H P 1 0 0 0 / 1 4 0 0 / 1 7 0 0 G r e e n
I n s t a l l a t i o n a n d u s e r m a n u a l
P a g e
1 9
/ 4 0
V e r s i o n : 0 1 / 2 0 2 1
HEAT
PUM
P
MICR
OWELL HP
5.
TROUBLE SHOOTING FOR COMMON FAULTS
5.1
Repairing Guidance
WARNING:
a.
If repair or scrap is required, pls contact authorized service center nearby.
b.
Requirements for Service Personnel
c.
Any person who is involved with working on or breaking into a refrigerant circuit should hold a
current valid certificate from an industry‐accredited assessment authority, which authorizes
their competence to handle refrigerants safely in accordance with an industry recognized
assessment specification.
d.
Do not attempt to work on the equipment by yourself. Improper operation may cause danger.
e.
Strictly comply with the manufacturer's requirements when charging R32 gas and equipment
maintenance. This chapter focuses on special maintenance requirements for swimming pool
heat pump with R32 gas. Please refer to the technical service manual for detailed maintenance
operation.
f.
Vacuumize completely before welding. Welding can only be carried out by Professional
personnel in service center.
5.2
Failure solution and code
Protection/Error
Code
Description
Trouble shooting
P3
Water Inlet
Temp. Sensor
Failure
Check the connection, change the sensor if necessary.
P4
Water Outlet
Temp. Sensor
Failure
Check the connection, change the sensor if necessary.
P1
Coil Temp.
Sensor Failure
Check the connection, change the sensor if necessary.
P7
Ambient Temp.
Sensor Failure
Check the connection, change the sensor if necessary.
P2
Exhaust Temp.
Sensor Failure
Check the connection, change the sensor if necessary.
E4
System High
Pressure
Failure
1. Detect the inlet/outlet water temperature.
2.Clean the water exchanger or water filter.