Control Stops And Faults; General; Control Stop Codes - DeDietrich C230 ECO-A 120 Installation, Operating And Service Manual

11 Control stops and faults

11 Control stops and faults

11.1 General

11.2 Control stops and faults

11.3 Control stop codes

68
The boiler is fitted with an advanced control unit. The heart of the
control is a microprocessor, the Comfort Master, which both protects
and controls the boiler.
Control stop
The control stop is a (temporary) boiler operating mode due to an
abnormal situation. The boiler switches to the neutral position so that
it can return to a normal state. The display then shows the shutdown
status (with code 9) again. The boiler control unit will, at first, try
several times to start the boiler again. The boiler shall operate again
when the causes of the control stop have been removed.
Fault
If the shutdown condition still exists even after various automatic
control unit start attempts have been made or if a non-reproducible
phenomenon has arisen, the boiler switches to fault mode (also
known as lock-out). The boiler can only resume operation if the cause
of the fault is rectified and the reset-key is pressed.
The boiler display will show code 9.
The control stop codes can be read out as follows:

Push the -key, and then the

The display shows 5t:9;
 Push the [+]-key one time; the display shows 5u and the control
stop code.
The boiler shall start automatically when the causes of the control stop
have been removed.
C230 ECO-A
-key;