The KWB Comfort 3 shows how often the individual alarms have occurred in the alarm statis-
tics. You can scroll through the occurring alarms using the dial.
The alarm list
The following alarm list describes all alarms and contains possible repair attempts.
Alarm 00 – The control system is not completely adjusted
The system will be switched off.
If Alarm 00 occurs directly after switching on, the language selection mask will be displayed
after acknowledging the alarm.
4
Notify customer service.
Alarm 01 – The memory module is faulty
The system will be switched off.
4
Notify customer service.
Alarm 02 – Electronic defect on the digital inputs
The system will be switched off.
4
Notify customer service.
After rectifying the cause, the alarm is automatically cancelled.
Alarm 03 – The time must be reset
Power supply and buffer battery have failed
The batteries in the boiler control unit can supply the board with electrical voltage for approxi-
mately 1 year. After this, the system fails and requires you to enter the date and time again the
next time the system is started:
Main menu >> Date/Time [► 38]
4
Acknowledge the alarm.
Alarm 04 – The maintenance interval has elapsed. Notify
customer service.
4
Notify customer service.
The interval expires after 1500 full-load hours (for KWB Easyfire and KWB Multifire) or 3000
full-load hours (for KWB Powerfire).
By pressing the Set button, the alarm is suppressed until the next 100 hours (e.g. 1600, 1700
hrs.).
8.2
8.2.1
8.2.2
8.2.3
8.2.4
8.2.5
8
Troubleshooting
The alarm list
52
B KWB Easyfire EN, 05.2011
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