Hydro-Pro Hydro-Pro+Premium 7 - 5 Maintenance and Inspection; Maintenance; Trouble Shooting

17
5. MAINTENANCE AND INSPECTION
5.1. Maintenance
 Check the water supply device and the release often. You should avoid the condition of no
water or air entering into system, as this will influence unit's performance and reliability.
You should clear the pool/spa filter regularly to avoid damage to the unit as a result of the
dirty of clogged filter.
 The area around the unit should be dry, clean and well ventilated. Clean the side heating
exchanger regularly to maintain good heat exchange as conserve energy.
 The operation pressure of the refrigerant system should only be serviced by a certified
technician.
 Check the power supply and cable connection often. Should the unit begin to operate
abnormally, switch it off and contact the qualified technician.
 Discharge all water in the water pump and water system,so that freezing of the water in
the pump or water system does not occur. You should discharge the water at the bottom of
water pump if the unit will not be used for an extended period of time. You should check
the unit thoroughly and fill the system with water fully before using it for the first time after
a
5.2. Trouble Shooting
Malfunction
Display
Canse
Solution
Water inlet temp. Sensor failure
P01
The water inlet temp. Sensor is open or
short circut
Check or change the water inlet temp.
Sensor
Water outlet temp. Sensor failure
P02
The water outlet temp. sensor is open or
short circuit
Check or change the water outlet
temp. Sensor
Ambient temp. Sensor failure
P04
The ambient temp. sensor is open or
short circuit
Check or change the ambient temp.
Sensor
Pipe temp. Sensor failure
P05
The pipe temp. sensor is open or short
circuit
Check or change the pipe temp.
Sensor
Evaporator temp. Sensor failure
P07
The evaporator temp. Sensor is open or
short circuit
Check or change the evaporator temp.
Sensor
High pressure protect
E01
The exhaust pressure is high, high
pressure switch action
Check high pressure switch and
cooling return circuit
Low pressure protect
E02
The suction pressure is low, Low
pressure switch action
Check low pressure switch and
cooling return circuit
Flow switch failure
E03
No water or litter water in water system
Check the flow volume, water pump is
failure or not
Temp. is too much different
between water-inlet and outlet
E06
Water flow volume not enough, Water
system pressure difference is small
Check the flow volume, water system
is jammed or not
Antifreezing under cooling mode
E07
Water flow volume not enough
Check the flow volume, water system
is jammed or not
The primary anti-freezing
protection start.
E19
Ambient temperature is too low
The second anti-freezing
protection start
E29
Ambient temperature is too low
Communication failure
E08
Communication failure between remote
wire controller and main board
Check the wire connection between
remote wire controller and main board