24
R
12
Slow
increase of
water
temperature
1. Insufficient refrigerant.
1. Check for leakages, if found, repair and re-charge
refrigerant as per volume specification on label.
2. If no leakage was found, re-charge refrigerant as
per volume specification on label.
2. The heating capacity of the heat pump
is insufficient for the size of the pool.
Increase the size or number of heat pump units.
3. Serious residues/dirt occurred on the
heat exchanger.
Clean the heat exchangers.
4. The evaporator coil is dirty or jammed
and this will affect the heat exchange
efficiency.
Clean the evaporator coil.
5. Poor design of insulation for the pool.
It is recommended to use a pool insulation cover.
6. The length of the pipes is too long
and/or improperly insulated.
1. If the length of the pipes cannot be done, ensure
well insulated piping.
2. Increase the size and number of heat pump units.
13
The
controller
displays
''00''
1. The controller cable damaged or
disconnected.
Reconnect or replace controller cable and wrap it with
insulation tape.
2. PC board damaged.
Replace PC Board.
3. Pool temperature sensor and/or cable
disconnected or damaged.
Reconnect or replace pool temperature sensor and
wrap it with insulation tape.
14
No display
on the
controller
1. Mains power supply is abnormal.
a) The main power supply
cables is disconnected or
damaged.
Reconnect or replace
the mains power supply
cable.
b) The main power supply
voltage is lower than 175V.
Check and ensure that
the mains power supply
cable', length and
thickness, is within the
specifications, if not
replace with thicker
cable to ensure less
voltage drop.
2. PC board power cable is disconnected
or the fuse is burnt.
Reconnect PC Board cable or replace the fuse.
3. PC Board transformer is damaged.
Replace the PC Board transformer.
4. The controller cable damaged or
disconnected.
Reconnect or replace controller cable and wrap it with
insulation tape.
5. PC Board damaged.
Replace the PC board.
15
The fan
does not
operate
1. Fan motor capacitor damaged (under
this circumstance the fan motor will
overheat).
Replace fan motor capacitor.
2. The motor windings has been burnt.
Repair or replace the fan motor.
3. The display is ON but heat pump unit
is not in running mode/ON.
Press the power button and turn On the heat pump
unit.
4. Fan motor relay damaged.
Check and replace if damaged.
5. No fan motor output from PC Board.
Replace PC board.
6. Fan motor cable disconnected or
damaged.
Reconnect or replace fan motor cable.
16
The
compressor
does not
operate
while the fan
is working
1. Compressor damaged (under this
circumstance the compressor motor will
overheat).
Replace compressor capacitor.
2. Compressor connecting cable is burnt. Replace compressor connecting cable.
3. The compressor windings have been
burnt.
Repair or replace the compressor.
4. The compressor is jammed or blocked. Repair or replace the compressor.
5. AC contactor does not work.
a) The AC contactor
winding is damaged or
the contactor is
jammed and cannot
close.
Replace the AC contactor.
