User Manual

Maintenance
Troubleshooting
This troubleshooting guide will assist in the diagnosis and correction of minor field problems. It should be used in conjunction with
the unit wiring diagram. In any case requiring additional assistance, the Fulton Service Department should be contacted.
Problem Cause Check
Starting or Purge Failure Power Supply Check fuse or circuit breaker. Reset or replace, as
necessary.
On/Off Switch For all models check to see if on/off switch is illuminated.
Bad Air Switch Try adjusting sensitivity of switch or replace.
Bad Fan Check fan for operation. Replace if necessary.
Flame Rod (Option) Check for carbon buildup, cracks in porcelin.
Main Control Check for bad ground, or bad control.
Replace control.
Plugged Air Inlet Check for blockage of air inlet line and remove.
Spark Plug Check for carbon build up, moisture, cracks in
porcelain. Check for proper gap (.050" to .060"
for Champion sparkplug). Clean or replace as
necessary.
Loose Wire Connection Check connections to all components.
Temperature Control Check that the operating temperature control is set
higher than temperature of the water heater water.
Loose Tubing Check to see if the copper tubing on the air valve
housing is securely connected.
Flame Failure Power Supply Check fuse or circuit breaker. Reset or replace
as necessary.
Main Control Check for bad ground or bad control. Replace if
necessary.
Proof of Flame Switch Check adjustment of pressure switch No. 2. It
should be set at 1.5" W.C. Replace if necessary.
Flame Rod (Option) Check for carbon buildup, cracks in porcelin.
Loose Wire Connection Check connections to all components.
Air Flappers Check to see if the flappers on the air valve plate
are placed correctly (covering the holes).
Gas Flappers Check to see if the flappers on the gas valve plate
are placed correctly (covering the holes).
Plugged Exhaust Line Check for a blockage of the exhaust piping and
remove.
In All Cases: Reset main control in panel box on flame failure.
Poor Combustion Air Flappers Check to see if the flappers on the air valve plate
are placed correctly (covering the holes).
Gas Flappers Check to see if the flappers on the gas valve plate
are placed correctly (covering the holes).
Plugged Air Inlet Check for blockage of air inlet line and remove.
36-PDWH