Hayward HP40BEE Installation And User Manual page 16

Failure code
NO. Display
1 E1
2 E2
3 E3
4 E4
5 E5
6 E6
7 E7
8 E8
9 E9
10 EA
11 Eb
12 Ed
13 P0
14 P1
15 P2
16 P3
17 P4
18 P5
19 P6
20 P7
21 P8
22 P9
23 PA
Failure description
High gas pressure protection
Low gas pressure protection
No water flow protection
3 phase sequence protection (only for three phase
machine )
Outdoor power supply abnormity protection
In and out of the water temperature difference is so
much（Insufficient water flow protection）
Protection of low outlet water temperature
Protection of high exhaust temperature
Protection of compressor over heat ( reserved)
Protection of outer coil over heat
Ambient temperature too high/low protection
Two-level antifreeze
Controller communication failure
Water inlet temp sensor failure
Water outlet temp sensor failure
Gas exhaust temp sensor failure
Outer coil temp sensor failure
Gas return temp sensor failure
Inner coil temp sensor failure
Ambient temp sensor failure
Radiator temp sensor failure
Current sensor failure
Auto-restart failure
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