Error code reference
Panasonic Air Conditioner Error Code H19
Indoor fan motor mechanism lock
Indoor fan motor mechanism lock — fan motor locked or feedback abnormal (rotation > 2550 rpm or < 50 rpm), occurs 7 times continuously.
First step from the service manual
Turn off power supply and rotate fan by hand to check if it rotates smoothly.
The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.
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- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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