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5.2. Safety Measures
When carrying out repairs follow safety precautions described in Item
Manual, safety rules, as well as requirements to repair of boilers that also include
requirements for the burner repair
.
5.3. Potential Failures and Troubleshooting Practice
Table
3
includes simple failures the user faces very often and the user is allowed to
fix such failures by his own efforts
.
Table
3.
Failure
Potential Reason
Troubleshooting Method
Burner does not start
burning
Lack of fuel
1.
Fill the bunker and screw feeder with fuel
pellets.
2.
Remove error on the controller by pressing
«Stop» button.
3.
Repeat firing process by pressing «Start»
button.
Igniter failed
1. Get in touch with the manufacturer or service
company.
Large amount of bottom ash in
the burner firebox
1. De
-
energize the burner.
2. Let it get cool up to the safe temperature (lower
45°С).
3. Clean the firebox thoroughly to restore passing
ability of air channels.
Internal screw does not work
1.Check the network for stable power supply.
2.Check fastenings of the internal screw with
gearbox.
3. Check electric wiring (contacts) on gearbox and
burner connector.
Boiler overheat
(overheat detector
light is
ON
on the
controller panel)
Rise of maximum temperature
for heat carrier heating-up in
central heating circuit
1. Press «Stop» button on the controller.
2. Let the boiler get cold.
3. Define the reason for overheat and take
measures to eliminate it.
Damage of
temperature sensor
Damage in chain of the heat
carrier temperature sensor
1.
Get in touch with the manufacturer’s service
company if the data on error is not annulled after
pressing «Stop button.
2. Replace the sensor
Failure
Potential Reason
Troubleshooting Method
Damage in chain of the outgoing
gas temperature sensor
1.
Get in touch with the manufacturer’s service
company if the data on error is not annulled after
pressing «Stop button.
Burner smokes, soot
appears
Extra amount of fuel in
comparison with air. Burner
firebox is filled with bottom ash
1. Let the burner get cold,
and clean the burner
firebox to restore passing ability of air channels.
2. Adjust amount of fuel and fan rpm.
Burner firebox is filled
with bottom ash too
often
Fuel of poor quality is used
1. Change operation mode of the cleaning unit
(See Controller
Manual).
2. Change the fuel supplier.
The examples described above do not exclude other reasons that might result in a
