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Old 03-27-2002, 12:26 PM
Arthur Dalton Arthur Dalton is offline
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Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,777
Your '91 has the newer 2 wire thermistor circuit [ 105-107 C cut-in temp. Approx. 265 ohm]
An added note.
If the low speed fan works by jumpering the a/c pressure switch with a/c on, then it is advisable to check freon level, as a low level will not allow the high side pressure to reach the cut-in pressuer required to trip the switch.

[ in other words, don't codemn the switch until you know the level]
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