KWB Easyfire User Manual

Communication problem between boiler control unit and heating circuit expansion
module
4
Notify customer service.
Alarms 204 to 237 – Network error on the digital remote
control unit x!
The KWB Comfort 3 can manage a maximum of 34 digital remote control units: The Alarm 204
pertains to the device 1, the Alarm 237 pertains to the device 34. However, the system contin-
ues to run.
Communication problem between boiler control unit and one of the digital remote
control devices.
4
Notify customer service.
Alarm 238 – Fault in the heating circuit network
The system will continue to run.
After rectifying the cause, the alarm is automatically cancelled.
4
Notify customer service.
Alarm 239 – The boiler sensor on the second boiler is missing
or is defective!
Defective sensor or sensor cable
4
Check the sensor for boiler temperature on the second boiler or its cabling according to
specification by the manufacturer.
4
If the fault occurs regularly, please notify customer service.
Alarm 240 – The negative pressure in the combustion
chamber cannot be regulated!
The induced draught fan CANNOT generate the required negative pressure in the combustion
chamber.
The system will be switched off.
Boiler opening leak
4
Switch off the system and allow it to cool down before you check the seal tightness of the
boiler door!
Induced draught fan defective
4
Notify customer service.
Heat exchanger blocked
4
Notify customer service.
Negative pressure measurement blocked or sensor defective
4
Notify customer service.
8.2.34
8.2.35
8.2.36
8.2.37
Troubleshooting
8
The alarm list
B KWB Easyfire EN, 05.2011
59

KWB Easyfire Specifications

General

Fuel Type	Wood pellets
Cleaning System	Automatic heat exchanger cleaning
Emission Class	5
Nominal Heat Output	10 kW
Type	Pellet heating system
Ash Removal	Automatic
Heating capacity	10 kW
Hopper capacity	15 kg
Flue diameter	130 mm