heater doesn’t blow on high setting
Thread Starter
Newbie
Joined: May 2019
Posts: 11
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From: Northern Colorado
Year: 1996
Model: Cherokee (XJ)
Engine: 4.0
96 xj classic. the high setting has worked all year with the ac and heat but just this week the high setting won’t turn on. thoughts?
Old fart with a wrench
Joined: Nov 2010
Posts: 14,398
Likes: 741
From: Manlius, east of Syracuse, NY
Year: 2000 XJ Sport & WJ Laredo
Model: Grand Cherokee (WJ)
Engine: 4.0L
PatHenry has it right, although it could be the high speed tap on the resistor. The fan motor is hot-wired and the resistor taps form the ground paths thru various positions of the speed selector switch. Sometimes the high amp draw melts the resistor connector causing loss of different speeds.
'96 have a very bad design for fan power, all goes thru all switches and wires. I intend to relay them out
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