H99

Indoor Heat Exchanger Freeze Protection

Description

The indoor unit's heat exchanger is too cold, risking ice formation.

Appliance Error Codes Details

Error Code
H99
Error Name
Indoor Heat Exchanger Freeze Protection
Appliance Type
air_conditioner
Brand
Panasonic
Severity
medium

Additional Troubleshooting

1. Clean the air filters. 2. Ensure airflow is not obstructed. 3. Check refrigerant levels (requires a technician).

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Verified by: Pavel Volkov
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