan? I'll admit, haven't looked at the FSM yet, only looked at a few threads and they seemed to be unrelated.
Lately I have been having an intermittent issue whereby the controller lights go from on to low, medium, high, feet, defrost, etc. with no issue, I can tell there is an electrical connection by sounds behind the unit. But no AC. No heat, nothing. Compressor sounds like it turns on, but no air flow. Engine temperature has no effect on it, might not kick in on cold start, might kick in with engine at 186. Very random, perhaps every 30 or 40 starts it will do it. Might do it twice. Then it works again. I'm wondering if it is a controller issue but I doubt it. I feel like it's a fan issue. Occasionally I will hear a fan sound in the dash like a straw is in the fan rattling sound. Then it stops.
Any thought as to what it might be? Controller or fan? I'll admit, haven't looked at the FSM yet, only looked at a few threads and they seemed to be unrelated.