21
8. TROUBLESHOOTING
If these solutions, below, do not work, contact your dealer.
Do not attempt to repair the heater yourself.
Failure
Reason
Solution
Swimming
Pool Heat
Pump Does
Not Run
Main power off
Wait for the power to be
restored
Power switch
is off
Turn on switch
Fuse burnt
Replace fuse
Circuit breaker
tripped
Turn circuit breaker back on
Heat Pump
Runs but
Does Not
Heat
Air inlet blocked
Remove obstructions
Air outlet
blocked
Remove obstructions
3-minute
protection
Please wait past 3 minutes for
warming to start
Temp set too
low
Set temperature setting
Table G. Common Faults
Fault Codes
Failure Code
Failure Description
E1
High pressure protection
E2
Low pressure protection
E3
Low water pressure protection
E4
Single phase unit: loose wire terminal at
PROT2 on the PC board
Three phase unit: 3 phase sequence
protection
P1
Pool water temp sensor failure
P2
Exhaust temp sensor failure (cooling coil
temp for heat and cooling models only)
P3
Heating coil pipe temp sensor failure
P4
Gas return temp sensor failure
P5
Air temp sensor failure
E6
Compressor exhaust overload protection
212°F (100°C) (Heating model only)
P7
When air temp <32°F (0°C), the unit is in
auto-stop protection mode, or anti-freeze
mode (not a failure)
HEAT flashing Defrosting (not a failure)
Table H. Fault Codes - On/Off Models Only
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 (only for 3-phase heaters)
5
E5
Outdoor power supply abnormality protection
6
E6
Water temp difference between in/out too
high (insufficient water flow protection)
7
E7
Low outlet water temp protection
8
E8
High exhaust temp protection
9
E9
Compressor over-heat protection
10
EA
Outer coil over-heat protection
11
Eb
Ambient temp protection (too high or low)
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
Coil temp sensor failure
22
P9
Current sensor failure
23
PA
Auto-start failure
24
F1
Compressor drive module failure
25
F2
PFC module failure
26
F3
Compressor start failure
27
F4
Compressor running failure
28
F5
Compressor module over-current protection
29
F6
Compressor module over-heat protection
30
F7
Current protection
31
F8
Coil over-heat protection
Table I. Fault Codes - Inverter Models Only
6100.64_Crosswind.indd 21
11/26/2019 4:16:49 PM