Heat Pump Water Heater
-
5
0 Hz ( R134a)
4
6
1
8
.
Troubleshooting
29
Comp Phase is Over-Current.
Call our Technical Support
Center.
Use Elements Only
32
Discharge pipe is overheated.(105°C)
41
Discharge pipe Temp sensor is not
working.
46
Suction Pipe Temp sensor is not working.
61
Cond. Pipe Temp is High.(65°C)
65
Heat sink Temp senor is not working.
67
BLDC motor fan is locked.
DF
No or not enough water in tank.
Fill water heater with water.
Open all hot water faucets
until water flows with a full
stream.
OFF
EC
ECO is tripped.
Disconnect all power to
water heater.
See “Safety Controls” section.
Call our Technical Support
Center.
OFF
H1
Water Temp is too High.
Call our Technical Support
Center.
OFF
H2
L1
Water Temp is too Low.
Call our Technical Support
Center.
OFF
L2
Water Temp is too low or upper tank
Temp sensor is not working.
IC
ICCP is not functioning
Call our Technical Support
Center.
OFF
Code
Contents
Corrective Action
Operating status
1
Ambient Temp sensor is not working. Call our Technical Support
Center.
Use Elements Only
4
Condensate drain is blocked.
Clean Condensate drain.
See “Condensate Drain
Maintenance” section.
Use Elements Only
5
PCB Communication error.
Call our Technical Support
Center.
Use Elements Only
6
Lower tank Temp sensor is not
working.
Call our Technical Support
Center.
OFF
9
EEPROM error.
Call our Technical Support
Center.
Use Elements Only
12
Mid pipe Temp sensor is not working.
19
Upper element is not working.
Call our Technical Support
Center.
Use Heat Pump Only
20
Lower element is not working.
21
DC Peak (IPM Fault).
Call our Technical Support
Center.
Use Elements Only
22
CT 2 (Max, Current).
23
DC Link Low/High Volt.
26
DC Comp Position Error, LOCKIG.
27
PSC Fault.
Error Code