SWIMMING POOL HEAT PUMP
SWIMMING POOL HEAT PUMP
Protection/Failure
Standby status
Running status
Water flow switch failure
Wire
controller
Running
/
Failure
indicator
EE03
Off
On
☆☆☆☆☆☆☆☆●
(flashes 8 times & stops)
Defrosting
No display
☆☆☆☆☆☆☆☆……
(flashing continuously)
Check
Solution
Inlet water temp. sensor failure
PP01
☆●
(flashes once & stops)
1. Check
the
connection of inlet
water sensor
.
2. Check if the sensor is broken
.
1. Reconnect the sensor.
2. Replace the sensor
.
Ou tlet wa ter temp . sensor failure
PP02
☆☆●
(flashes twice & stops)
1. Check the connection of inlet
water sensor
.
2. Check if the sensor is broken
.
1. Reconnect the sensor.
2. Replace the sensor.
Coil 1 temp. sensor failure
PP03
☆☆☆●
(flashes 3 times & stops)
1. Check the connection of inlet
water sensor
.
2. Check if the sensor is broken
.
1. Reconnect the sensor.
2. Replace the sensor.
PP04
Coil 2 temp. sensor failure
☆☆☆☆●
(flashes 4 times & stops)
1. Check the connection of inlet
water sensor
.
2. Check if the sensor is broken
.
1. Reconnect the sensor.
2. Replace the sensor.
Ambient temp. sensor failure
☆☆☆☆☆●
(flashes 5 times & stops)
PP05
1. Check the connection of inlet
water sensor
.
2. Check if the sensor is broken
.
1. Reconnect the sensor.
2. Replace the sensor.
1. Check if there is any jam in the
water circuit
.
2. Check if the water flow volume
is enough.
3. Check if the water pump has
failed
to
work
.
Protection for over-big temp.
difference between water
inlet & outlet
PP06
On
1. Remove the jam.
2. Increase the water
flow volume.
3. Repair or replace the
water pump.
Ant i-freeze pr ot ection for coo ling
PP07
On
Refer to PP06.
Refer to PP06.
1. Check if wiring connection of
flow switch is in position.
2. Check if enough water flow.
3. Check if flow switch is broken.
4. Check if water pump failure.
1. Reconnect the wiring.
2. Increase enough water
flow.
3. Replace flow switch.
4. Repair or replace water
pump.
High / Low pressure protection
☆☆☆☆☆☆☆☆☆●
(flashes 9 times & stops)
EE04
1. Check if
high
or
low
pressure
switch
is
broken.
2. Check if lack of refrigerant
.
(
For low pressure
)
3. Ambient temp. and water inlet
temp. is too low. (For low pressure
)
4. Check if there
'
s jam in water
circuit or water flow n ot enough.
(For high pressure)
5. Check if refrigerant circuit
jam. (For high pressure)
1. Replace new pressure
switch.
2. Charge enough
refrigerant.
3. Adjust less
water
flow
.
4. Remove jam or
adjust bigger water
flow.
5. Send heat pump to
dealer for detailed
check.
Failure of over-big temp.
difference between water
inlet & outlet
EE05
☆☆☆☆☆☆☆☆☆☆●
(flashes 10 times & stops)
1. Check if there is enough water
flow volume.
2. Check if inlet /
outlet water
temp
.
sensor
failure
.
1. Adjust bigger
water flow.
2. Replace related
sensor.
Communication failure
EE08
（
available in wire controller
）
Check the connection
Reconnect the
connection wire.
Winter anti-freeze protection
Ⅰ
PP07
Off
No action required
Winter anti-freeze protection
Ⅱ
PP07
Off
No action required
7.3 Overview of failure code on display ( LCD CONTROLLER)
Notes:
After water pump starts for one minute, it starts to sense water inlet & outlet temperature.
When temp. difference is over 13 degree for continuous 10 seconds, PCB will stop heat pump and controller
displays PP06;after 3 minutes, heat pump restarts, if in 30 minutes the heat pump stops 3 times for PP06,
controller displays EE05, and heat pump would only restart unless is disconnected to electricity and connect
again. When water pump is not working or in heating mode, system will not inspect protection for over-big
temp. difference between water inlet and outlet(PP06).
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