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Problem
Water inlet sensor defect.
Water outlet sensor defect.
De-icing sensor defect.
Exterior temperature sensor defect.
Compressor aspiration sensor defect
The inlet and outlet difference in
water temperature is too high.
Antifreeze Protection
Cold mode
Level 1 antifreeze protection
Level 2 antifreeze protection
High pressure protection
Low pressure protection
Flow detector defect
Communication problem
The compressor will not start
Error codes
Description
The sensor is open or presents a
P01
short-circuit.
The sensor is open or presents a
P02
short-circuit.
The sensor is open or presents a
P05
short-circuit.
The sensor is open or presents a
P04
short-circuit.
The sensor is open or presents a
P07
short-circuit.
Water flow volume is insufficient,
E06
water pressure difference is too low/
too high.
E07
Water outlet quantity is too weak.
Air temperature or water inlet
E19
temperature is too weak.
Air temperature or water inlet
E29
temperature is still too weak.
Pressure of the refrigeration circuit
is too high, or the water flow is too
E01
low, or the coil is obstructed or the
air flow is too weak.
Refrigeration circuit pressure is too
E02
weak, or air flow is too weak or the
coil is obstructed.
Water flow is insufficient or the
E03
detector is in short-circuit or
defective.
Problem with the LED controller or
E08
the PCB connection.
Phase missing or phase order
E08
incorrect
Solution
Verify or replace the sensor.
Verify or replace the sensor.
Verify or replace the sensor.
Verify or replace the sensor.
Verify or replace the sensor.
Verify the water flow, or system
obstruction.
Verify the water flow, or the outlet
water temperature sensor.
Verify the high pressure switch and
the refrigeration circuit pressure.
Verify the water or air flow. Verify that
the flow switch is working correctly.
Verify the water inlet/outlet valve
openings.
Verify the by-pass setting.
Verify the low pressure switch and
the refrigeration circuit pressure to
determine if there is a leak.
Clean the coil surface.
Verify the fan rotation speed.
Verify that there is free air flow to
the coil.
Verify the water flow, verify the
filtration pump and the flow detector
to see if they have any possible
problems.
Check the connection of the NET and
NET 1 cables.
check that the 3 phases are present
modify the phase order at the heat
pump's electrical connection terminal
block
31
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