Megatherm wood-pellet burner
MPB 90 Pro
19.
Errors
Indication
Description
Solution /
Malfunction of the water
temperature sensors
1. The driver starts up relevant emergency
procedures for every sensor in order to prevent
the boiler from working beyond the safe range
for the installation of the central heating
2. When the boiler cools down, then restart the
controller and set the burner on automatic
mode.
"Furnace protect"
The temperature in the
boiler is higher than 92
o
C.
If the temperature is above
95
o
C, the STB sensor is
activated and the feeder is
turned off automatically (the
light next to the STB sensor
is ON).
At any case the pumps are
activated to avoid higher
temperatures
1. Wait till the boilers water temperature goes
down to 60
o
C
2. Reset the STB sensor, so the light next to it to
be OFF.
3. Restart the controller and set the burner at
automatic mode.
"Burner alarm"
The temperatures on
burner's feeder pipe is
higher than 65
o
C. (Back
fire protection)
This is happened either the
chimney's draught is no the
appropriate or the burner
hasn't been cleaned.
1.
If the temperature goes down to 60
o
C
and the photo sensor scans light, then the
burner's operation continuous normally.
2.
If the temperature goes down to 60
o
C
and the photo sensor doesn't scan any light,
then the signal “Burner alarm” is still on the
LCD and you must restart the controller.
"NO pellet"
1.
No pellet on the silo
1. Fill up the silo with pellet
2. Fill the feeder with pellet (Filling feeder
procedure)
3. Set the burner at automatic mode
2.
The feeder doesn't
work
If the light next to STB sensor is ON, it means
that overheat of the boiler has occurred and STB
has turned the feeder OFF.
1. Reset the STB sensor, so the light next to it to
be OFF.
2. Restart the controller and set the burner at
automatic mode.
Check the cable from feeder to the controller
3. Problem during
ignition procedure
Burner's tube hasn't been cleaned properly
1. Clean the burner
2. Restart the controller and set the burner at
automatic mode.
Igniter doesn't work
1. Change the igniter inside the burner.
23
CH: !!!!!! WUW: !!!!!!!
STOP
