Hayward Pool Products HP40B Guide De L'utilisateur page 16

X. TROUBLESHOOTING
NO. Failure code
1
E 1
2
E 2
3
E 3
4
E 4
5
P 1
6
P 2
7
P 3
8
P 4
9
P 5
10
E 6
11
P 7
12
"HEAT" flashing
16
Failure description
High pressure protection
Low pressure protection
Low water pressure protection
Single phase machine: failure connection due to loose
wire terminal of PROT2 on the PC board
Pool water temp sensor failure
Exhaust temp sensor failure(cooling coil temp for heat
& cool model)
Heating coil pipe temp sensor failure
Gas return temp sensor failure
Air temp sensor failure
Compressor exhaust overload protection (>110 ℃ )
(heating model only)
When air temp < 32 ℉ , auto stop protection or
anti-frozen protection（not failure）
Defrosting (not failure)