ac unit works funny

Old 06-07-03, 01:37 PM
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ac unit works funny

my outside unit make noise wen goes on like tap tap it sound like is going off and back on .this happen for about 30 sec then runs perfect. i change the contacts but nothing happen any ideas plese.
Old 06-08-03, 09:18 AM
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those contacts visually, are they going in and out when the unit acts this way? if so you are losing your low voltage signal from the blower unit or tstat. turn the system off, jump red and yellow at the tstat, turn power back on. if problem stops, bad tstat.

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