FULTON PulseHW Series Installation, Operation And Maintenance Manual page 76

Spark Plug
Loose Wire Connection
Temperature Control
Loose Tubing
Fulton Heating Solutions, Inc. -- PHW Manual -- 2010-0713
Page 76
Check for carbon buildup,
moisture, cracks in porcelain.
Check for proper gab (.050"-.060"
for Champion spark plug). Clean
or replace as necessary.
Check connections to all
components.
Check that the operating
temperature control is set higher
than temperature of the boiler
water.
Check to see if the copper tubing
on the air valve housing is
securely connected.