Instruction manual
38 
Too high flue gas temperature (warning)
Cause: 
Control light 3 red: 
Flue gas temperature > 300°C 
Flickers 
Temperature of flue 
gas is too high 
Boiler temperature 
(°C) 
Correction: 
Reset: 
Emergency program:  
Actions of regulator: 
By heating-up and refuelling, close the door 
immendiately 
In operation: After burning-out, clean the 
boiler 
Automatically at flue gas temperature <299°C 
No 
Flue gas temperature > 350°C, flue gas fan 
stop 
Flue gas temperature < 299°C, flue gas fan 
start 
Overheating (warning) 
Cause:  Boiler is on and its temperature is > 90°C 
Fuel surplus, circuiting pump error 
Overheating 
DO NOT OPEN! 
Boiler temperature 
(°C) 
Control light 3 red: 
Correction: 
Reset: 
Emergency program:  
Actions of regulator: 
Flickers 
Load less fuel or remove error 
Automatically at boiler temperature < 89°C 
No 
Boiler temperature > 90°C, flue gas fan stop 
V1=0 %, V2=min. 25 % open 
Boiler temperature < 89°C, flue gas fan start. 
V1 and V2 are adjusted after setting. 
Incorrectly measured values of flue gas temperature (error)
Cause:  Measured values < -20°C or > 499°C 
Control light 2 yellow 
Correction: 
Lights 
Check sockets and inlet conductors! 
Replace sensors, if necessary! 
Error in measuring 
of temperature 
Fluegas temperature 
(°C) 
Reset: 
Emergency program:  
Actions of regulator: 
Automatically after error removing. 
Yes, burn-out possible 
Regulator works with big amount of 
alternative air V1 and V2. Boiler has to be 
switched off manually and let to burn out by 
the „-“ button. While warming, no line graph 
is displayed. 










