Gree KFRS-9/Na-M - E. Error Code

Usage and Installation Manual for Combination Heat Pump Water Heater
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E． Error code
Error code Meaning Reset mode
E1 High-pressure protection of compressor Manual reset
E2 Antifreeze protection of system Auto reset
E3 Low-pressure protection of compressor Manual reset
E4 Exhaust temp protection of compressor Manual reset
E5 Overload protection of compressor Manual reset
E6 Overload protection of water pump Manual reset
E7 Error of water-flow switch Manual reset
E8 Overload protection of fan motor Manual reset
E9 Anti high temp protection of system Auto reset
F1 Error of anti-freezing thermal sensor Auto reset
F3 Error of defrosting thermal sensor Auto reset
F5 Error of exhaust thermal sensor Auto reset
F7 Error of outdoor ambient thermal sensor Auto reset
F8 Error of water-inlet thermal sensor Auto reset
F9 Error of water-outlet thermal sensor Auto reset
Ec Communication error Auto reset
★ Auto reset: It means that the unit will resume running automatically after error is cleared and
compressor stop protection time is satisfied.
★ Manual reset: It means manually press On/Off to clear error code first, and then press On/off to
make the unit operate.
★ When low-pressure protection is detected for 3 times in 30 successive min, reset mode will
switch to manual mode from auto mode.
When overload of compressor and fan motor is detected for 3 times in 30 successive min, reset
mode will switch to manual mode from auto mode.