INSTALLATION & INSTRUCTION MANUAL
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X 19 | X 24 SWIMMING POOL HEAT PUMP UNIT
sunloverheating.com.au
20
5. MAINTENANCE AND INSPECTION
5.2 Trouble Shooting Guide
Malfunction
Display
Cause
Solution
Water inlet temp. Sensor failure
P01
The water inlet temp. Sensor
is open or short circuit
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