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10 TROUBLESHOOTING
Code
Failure
P01
Bottom sensor failure
P02
Top sensor failure
P04
Ambient sensor failure
P034
Solar sensor failure
P05
Pipe sensor failure
P07
Suction sensor failure
P09
E01
High pressure protection
E02
Low pressure protection
E03
Over heat protection
E08
Communication failure
Reason
The temp. sensor is open or short circuit
The temp. sensor is open or short circuit
The temp. sensor is open or short circuit
The temp. sensor is open or short circuit
The temp. sensor is open or short circuit
The temp. sensor is open or short circuit
The exhaust pressure is high , high pressure
switch action
The suction pressure is low, low pressure
switch action
Water flow volume not enough; electrical
heating working without water
Communication failure between remote wire
controller and main board
22
Solution
Check or change the bottom temp. sensor
Check or change the top temp. sensor
Check or change the ambient temp. sensor
Check or change the ambient temp. sensor
Check or change the pipe temp. sensor
Check or change the suction temp. sensor
Check high pressure switch and system
circuit
Check low pressure switch and system
circuit
Check the flow volume
Check the wire connection between
remote wire controller and main board
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