My AC compressor will not start

Trying to find out why my AC compressor doesn't start. I've got a 300 CE-24 with the 124.980 engine. The AC relay is build in to the MAS module. What i have tested so far: Pressure switch has continuity over the terminals = Pressure in the system Putting 12 volts directly on the compressor makes the clutch click What i have tested but seems a bit strange: - There is ground on both pressure switch terminals(12 volts between the terminals and + on the battery). The... My AC compressor will not start

Trying to find out why my AC compressor doesn't start.
I've got a 300 CE-24 with the 124.980 engine. The AC relay is build in to the MAS module.

What i have tested so far:

• Pressure switch has continuity over the terminals = Pressure in the system
• Putting 12 volts directly on the compressor makes the clutch click

What i have tested but seems a bit strange:
- There is ground on both pressure switch terminals(12 volts between the terminals and + on the battery). The...

My AC compressor will not start

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