Manuals through 2025 now available!
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LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
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lemon-manuals.org.ua
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Compressor Clutch Relay: Testing and Inspection
Fig. 32 Typical clutch & fan relay:
1.
Check for continuity between terminals 3 and 4,
Fig. 32. There should no continuity.
2.
Connect a 12 volt battery across terminals 1 and 2. There should be continuity between 3 and 4.