THERMOSTAHL ECOTWIN ECT 100, Installation And User Manual

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TROUBLESHOOTING
9. TROUBLESHOOTING
Indication Description Solution
CH:!!!!
WUW:!!!!!!
STOP
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 70
o C. (Back fire
protection)
This is happened either the
chimney's draught is no the
appropriate or the burner
hasn't been cleaned.
If the temperature goes down to 60 o C and the
photo sensor scans light, then the burner's
operation continuous normally.
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"
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
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.