1991 Chevrolet G20 heater fan are switches on but nothing happens, ?? A cause?
heater fan are switches on but nothing happens, ?? A cause?
What is your question?
What would cause the fans/fan switches not to work? I have checked fuses though fine. I do not know what the bigger silver looking type fuse, if it is one, what it is for. It does say HTR on the panel above it. would that be for the heater. The Chilton manual show the fuse panel on the kick panel, but it's on the forward wall to the left of the brake pedal. This is a 1991Chev. G20 Turtle top van. Would this be caused by a relay switch, a blower motor failure, or? I hear nothing at all when I switch it on. Yet I think the rear aux. air fan works. 1 1/2 yrs ago I had the air conditioning unit converted to the legal free-on unit.The fan worked fine after. But winter came couldn't use defrost or heater. I just want to know what most logical issue might be. Sometimes I have thought I heard fan but nothing comes from vents. I could just be hearing a motor noise. I would appreciate any help as to not to have unnecessary costs.? on the silver item Thank you
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RepairPal Certified shops can diagnose and repair your 1991 Chevrolet G20. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Hello, the fan alone could be faulty (front main fan), the blower motor resistor, blower relay, switch, wiring or connector could have an issue. It's a matter of having the system tested thoroughly front to back -- blower and fan speed system alone -- to determine what the cause of failure is.
