H19
Panasonic Indoor Fan Motor Lock / Hall Sensor Fault

Indoor unit does not start or stops shortly after starting; H19 displayed.

Advertisements

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Advertisements

Possible Causes

Seized indoor cross-flow fan, Faulty DC indoor fan motor, Faulty fan motor Hall sensor feedback, Obstruction in blower housing

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker before opening the indoor unit.

Steps to check:

  • 1. Remove front cover and filters: Access the indoor blower area.
  • 2. Check for obstructions: Look for foreign objects (plastic bags, insulation, insects) lodged in the cross-flow fan. Remove carefully.
  • 3. Spin the blower: Gently rotate the blower wheel by hand. It should move smoothly without scraping. If stiff or noisy, the bearings may be failing.
  • 4. Inspect fan motor wiring: Ensure the multi-pin connector from the indoor fan motor to the PCB is fully seated and not burnt.
  • 5. Test operation: Restore power and run the fan-only mode. If the fan does not start or starts then stops with H19, the motor or Hall sensor is likely defective.

Replacing the indoor DC fan motor assembly is usually required for H19 and is moderately complex; consider professional service if you are not experienced.

Advertisements

Repair Difficulty

Medium 3/5

Required Part

Indoor Fan Motor
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements