Hayward HP50BEE - Page 16

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