swimmax 07 - Troubleshooting; Error Code Display on Controller

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8.Troubleshooting
8.1 Error code display on controller
Malfunction
Error code
Reason
Solution
Inlet water temperature
sensor failure
PP1
The sensor in open or short
circuit
Check or change the sensor
Outlet water temperature
sensor failure
PP2
The sensor in open or short
circuit
Check or change the sensor
Heating condenser sensor
failure
PP3
The sensor in open or short
circuit
Check or change the sensor
Gas return sensor failure
PP4
The sensor in open or short
circuit
Check or change the sensor
Ambient temperature
sensor failure
PP5
The sensor in open or short
circuit
Check or change the sensor
Temperature difference
between water inlet and
outlet is too much
PP6
Water flow volume not
enough ,water pressure
difference is too low
Check the water flow volume,
backwash filter & check baskets
Cooling outlet water
temperature is too low
PP7
Water flow volume is not
enough
Check the water flow, backwash
filter & check baskets
First grade antifreeze
protection in Winter
PP7
Ambient temperature or water
inlet temperature is too low
Water pump will run
automatically for first grade
antifreeze
Second grade antifreeze
protection in Winter
PP7
Ambient temperature or water
inlet temperature is too low
Heat pump will start heating for
second grade antifreeze
Cooling condenser sensor
failure
PP8
The sensor in open or short
circuit
Check or change the sensor
High pressure protection
EE1
1. Refrigerant is too high
2. Air flow is not enough
1. Discharge redundant
refrigerant from HP gas
system
2. Clean the air exchanger
Low pressure protection
EE2
1. Refrigerant is low
2. Water flow is not enough
3. Filter jammed or pump
jammed
1. Check if there is any gas
leakage ,re-fill the refrigerant
2. Clean the air exchanger
3. Check filter & pump
Flow switch closed
EE3 or ‘ON’
Low water flow, wrong flow
direction, or flow switch failure.
Check if the water flow is enough
and flow in right direction, or
check flow switch itself.
Power supply connections
wrong (for 3 phase unit)
EE4
Wrong connection
Check the connection of power
cable
Inlet and outlet water
temperature difference
malfunction
EE5
Water flow volume is not
enough ,water pressure
difference is too low
Check the water flow rate,
backwash filter & empty baskets
Communication failure
EE8
Wire connection is not good
Check the wire connection