KWB Easyfire - Alarm 251 - The emergency stop switch is pressed!; Alarm 253 - Speed of the PA fan is too low!; Alarm 254 - The speed of the induced draught fan is too low!; Alarm 255 - Error GSM module

Alarm 251 – The emergency stop switch is pressed!
The emergency-stop stop switch is pressed
Determine why this switch ("Emergency-stop switch" according to TRVB) was pressed:
4
If the system is OK, press the emergency-stop switch once more.
In all other cases:
4
Notify customer service.
No emergency-stop switch connected – Danger!
4
Connect an emergency-stop switch according to the building regulations that apply to you!
Alarm 253 – Speed of the PA fan is too low!
The minimum speed of the primary air fan was undershot.
4
Check the cabling of the primary air fan (PA)
4
If the fault occurs regularly, please notify customer service.
Alarm 254 – The speed of the induced draught fan is too low!
The speed of the induced-draught fan has dropped below the minimum.
The speed of the induced draft has been under 60 revolutions per minute since 3 minutes ago.
4
Check the cabling of the induced draught fan
4
If the fault occurs regularly, please notify customer service.
Alarm 255 – Error GSM module
Communication with GSM module interrupted
The communication with the GSM module was NOT able to be established, however, the sys-
tem continues to run:
4
Notify customer service.
Communication path interrupted
GSM module NOT plugged in
4
Notify customer service.
Poor reception
4
Check the reception in the heating room
Incorrect configuration
4
Notify customer service.
8.2.45
8.2.46
8.2.47
8.2.48
Troubleshooting
8
The alarm list
B KWB Easyfire EN, 05.2011
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