© 2022 Staheli West
139
Faults
Fault 28: Pilot Flame Fail
Indicates a failure in either the ignition system or the safety system that detects the pilot flame.
IMPORTANT: Perform “Test 1” first to determine whether or not a pilot flame is present.
Causes
Troubleshooting
Fixes
Flame De
tect
or
• Faulty
flame detector or
photocell.
• Perform “Test 1”.
• Replace
flame detector or
photocell (check other causes
before buying a new component).
• Moisture/Dust in the
flame
detector.
• Remove fish-eye lens and
photocell tip and inspect for
moisture (even the slightest
amount of moisture can cause
Fault 18 to occur).
• Clean and dry the flame
detector assembly (This may
require several minutes to air out
these components completely)
(Weatherproof flame detector if
needed).
• Dry photocell.
• Faulty/Loose amplifier card.
• Check the amplifier card is
seated properly.
• Replace/Re-seat amplifier card
(Re-seat and secure in place with
tape or a tie wrap).
Spark
• Dirty assembly.
• Remove assembly and check for
spark.
• Clean ignition assembly.
• Improper gap setting.
• Remove assembly and check for
spark.
• Set electrode gap to 5/32” (Test
5).
• Spark grounding to burner.
• Remove assembly and check for
spark.
• Set electrode to proper
orientation (Test 5).
• Ignition cable disconnected.
• Check ignition cable.
• Connect ignition cable.
• Faulty ignition transformer.
• Perform “Test 4”.
• Replace ignition transformer.
Pr
opane
• Propane tank valve closed.
• See Fault 205.
• Open propane tank valve.
• Propane tank empty.
• Check propane tank.
• Refill propane tank.
• Partially/Fully clogged
burner regulator.
• Test that propane is passing
through the regulator.
• Replace burner regulator.
• To prevent future clogs, clean
propane hoses using compressed
air.
• Improper burner regulator
adjustment.
• Perform “Test 6”.
• Adjust regulator psi output
(Clockwise increases psi).
• Faulty propane solenoid.
• Perform “Test 3”.
• Replace / Clean propane
solenoid.
• Clogged propane hose/
nozzle.
• Disconnect propane regulator; during pilot ignition, spray
compressed air through the propane solenoid valve to clear the hose
and nozzle of debris.
• Leaky burner igniter
assembly.
• Perform “Test 7”.
• Replace burner igniter
assembly.
• Overtightened propane
solenoid fittings.
• Check for overtightened
fittings.
• Replace/Repair overtightened
fittings.
• Faulty wiring.
• Inspect the wiring for ground,
continuity, and proper voltage.
• Replace/Repair wiring.