W'eau 14659, Installation & Operation Manual

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9. Error codes & Solutions
Code Description Potential reasons Solutions
E03 Water flow protection
Insufficient water flow
Check the water circuit system, the opening
of by-pass kits, the running of water pump
Water flow switch disconnected
Check the wiring and reconnect water flow
switch
Water flow switch defective Change a new one
E04 Antifreeze protection
Ambient/Inlet water temp. is too
low and the unit is on standby The unit will be re-started when the
ambient/inlet water temp. goes up.
E05 High pressure protection
Insufficient water flow
Check the water circuit system, the opening
of by-pass kits, the running of water pump
Ambient/ Water temp. is too high
Fan motor speed is abnormal or fan
motor has damaged
Check the fan motor
Excess refrigerant gas Readjust the refrigerant volume
High pressure switch disconnected
or defective
Reconnect or replace high pressure switch
Piping system jammed Check the piping system
E06
Low pressure protection
Bad ventilation
Check the installation circumstance. Clean
the evaperator. Check the running situation
of fan.
Low pressure switch disconnected
or defective
Reconnect or replace low pressure switch
Gas leakage (Check the gauge)
Detect the leakage point and make the
maintainence
Fan motor speed is abnormal or fan
motor has damaged
Check the fan motor
EEV blocked or piping system
jammed
Check the piping system
E09
Connection failure between PCB
and controller
Bad wire connection Check the wiring
Defective controller Change a new controller
Defective PCB Change a new PCB
E10
Communication failure between
PCB and driver module
Bad wire connection Check the wiring
Defective PCB Change a new PCB
E12
Exhause temp. too high
Insufficient water flow
Check the water circuit system/ water flow
switch
Lack of gas Check if there is a gas leakage
Piping system jammed Check the piping system
Exhause piping temp. sensor
(Purple connector) detective
Change a new sensor
E15 Inlet water temp. sensor (Blue Sensor disconnected or defective Reconnect or replace sensor