Heater Fan Quit working without warning no smoke no blown fuse.
Replaced heater motor, switch , and what I think were resistors in a package repair kit about 5 months back on 87 240 DL all worked fine untill a couple days ago.I Turned fan off went to turn it back on no fan. Where do I start? 15 below zero need heat.
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Re: Heater Fan Quit working without warning no smoke no...
Oh no, say it isn't so. I'm in the middle of the same task on my 85 model. I just got my parts from IPD, which I hope is not the source of your parts. I would start with the fuses and check for a blown one. Make sure you check closely as they can have fine cracks that can get missed.
Any chance you have a loose wire? - with all that have to come out for the repair it's possible you lost a groundwire connection.
Write back as I will have questions of my own on how you got yours put back together.
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Check heater fuse.
If fuse good - could be a failure of the blower fan motor or blower control switch.
If fuse bad - bad blower fan motor could have blown the fuse.
DO: check fuse, then blower motor.
Pricing: new blower motor: Duralast PM270 $43.99
new heater control switch: Duralast SW229 $46.99 (without
I'd expect your blower resistor to be good - when they fail, the blower only will work on HIGH setting.
Chk for power at the blower motor electrical connector. If no voltage, check the blower motor resistor, its within the blower motor vent (this controls power to the blower motor). Also, in theses vehicles water may have damaged the blower motor itself. Inspect the blower motor for proper function.
Check for a blown heater motor supply fuse,
Check operation of heater motor control relay,
Check operation of fan speed control switch,
Check heater motor speed control resistor pack (usually located in the heater ducting - in the air flow),
Check the heater motor runs if power directly applied to the motor- if not motor may be faulty.
Several possible causes (blown fuse, malfunction in blower speed switch, open ground in blower motor electical circuit, burned out blower motor (brushes), open circuit in blower resistor, etc. Best solution, Take the vehicle into a Hyundai Service Center (dealership), pay the diagnostic fee. They will tell you EXACTLY what the problem is and what's needed to fix it (parts, labor, tax, time-frame, etc.)