Installation instructions
45
6.12 - ELIMINATING FAULTS
WOOD BOILER:
Problem:
- The panel board does not switch on.
Remedy:
- Make sure voltage reaches the power connector on the
main board.
- Use a tester to check electric continuity in the fuse.
Problem:
- The fan does not start.
Remedy:
- Check wiring.
Problem:
- The fan starts and stops after about 30 min.; by turning
the main switch ON and OFF pos. 11, it restarts.
Remedy:
- Increase the standby time (standard 50 minutes) from
the control board.
- Make sure the boiler’s return line has a no-return valve.
Problem:
- When opening the loading door there are blowbacks
and smoke escape.
Remedy:
- Open the door slowly.
- Use larger logs.
- Consume the previous load of wood before reloading.
Problem:
- The boiler does not reach the requested temperature.
The flame is small and there is too much air.
Inspecting the wood storage, the formation of log bridges
is found.
Remedy:
- Check the length of the logs (see page 43 - 44).
- Check the arrangement of the logs (see page 43 - 44).
- Cut the logs in half (see page 43 - 44).
- Use smaller blogs (round or square, about 5-7 cm
diameter).
- Mix medium-large sized blogs (round or square, about
15-20 cm diameter) with small sized logs (see
previous point).
Problem:
- The boiler does not reach the requested temperature.
The flame is too small.
Remedy:
- Check the fan.
- Check if the doors are properly closed.
If you cannot solve the problem, do no attempt
any other
interventions and contact an
authorised UNICAL After-Sales Service.
