Maintenance And Inspection; Maintenance; Trouble Shooting - Hydro-Pro+ Premium 22M Manuel D'installation Et D'utilisation

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 prolonged period of no usage.

5.2. Trouble Shooting

Malfunction
Water inlet temp. Sensor failure
Water outlet temp. Sensor failure
Coil sensor failure
Ambient sensor failure
Temp. Differential between water-
in and water-out is too large
Anti freezing under cooling mode
The first time freezing protection
in winter
The second time freezing
protection in winter
High pressure protect
Low pressure protect
Flow switch failure
3times water-in and water-out
temp. difference protection in 30
minutes
Defrosting
Communication failure
Guide
LCD controller
PP1 The sensor is open or short circuit
PP2 The sensor is open or short circuit
PP3 The sensor is open or short circuit
PP5
Water flow volume not enough,
PP6 water pressure difference is too
low
PP7
Ambient or inlet water temp. is too
PP7
low
Ambient or inlet water temp. is too
PP7
lower
The sensor is open or short circuit
HP
The sensor is open or short circuit
LP
Water flow volume not enough,
Light water pressure difference is too
low
EE5
Defrost code
display
LED controller and the PCB
EE8
connection failure
Reason
Check or change the sensor
Outlet water is too low
Water flow rate not enough
12
Resolution
Check or change the sensor
Check or change the sensor
Check or change the sensor
Coil sensor failure
Check the water flow volume or
system obstruction
Check the water flow volume or
outlet water temp. Sensor
Check trough the high pressure
switch and the gas system
pressure to judge whether the gas
loop is blocked or the freon is
suitable
Check trough the high pressure
switch and the gas system
pressure to judge whether there is
leaking or the freon is not enough
Check the water flow volume,
water pump and flow switch is
failure or not
Check the water flow rate, or
water system is jammed or not
Check the wire connection