Blower motor shuts off when switched to high
#1
07-14-2018, 12:45 PM
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Blower motor shuts off when switched to high
2001 Ram van 3500. Hvac relay burnt up shutting ac down. Replaced it. Works fine except when switched to high. It then shuts down. I replaced blower resister, high speed blower fuse and blower switch. Same thing. Works fine until I switch to the highest setting. Then it completely shuts off. What gives?
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07-14-2018, 03:53 PM
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2001 Ram van 3500. Hvac relay burnt up shutting ac down. Replaced it. Works fine except when switched to high. It then shuts down. I replaced blower resister, high speed blower fuse and blower switch. Same thing. Works fine until I switch to the highest setting. Then it completely shuts off. What gives?
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07-14-2018, 07:49 PM
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07-15-2018, 11:46 AM
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07-15-2018, 05:57 PM
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07-16-2018, 08:33 PM
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#10
07-22-2018, 12:59 PM
in high speed the position the motor grounds through the high speed relay circuit. all other speeds it goes thru the resisitor. so the fault lies in the relay circuit.
-check the high blower relay in the power dist center
-put your finger on it...has someone turn the key to run, engine off...then turn the blower fan speed switch to high and then any other speed. You should hear and feel the relay click as its engergized.
-if not...check fuse 10 15amp in the left side of dash fuse panel.
-report your findings and if you need to go further, I'll walk you thru it.
-check the high blower relay in the power dist center
-put your finger on it...has someone turn the key to run, engine off...then turn the blower fan speed switch to high and then any other speed. You should hear and feel the relay click as its engergized.
-if not...check fuse 10 15amp in the left side of dash fuse panel.
-report your findings and if you need to go further, I'll walk you thru it.