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4.2 I Error code display
Display
PP01
Faulty inlet water temperature sensor
PP02
Faulty outlet water temperature sensor
PP03
Faulty coil temperature sensor
PP04
Faulty discharge gas temperature sensor
PP05
Faulty ambient temperature sensor
PP06
Faulty cooling condenser sensor
PP07
Winter frost protection
PP08
Ambient temperature protection too low
PP10
Condenser cooling temperature too high
protection
PP11
Water temperature too cold protection in
cooling mode
EE01
High pressure protection
EE02
Low pressure protection
EE03
Water flow rate protection
Possible causes
Sensor disconnected or out of order.
Sensor disconnected or out of order.
Sensor disconnected or out of order.
Sensor disconnected or out of order.
Sensor disconnected or out of order.
Sensor disconnected or out of order.
Ambient temperature or input water
temperature too low.
The ambient temperature is too low.
Sensor disconnected or out of order.
Ambient temperature too high
Refrigerant problem
Water flow too low
Abnormal temperature of d2-TH5
sensor
Ambient temperature too high.
Water temperature too high.
Check the fan speed.
Low-pressure sensor broken.
Insufficient level of refrigerant.
Ambient temperature and input
water temperature too low.
Flow switch incorrectly positioned.
Insufficient water flow.
Broken flow switch.
Faulty filter pump.
Solutions
Reconnect or replace the sensor.
Reconnect or replace the sensor.
Reconnect or replace the sensor.
Reconnect or replace the sensor.
Reconnect or replace the sensor.
Reconnect or replace the sensor.
Check D3 and D1.
Check D3.
Reconnect or replace the sensor.
Check the temperature.
Check the refrigerant.
Check the water flow rate and by-
pass.
Check the refrigerant and d2-TH5
sensor.
Check the water flow rate and by-
pass.
Check the fan.
Check the refrigerant.
Replace the high-pressure sensor.
Add refrigerant.
Send the pump to the retailer for a
detailed inspection.
Re-make the connections.
Increase the water flow rate.
Replace the flow switch.
Repair or replace the filter pump.
EN
21
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