Technical instructions Cm Pelet-set
16
Solid fuel firing
9. Errors
Regardless the current operating regime of the burner, if errors E1, E2, E3, E7, E8, E9 and E230
occur, the control unit will stop operation immediately, while in case of errors E4, E5 and E6 burner
goes to extinction phase. If control unit is in firing phase and flame has not occurred yet, due to
notification on error, supply, fan and heater will be stopped immediately.
In case of error “Err” appears in the upper display and error type appear appears in the lower display
and if it is also necessary to carryout extinction phase (in case of E4, E5 and E6 errors) “Err” appears
in the upper di
splay and “OFF” and error type appear alternately in the lower display.
Error symbols: -
E1
– safety pressure switch (LED diode turns on)
-
E2
– firing safety time expired
-
E3
– excessive temperature on feeding tube (LED diode
turns on)
-
E4
– boiler temperature sensor
-
E5
– sanitary water temperature sensor
-
E6
– flame disappeared
-
E7
– error in memory
-
E8
– interruption in fan operation
-
E9
– backfilling supply tube with pellets
-
E230
– signal of error E2 or E6 due to power supply interruption
To enable control unit to resume to normal
operation, error must be corrected and cancel it on
the control unit. Error is cancelled by simultaneous
pressing
WINTER
and
SUMMER
buttons and ''
+
''
button. If the error cause is not repaired, error
cannot be cancelled.
9.1. Errors and possible causes
ERROR
CAUSE
WHAT TO DO
E1
– safety
pressure switch
Too high resistance in
combustion chamber
Check:
How much is filled the boiler combustion chamber
with ash, registers, flue gas tube and chimney;
whether the pipe between pressure switch and boiler
door is pressed. ,
E2
– firing safety
time expired
Flame does not occur
within safety time (12
min.)
Check whether:
there are pellets in pellet tank;
there are pellets in pellet screw feeder;
pellet feeder flexible tube has slope toward the
