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10. Faults and their removal
Tab. no. 10
Faults and their removal
Operating fault
The cause
Solution
Failure to reach the
desired
room
temperature
Insufficient heat output of the burner
Increase the degree of heat output of the burner
Low temperature setting value in the
operating thermostat of burner
Increase the set values of operating thermostat of
burner (up to 90 °C)
A low setting of the value of temperature
on the room thermostat (if connected)
Increase the set values of room thermostat
Exceeding the specified
room temperature
A high heat output of burner
Reduce the degree of heat output of the burner
A high setting of the value of
temperature on the operational
thermostat of burner
Reduce the set values of operating thermostat of
burner (It is recommended to keep it above 60 °C)
High set temperature values on the
room thermostat (if connected)
Reduce the set values of room thermostat
Difficult ignition
Low quality of fuel
Change the fuel
Boiler overheating
(safety thermostat is
activated)
System without heat removal, incorrect
setting of burner parameters or an
unbalanced operation of the system
Modification of the operation parameters of burner
(degree of heat output).
The safety thermostat must be manually reset. The
safety thermostat can be switched on only after the
drop of temperature below the set value. You have
to unscrew the black cover of the safety thermostat
and press the button by using a suitable tool. In
case of repeated switching off of the safety
thermostat, the boiler must be put out of operation
and the cause of repeated overheating of boiler
must be found out. Then restart the burner (switch
off and again switch on the power supply).
Failure of pumps
Repair or exchange the pumps.
Lack of fuel on the grate
of combustion chamber
Lack of fuel in the fuel reservoir
Refill the fuel in the fuel reservoir. Disconnect the
flexible hose and the body of burner. Insert the end
of the hose into a prepared vessel. Disconnect the
supply cord of fuel feeder from the burner, and
then plug it into an electricity socket. Wait until the
pellets begin to fall out from the feeder into the
vessel. Disconnect the feeder from mains and re-
connect with the burner. Push the hose on the
knee of burner.
Failed ignition
Fuel is located in the burner grate, but
does not burn.
Check or exchange the ignition spirals.
Fuel is located in the
burner grate, completely
burned, but the ignition
process is terminated.
Functionless sensing of the flame by
means of photosensor
Clean or exchange the photosensor. The exchange
can be carried out only by an authorized
technician.
;
Functionless burner
No power supply
Check the function of display of the control module
located on the panel of interface of burner.
Check
the
connection
and
the
electrical
parameters of the main unit of burner and the
power supply of the heat appliance - parameters
should be as follows: 220 V, 50 Hz - may be
performed only by an authorized technician;
Make sure that the power supply is properly
connected - may be performed only by an
authorized technician;
Check the wiring of electrical connections of
control module - may be performed only by an
authorized technician;
No signal from the control box of boiler
Check the availability of signal to start the burner.
Check the interconnection between the burner and
control box.
The burner does not start and the signal
is alight
Check whether burner is not in a fault status - see
Tab. no. 4 and 5 (VIADRUS HERCULES Green
Eco Therm XJ) and 9 (VIADRUS HERCULES
Green Eco Therm XS)
