NBE Opop 4120, Инструкция по установке и эксплуатации, Страница: 13 / 22

Trouble shooting.
PROBLEM CAUSE SOLUTION
ALARM, WARM DOWNPIPE,
SMOKE BLOW BACK
1. cinders/ash in the burner head
2. ash in the boiler, flue pipe and
chimney
3.
flue deflector incorrectly mounted
4. lack of draught in the chimney
5. output kw to boiler is too high
6. thermal sensor defect
7. unfavorable draught
Clean the burner
Clean the boiler, flue pipe and chimney
Correct or remove the exhaust deflector plate
in the boiler
Insulate and raise the chimney
Decrease the output in HIGH LOAD
Change the thermal sensor
Change/correct your flue
ALARM, FAULT WITH
ELECTRIC IGNITION
1. flue grate is not positioned correctly
2. ash/cinders in the burn head
3. damp pellets
4. too few/many pellets for electric ignition
5. electric ignition incorrectly positioned
6. defective electric ignition
7. chimney draught too high
8. photo sensor defective/sooty
9. blower stopped
Check fitting of burner to boiler
Clean the burner
Change supplier/increase maintenance
Adjust the amount by or – 1%
Place in the square holder
Change the electric ignition/lignite manually
Mount a draught regulator on the chimney
Clean/change the sensor
Clean the blower and check if it runs
ALARM, LOW BOILER
TEMPERATURE
The boiler temperature has not been above
35 degrees after 2 hours or has gone
below 35 degrees during operation
Too little output on the burner, adjust output
Check the feed / pellet supply and blower
Check the temperature sensor is on the boiler
ALARM CONNECTOR IS NOT
MOUNTED
1. the connector is not mounted correctly
2. dirt in the connector
3. sensor defective
Check the connector on the burner
Clean pellet debris/dust from the connector
Change the sensor (photo/thermal sensor)
No/ black display in the
control panel
1. the over-temperature safeguard on the
boiler has been knocked out
2. fuse blown in the control system
Reconnect the over-temperature safeguard
Change the fuse. Check for short circuits
The boiler triggers the mains
trip knockout switch 1. electric ignition defective
2. cables defective
Change the electric ignition/ignite manually
Check the cables and plug. Note the state the
boiler is in when the trip is engaged
The boiler goes out during
LOW LOAD/PAUSE and has a
thin flame
1. fuel supply unstable
2. pellets hang in the thermoplastic hose
Check the feed inlet for dust
Check the pellets for dust / moisture
Check the feed screw incline
Check the fall from feed screw to burner
Pellet consumption too
high / desired boiler
temperature not being
reached
1. burn incorrectly adjusted
2. chimney draught too high
3. flue deflector incorrectly adjusted
4. poor boiler efficiency and adjustment
5. burner output too high
Check that the ash is dark grey
Measure the chimney draught / mount a
draught regulator
Check boiler and flue deflector
Measure flue temperature and fix deflector
Decrease output on burner
Boiler and burner are sooty/
black
1. feed times too high
2. pause firing incorrectly adjusted
3. blower stopped
Adjust feed levels
Adjust flue deflector and chimney pressure
Clean blower
Cancel the alarm, turn off power then on again and hold DOWN button
for 8 seconds on controller.
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