FULTON Vantage VTG Series Installation And Operation Manual page 62

MAINTENANCE
PROBLEM
Control does not illuminate Power supply
Fan will not start
Pilot Fails
4-10
TROUBLESHOOTING
CAUSE
High temperature is tripped
Low gas is tripped
High gas is tripped
UT32A incorrectly set/no heat
Flame detector has detected light/scanner
Air switch is made when fan is not on
Blower contactor made when fan not on
Gas valve proof of closure defective
Loose wire connection
Insuffi cient gas supply
Pilot valve fails to open
Air in pilot gas line
Ignitor failure
Combustion air not suffi cient
Flame Detector Defective
Gas fi lter blocked
VTG-IOM-2013-0815
CHECK
Check fuse or circuit breaker. Reset or replace as
necessary.
1. Reset switch
2. Replace switch
1. Reset switch
2. Replace switch
1. Reset switch
2. Replace switch
Adjust UT32A
1. Identify light source, remove
2. Replace fl ame detector
1. Reset switch
2. Replace switch
Replace motor contactor
Replace valve
Check wiring
1. Verify the manuals shut off valves are open
allowing gas fl ow to the pilot tube.
2. Adjust incoming gas pressure to match the start
up report.
3. Adjust pilot gas pressure regulator to match the
start up report.
1. Check pilot gas pressure at the burner.
2. Verify operation of the valve. If pressure does
not increase when the valve is supposed to open,
replace valve.
Have the boiler attempt to light up to three times. If
the boiler fails to light, call Fulton.
1. Check the gap between the top of the electrode
and the pilot tube wall. The gap should be 1/16"
(1.59 mm). Adjust the gap.
1. Check for cracked porcelain. Replace electrode.
1. Verify the over burner pressure matches the start
up report. Adjust the servo setting.
2. Verify there is enough make up air in the room.
3. (For direct vent only) Verify venting is not
obstructed.
1. Visually verify the fl ame through the site glass.
2. Remove fl ame detector and visually verify fl ame
through the scanner tube.
3. Verify the fl ame detector eye is not dirty.
4. Replace fl ame detector.
Replace gas fi lter.
SECTION 4
© The Fulton Companies 2013