17.5.11. Tank Booster Heater OLP Abnormality (H91)
Malfunction Decision Conditions:
During operation of tank booster heater, and tank booster heater OLP open circuit.
Malfunction Caused:
1. Faulty connector connection.
2. Faulty tank booster heater overload protector (OLP).
3. Faulty indoor unit PCB (main).
Abnormality Judgment:
Continue for 60 seconds.
96