14.4.11
H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry)
Malfunction Decision Conditions
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Freeze prevention control takes place (when indoor pipe temperature is lower than 35.6°F)
Malfunction Caused
•
Clogged air filter of the indoor unit
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Dust accumulation on the indoor unit heat exchanger
•
Air short circuit
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Detection error due to faulty indoor pipe temperature sensor
•
Detection error due to faulty indoor unit PCB
Troubleshooting
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