9 – Error codes and how to solve them :
This table explains the error codes caused by a defective
regulating component or by a security operation. You have to call your
retailer.
Screen and state
of the heat water
pump
Component
Possible cause
Intervention of your retailer
E 1
The heat pump
continues running
Water temp sensor
Sensor disconnected,
non supplied or
defective
Check the connections, the wires, change
it or replace the electronic card
E 2
The compressor stops
and after the fan stops
too
Ambient air
temperature sensor
Sensor disconnected,
non supplied or
defective
Check the connections, the wires, change
it or replace the electronic card
E 3
The heat pump
continues running
Oultlet compressor
temperature sensor
Sensor disconnected,
non supplied or
defective
Check the connections, the wires, change
it or replace the electronic card
E 4
Compressor and fan
stop
Defrosting system
The defrosting is
incomplete and the
automatism decides to
stop the heat pump
Increase lightly the water flow going into
the heat pump; the effect is to increase the
temperature of the refrigerant in the
evaporator.
E 5
Magnetic ammeter
The compressor stops 3
times in 24h because of
intensity excess in the
compressor
Environment problem
See DIRECTIONS FOR
INSTALLATION AND MAINTENANCE
E 6
Compressor and fan
stop
Oultlet compressor
temperature sensor
Oultlet compressor
temperature detected
up to 105°C more than 3
times in 24h
Environment problem
See DIRECTIONS FOR
INSTALLATION AND MAINTENANCE
E 7
Compressor and fan
stop
Magnetic circuit
breaker
Electric current leak
from the compressor,
from the fan or from an
electrovalve; electric
safety system of the heat
pump
Switch off the current and call an
electrician for repairing or replacing the
defective component
Flow
switch
Flow switch
disconnected, non
supplied or defective
Check the connections, the wires, change
it or replace the electronic card
E 9
Pressure controller
High pressure
Pressure controller is
disconnected, or
defective.
Or increasing in
pressure in the
refrigerant circuit
Call a refrigerating engineer who will do
the necessary controls of the circuit
pressure
E A
Pressure controller
Low pressure
Pressure controller is
disconnected, or
defective.
Call a refrigerating engineer who will do
the necessary controls of the circuit
pressure
Or lack of gas in the
refrigerant circuit.
10
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