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AC has no power to pressure switch. Manual Climate Control 900 1995

posted by  Pambill on  Thu Sep 23 13:36 CST 2004
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Hello everyone

AC was not as cool as normal so decided to charge system. I felt the compressor was working before I started the charging process. However, I am not so sure anymore because when I jumped the pressure switch to keep compressor going during the charging process--the compressor did not engage. Could I have damaged something upstream at this time because suddenly I had no incoming power to the pressure switch anymore. Assuming as I said, I had power to that point before I started.

Beyond that question, Where does the power originate for the circuit which goes to the pressure switch. Is it protected by a specific fuse. (can not find a fuse for ac compressor wire (green with red stripe). Is there an ac relay for this model and year. I removed the glove box (no relay behind there)
Is a control which requires turning the knobs considered the manual climate control type. That is what we have.

If you can help with these questions it would be appreciated.

No power to pressure switch


Thanks Bill





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