6 Troubleshooting
6.1
Shutdowns and lock-outs
For operation of the boiler
C 630 ECO
:
The features and instructions described are for each boiler
module.
6.1.1.
General
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. When
a failure is signalled, the boiler stops or becomes locked.
￭
Blocking
(Control stop)
A (temporary) blocking mode is a boiler operating function caused by
an unusual situation. In this case, the display gives a code of blocking
(code
5t[9
). The boiler control will try to re-start several times.
The shutdown codes can be read out as follows
The boiler starts up again automatically when the reason
for the blocking has been removed.
Shutdown
code
Description
Probable causes
Checking / solution
5v[0
Parameter error
The PSU PCB is incorrectly
configured
4
Reset
df
and
dV
4
Restore parameters with Recom
5v[1
Maximum flow temperature
exceeded
The water flow in the
installation is insufficient
4
Check the circulation (direction, pump,
valves)
5v[2
Maximum increase of the flow
temperature has been exceeded
The water flow in the
installation is insufficient
4
Check the circulation (direction, pump,
valves)
4
Check the water pressure
4
Check the cleanliness of the heat
exchanger
Sensor error
4
Check that the sensors are operating
correctly
4
Check whether the boiler sensor has been
correctly fitted
5v[3
Maximum heat exchanger
temperature exceeded
The water flow in the
installation is insufficient
4
Check the circulation (direction, pump,
valves)
5v[4
Maximum heat exchanger
temperature increase has been
exceeded
The water flow in the
installation is insufficient
4
Check the circulation (direction, pump,
valves)
4
Check the water pressure
4
Check the cleanliness of the heat
exchanger
Sensor error
4
Check that the sensors are operating
correctly
4
Check whether the boiler sensor has been
correctly fitted
(1) These lock-outs are not stored in the fault memory
IniControl For C 330 / C 630 ECO
6. Troubleshooting
260216 - 7600717-001-06
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