I am not getting cold air. The temp control wheel works for hotter air and cooler but no ac.
The compressor clutch engages and works continuously when the dash climate control is turned on and there is 134 in the system with a guage reading of 45 PSI.
This car was converted by a dealer to r 134 approx 11 years ago. Also heat etc and vents appear to be working fine when changing contol setting. Any help would be appreciated of where to start.

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Walter Sawczak
1990 300 E
1993 Lincoln Mark VIII
1983 Jaguar XJ6