Nibe PB 10, Installation And Maintenance Instructions Manual

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18 NIBE PB 10
Installation
Troubleshooting
The unit has stopped:
When the unit has stopped, before cutting the current,
check what LD1, LD2 or LD3 indicates, this is of great help
when troubleshooting.
Q
Check that there are pellets in the container/storage
area.
Q
Check that the external screw works (feeds in pellets).
Q
Clean the grate.
Q
Restart.
The unit does not start:
Q
Check the door frame switch.
Q
Check the boiler thermostat.
Q
Check that the unit is powered. Also check the separa-
ble contact.
Q
Check the fuses in the fuse box.
Q
Cut the current and press in the reset button on the
overheating protection. Reinstall the protection and
switch on the current to the unit.
Fan and ignition ok, but pellets not fed in:
Q
The thermal screw motor protection may have de-
ployed. Cut the current and wait 10 minutes.
Cut the current and check the glass fuses (20 x 5 mm),
and, if necessary, replace them (see control electronics
board).
Q Ignition/glow coil 6.3A slow.
Q
Fan 800 mA quick.
Q
Supply screw 1.0A quick.
Troubleshooting
Fuel is supplied, but ignition does not occur:
Checks Corrective
action
- fuse (6.3 A) on circuit board blown - replace
- glow coil does not become hot - replace
- glow coil electrical connections damaged - repair
Pellets feed in and ignite, but fan does not start:
Checks Corrective
action
- blown fan motor fuse on circuit board - replace
- fan motor faulty - replace
Pellets feed in, ignite and fan starts, but the screw
does not restart:
Checks Corrective
action
- photocell dirty - clean
- photo cell faulty - replace
Unit stops, but works after restart:
The photo cell has been affected due to incorrect combus-
tion
Checks Corrective action
- sensitivity on P5 - check LD1
when firing
(LD1 must come
on when the
burner is lit)
Work behind screwed covers may only
be carried out under the supervision of a
qualified electrician.
Note!