Failure code
NO.
Failure code Failure description
1 EE 1 High pressure protection
2 EE 2 Low pressure protection
3 EE 3 Low water pressure protection
4 EE 4 A.1 phase machine: failure connection due to
loose wire terminal of PROT2 on the PC
board;
B.3 phase sequence protection.
5 PP 1 Swimming pool heat pump sensor failure
6 PP 2 Exhaust sensor failure
7 PP 3 Coil pipe sensor failure
8 PP 4 Intake pipe sensor failure
9 PP 5 Air temperature sensor failure
10 PP 6 Compressor exhaust overload protection
11 PP 7
When the air temperature ＜ 0℃, auto stop
protection (Not Failure )
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