Fulton Pulse HW (PHW) Fully Condensing Hydronic Boiler - Manual (Page 65)

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SECTION 4
PHW-IOM-2013-0214
MAINTENANCE
4-5
Troubleshooting
Use the following table as a guide to troubleshooting your boiler.
Problem Cause Check
Starting or Purge Failure
Power Supply Check fuse or circuit breaker. Reset or replace, as neces-
sary.
On/Off Switch For all models check to see if on/off switch has loose wires.
Bad Air Switch Try adjusting sensitivity of switch or replace.
Bad Fan Check fan for operation. Replace if necessary.
Flame Rod Check for carbon buildup, cracks in porcelain.
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 buildup, moisture, cracks in porcelain.
Check for proper gab (.050”-.060” for Champion spark
plug). Clean or replace as necessary.
Loose Wire Connection Check connections to all components.
Setpoint Check that the setpoint is set higher than temperature of
the boiler 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 neces-
sary.
Main Control Check for bad ground, or bad control. Replace control.
Proof of Flame Switch Check adjustment of pressure switch number 2. It should
be set at 1.5” w.c. Replace if necessary.
Loose Wire Connection Check connections to all components.
Air Flappers Check to see if the fl appers on the air valve plate are
placed correctly (covering the holes).
Gas Flappers Check to see if the fl appers on the gas valve plate are
placed correctly (covering the holes).
Plugged Exhaust Line Check for blockage in exhaust piping and remove.
In all Cases: Reset main control panel box on fl ame failure.
Poor Combustion
Air Flappers Check to see if the fl appers on the air valve plate are
placed correctly (covering the holes).
Gas Flappers Check to see if the fl appers on the gas valve plate are
placed correctly (covering the holes).
Plugged Air Inlet Check for blockage in air inlet line and remove.
NOTE: If air or gas fl apper material is excessively dirty, they may stick in one position. Replace if excessively dirty.