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Old 11-11-2008, 12:17 PM
Arthur Dalton Arthur Dalton is offline
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Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
There are two fan circuits High and Low

The high fan comes On @ 105C..that is the fan sensor that you unplugged . It defaults to high fan when unplugged, verifying that circuit.
With that test, if both fans have to come on..if only one does, you have a bad fam motor.
If the low fan [ a/c ] does not come On with a/c on a hot ambient condition, then the refrig level may be slightly Low.
The test for low fan is to jumper the sensor at the drier ..the sensor that has the pigtail wires , NOT the spade connectors. If YES, then low refrig is most likely..if NO, then check the fuse for Low Fan if the relay is clicking w/jumper

The 12v to resistor test is with a jumper wire from battery pos terminal to resistor.. One side of R will give you low fan , the other will be high fan. That jumper test by-passes all sensors and relays, so it is fan motors test only
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A Dalton

Last edited by Arthur Dalton; 11-11-2008 at 07:17 PM.
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