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Deep Technical Chapters · Electrical, Controls & Commissioning
Electrical Diagnosis
Technician
Follow the circuit to find the open, not just the dead component. Safe, methodical meter work.
A large share of refrigeration faults are electrical or control-related. Read the circuit, follow the path, find the open — don't just replace the dead part.
Method
- Supply → control → contactor → load
- Find where the circuit is open
- Test, don't guess
- Check capacitors, contactors, overloads, sensors and boards
Field Rules
- 01
"Follow the circuit. The open is where the power stops."
