FULTON VMP Series Installation, Operation And Maintenance Manual page 72

TROUBLESHOOTING - 6
6.2 TROUBLESHOOTING
Problem
3. Boiler fails to start
4. Burner Cut-off
Page 64
Cause
1. No Power
2. Pressure Control
1. Oil tank empty
2. Power Supply
3. Ignition Electrodes
4. UV Detector
5. Faulty Air Switch
6. Faulty Level Control
7. Oil Nozzle
8. Transformer
9. Burner Control
10. Pressure Control
Remedy
Check fuse or circuit breaker. Reset or replace as
necessary.
Disconnect all power to the controller. Disconnect the
wires from the controller. Connect an ohmmeter between
the switch terminals. Lower the set point of the controller,
the switch should make. Raise the set point and re-check,
switch should break. if the controller operates improperly,
replace it.
Refill the oil tank. A slight delay in the re-priming of the
fuel pump may cause the burner programmer to require
resetting before the boiler operates satisfactorily.
Check fuse or Circuit breaker. Reset or replace as
required.
Check electrodes for carbon build-up, clean if required.
Check settings adjust if required. Check for cracks in
porcelain, if found, replace.
Check for dirt on detector, clean as required. Check for
proper location of detector.
Check for faulty air switch by jumpering the two air switch
leads at the terminal block. If the boiler starts and runs with
the jumper in place, the air switch should be replaced.
Check the level control relays are securely mounted on
their bases. Check the power supply to each. The relays
may be checked by swapping positions and checking they
are both functioning.
Check for clogged nozzle, clean or replace.
Check voltage between transformer neutral at terminal
block to be sure transformer is being powered.
Check voltage between pilot terminal and neutral and
ignition terminal and neutral. Check must be made before
the control locks out on safety. If no power replace control.
Disconnect all power to the controller. Disconnect the
wires from the controller. Connect an ohmmeter between
the switch terminals. Lower the set point of the controller,
the switch should make raise the set point and re-check,
switch should break. If the controller operates improperly,
replace it.
Fulton Ltd
OIL BOILER
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VMP-IOMM-2018-2