8.1 Error code display on LED wire controller
Malfunction
Inlet water temperature sensor
failure T1-TH6
Outlet water temperature
sensor failure T2-TH5
Heating piping sensor failure
T3-TH2
Gas return sensor failure
Ambient temperature sensor
failure T5-TH1
Exhaust piping sensor failure
T6-TH3
Antifreeze protection in Winter
Low ambient temperature
protection
Piping temperature too high
protection under cooling mode
T3-TH2
T2-TH5 water temp. Too low
protection under cooling mode
High pressure failure TS4
8.
8.
8.
Troubleshooting
Troubleshooting
Troubleshooting
Error code
1. The sensor in open or short
PP01
circuit
2. The wiring of sensor is loose
1. The sensor in open or short
PP02
circuit
2. The wiring of sensor is loose
1. The sensor in open or short
PP03
circuit
2. The wiring of sensor is loose
1. The sensor in open or short
PP04
circuit
2. The wiring of sensor is loose
1. The sensor in open or short
PP05
circuit
2. The wiring of sensor is loose
1. The sensor in open or short
PP06
circuit
2. The wiring of sensor is loose
Ambient temperature or water
PP07
inlet temperature is too low
1.Beyond the scope of using
PP08
environment
2. Sensor abnormality
1. Ambient temperature is too
high or the water temperature is
PP10
too high in cooling mode
2. Refrigeration system is
abnormal
1. Low water flow
PP11
2. T2-TH5 temperature sensor
abnormal
1. Ambient temperature is too
high
2. Water temperature is too high
EE01
3. Water flow is too low
Fan motor speed is abnormal or
fan motor has damaged
- 41 -
Reason
1. Check or change the sensor
2.Re-fix the wiring of the
sensors
1. Check or change the sensor
2.Re-fix the wiring of the
sensors
1. Check or change the sensor
2.Re-fix the wiring of the
sensors
1. Check or change the sensor
2.Re-fix the wiring of the
sensors
1. Check or change the sensor
2.Re-fix the wiring of the
sensors
1. Check or change the sensor
2.Re-fix the wiring of the
sensors
Normal protection
1. Stop using, beyond the scope
of using
2.Change the sensor
1. Check the scope of using
2. Check refrigeration system
1. Check filtration pump and
waterway system
2. Change T2-TH5 temperature
sensor
1. Check the water flow or
filtration pump
2. Check the fan motor
3. Check and repair the piping
system
Solution