Troubleshooting - FULTON VSRT Series Installation And Operation Manual

Troubleshooting

Refer to table below for troubleshooting.
Problem
Ignition Failure
Flame Failure
* For natural gas fired boilers. Refer to the test fire sheet for all other fuels.
Questions? Call (315) 298-5121, or visit us online at www.fulton.com
MAINTENANCE & TROUBLESHOOTING - 4
Troubleshooting Gas Fired Boilers
Cause
Power Supply
Ignition Electrodes
Transformer
Flame Safeguard Control
Faulty Air Switch
Gas Supply*
Loose Wire Connection
Power Supply
Gas Supply*
Ignition Electrodes
UV Scanner
Flame Safeguard Control
Loose wire at fuel valve circuit Tighten wiring connections.
Contact open on air safety
switch
Scanner wiring reversed at
panel box
Remedy
Check fuse or circuit breaker. Reset or replace, as necessary.
Check electrodes for carbon buildup and clean if necessary.
Check for proper adjustment. Readjust if necessary. Check
for cracks in porcelain. If found, replace.
Check voltage between transformer leads at terminal block
to be sure transformer is being powered.
Check voltage between ignition terminal and neutral.
Check must be made before control locks out on safety. If
no power, replace control.
Use a volt meter in series with the air switch to check to see
if the switch is making (closing). Also check the adjustment
of the air switch setting. If both above do not work, check
the range of the air switch and measure the burner fan
pressure at the air pressure switch sensing port to make
sure the air switch is within range.
Check for gas pressure and for intermittent supply
problems. Gas pressure for natural gas should be 3 in. to
13.8 in. w.c. at the head of the train.
Check connections to all components.
Check fuse or circuit breaker. Reset or replace, as necessary.
Check for gas pressure and for intermittent supply
problems. Gas pressure for natural gas should be 3 in. to
13.8 in. w.c. at the head of the train.
Check electrodes for carbon buildup and clean if necessary.
Check for proper adjustment.
Readjust if necessary. Check for cracks in porcelain; if found,
replace.
Check for debris on flame scanner and clean as needed.
Check for proper location of detector.
Check voltage at terminal leading to main gas valve. If no
power, replace the control.
Adjust to proper setting.
Change to correct terminals.
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