Advanced Heat Pump Diagnosis
Prove reversing valve and defrost faults, set charge in any season, troubleshoot inverter systems, and set up auxiliary heat and dual-fuel logic.
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Heat Pump Service
The parts of refrigerant work that only apply to heat pumps: reversing valves, defrost cycles and boards, auxiliary and emergency electric heat strips, cold-climate variants, and verifying charge in heating mode when subcool isn't availa...
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