A1 | HEAT PUMP
Code
Cause
Solution
A1 1
Temperature sensor T1 (Outside);
Temperature is outside the normal operational area or the
sensor has been interrupted or short-circuited.
-
Contact your installer or service organisation.
A1 2
Temperature sensor T3 (Boiler Low);
Temperature is outside the normal operational area or the
sensor has been interrupted or short-circuited.
-
Contact your installer or service organisation.
A1 3
Temperature sensor T2 (Boiler High);
Temperature is outside the normal operational area or the
sensor has been interrupted or short-circuited.
-
Contact your installer or service organisation.
A1 4
Temperature sensor T4 (Injection);
Temperature is outside the normal operational area or the
sensor has been interrupted or short-circuited.
-
Contact your installer or service organisation.
A1 5
Temperature sensor T5 (Suction gas);
Temperature is outside the normal operational area or the
sensor has been interrupted or short-circuited.
-
Contact your installer or service organisation.
A1 6
Temperature sensor T6 (Discharge);
Temperature is outside the normal operational area or the
sensor has been interrupted or short-circuited.
-
Contact your installer or service organisation.
A1 7
Temperature sensor T7 (Liquid);
Temperature is outside the normal operational area or the
sensor has been interrupted or short-circuited.
-
Contact your installer or service organisation.
A1 8
Temperature sensor T8 (Supply Source);
Temperature is outside the normal operational area or the
sensor has been interrupted or short-circuited.
-
Contact your installer or service organisation.
A1 9
Temperature sensor T9 (Return Source);
Temperature is outside the normal operational area or the
sensor has been interrupted or short-circuited.
-
Contact your installer or service organisation.
A1 10
Temperature sensor T11 (Return Central heating);
Temperature is outside the normal operational area or the
sensor has been interrupted or short-circuited.
-
Contact your installer or service organisation.
A1 11
Temperature sensor T10 (Central heating supply);
Temperature is outside the normal operational area or the
sensor has been interrupted or short-circuited.
-
Contact your installer or service organisation.
A1 12
Central heating pressure sensor is not functioning properly
or is faulty.
-
Contact your installer or service organisation.
A1 13
Flow measuring coil 1 is not functioning properly or is
faulty.
-
Contact your installer or service organisation.
A1 14
Flow measuring coil 2 is not functioning properly or is
faulty.
-
Contact your installer or service organisation.
A1 15
The source flow sensor is not functioning properly or is
faulty.
-
Contact your installer or service organisation.
A1 16
An automatic function or setting has been changed to
manual control.
-
Contact your installer or service organisation.
A1 17
The pressure switch (high pressure switch) has been
activated.
-
Contact your installer or service organisation.
A1 18
The pressure switch (high pressure switch) is not
functioning properly or is faulty.
-
Contact your installer or service organisation.
A1 19
The water pressure of the central heating system is too
low.
The heat pump cannot function until the water pressure is
restored.
-
Refill the heating system and check for water
leakage. The pressure of the central heating
system should be between 1.5 and 2 bar.
-
If the appliance remains in an error state or the
same error occurs repeatedly, contact your
installer or service organisation.
A1 20
The water pressure of the central heating system is too
low.
The heat pump can still function.
-
Refill the heating system and check for water
leakage. The pressure of the central heating
system should be between 1.5 and 2 bar.
-
If the appliance remains in an error state or the
same error occurs repeatedly, contact your
installer or service organisation.
40
Summary of Contents for WPU 5G 25 c
Page 1: ...A Itho Daalderop WPU 5G User manual...
Page 2: ...Translation of the original document...
Page 7: ...7...
Page 49: ...49...
