15
420010244904
Maior P 150.1 PR /200.1 PR
EN
TROUBLESHOOTING
The burner does not start.
- Main switch in “0”.
- Fuses are blown.
- Boiler thermostats are in open position.
- Control box is defective.
The burner runs the prepurging but does not ignite and then switches into safety condition.
- Control box is defective.
- Ignition transformer is defective.
- Electrodes are dirty.
- Electrodes are defective.
- Electrodes are in wrong position.
- Nozzles are clogged.
- Nozzles are too worn.
- Filters are clogged.
- Oil pressure too low.
- Combustion air flow rate excessively high related to nozzle’s flow rate.
The burner ignites but then switches into safety condition.
- Control box is defective.
- Nozzles are clogged.
- Nozzles are too worn.
- The photocell does not detect the flame.
- Filters are clogged.
- Oil pressure too low.
- Combustion air flow rate excessively high related to nozzle’s flow rate.
The burner does not switch to High flame.
- Low flame and High flame manual switch on control board is in wrong position.
- Control box is defective.
- Solenoid valve coil is defective.
- Oil pressure too low.
- Filters are clogged.
- Nozzle is too worn.
- Nozzle is clogged.
- Air damper’s motor jack not properly adjusted or defective.
A
B
C
E
D
F
0
AUTO
0
I
A - selector :
0 = operating elements locked in an
intermediate position
1 = operation on maximum capacity
2 = operation on minimum capacity
3 = automatic operation
B - working lamp
C - termal lock-out lamp
D - fuse
E - main switch I / O
F - reset key
DESCRIPTION OF THE CONTROL PANEL OF THE BURNER
Summary of Contents for Maior P 150.1 PR
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