8 Troubleshooting
8.1
Error codes
The boiler is fitted with an electronic regulation and control unit. The
heart of the control system is a microprocessor, the
Comfort
Master
©
, which controls the boiler and also protects the boiler. If a
fault is detected anywhere in the boiler, the boiler locks out and the
display will show the fault code as follows:
In a red flashing display:
4
The symbol
c
4
The symbol
J
4
The fault code (for example
e[01
)
The meaning of the error codes is given in the error table. To do this,
proceed as follows:
4
Note the error code displayed.
The error code is important for rapid and correct tracking
of the type of problem and for any technical assistance from
Remeha
.
4
Press the
J
key for 2 seconds. If the error code continues to
display, search for the cause in the error table and apply the
solution.
If the display does not show
J
but rather
a
, the boiler
must be switched off and then switched on again after 10
seconds before the fault can be reset.
Error
code
Description
Probable causes
Checking / solution
e[00
Storage unit PSU
parameter not found
4
Bad connection
4
Check the wiring
e[01
The safety parameters
are incorrect
4
Bad connection
4
PSU defective
4
Check the wiring
4
Replace PSU
e[02
Flow temperature sensor
short circuited
4
Bad connection
4
Sensor fault
4
Sensor not or badly
connected
4
Check the wiring
4
Check that the sensors are operating correctly
4
Check that the sensor has been correctly fitted
4
Replace the sensor if necessary
e[03
Flow temperature sensor
open circuit
4
Bad connection
4
Sensor fault
4
Sensor not or badly
connected
4
Check the wiring
4
Check that the sensors are operating correctly
4
Check that the sensor has been correctly fitted
4
Replace the sensor if necessary
Calenta 25s - 28c - 35s - 40c
8. Troubleshooting
040412 - 7600585-01
85
