13
LED Status
Control Status
Probable Cause
Service Procedure
Six-one flash,
three second
pause
Failed to light pilot.
System auto resets.
1. Unstable pilot.
2. Pilot tube blocked or restricted.
3. Oxidation build up on pilot electrode.
4. Wire damage to pilot assembly or
bad connection at gas valve.
Page 16.
Six-two flash,
three second
pause
Pressure switch or
blower temp switch
opened during
burner operation.
System auto resets.
1. Vent blockage or improper vent
configuration.
2. Pressure switch tubing kinked or
blocked.
3. Faulty pressure switch.
4. Vent termination being affected by
wind.
5. Blower not spinning up to speed.
6. Blower temp or exhaust temp too
high.
7. Faulty blower temperature switch.
1. Check vent or vent
tables.
2 & 3. Page 18.
4. Refer to venting
section of installation
manual.
5. Page 20.
6 & 7. Page 24.
Six-three flash,
three second
pause
Pilot flame
extinguished.
System auto resets.
1. Unstable pilot.
2. Pilot tube blocked or restricted.
3. Oxidation build up on pilot
electrode.
4. Wire damage to pilot assembly or a
bad connection at gas valve.
5. Insufficient combustion air.
6. Gas pressure is out of
specification.
1-4. Page 16.
5. Refer to installation
manual.
6. Page 26.
Six-four flash,
three second
pause
Undesired-false pilot
flame sensed.
System auto resets.
Pilot valve stuck in open position.
Replace gas control,
page 28.
Seven flash,
three second
pause
Flammable vapor
sensor or resettable
thermal switch fault
detected.
1. Flammable vapor present
2. Flammable vapor sensor exposed
to excessive moisture
3. Flammable vapor sensor exposed
to extreme ambient temperature
4. Resettable thermal switch open
Page 29.
Eight-one flash,
three second
pause.
Flammable vapor
sensor out of
specification.
Flammable vapor sensor or simulated
resistive device out of specification.
Page 29.
Eight-two flash,
three second
pause.
Temperature sensor
fault.
1. Damage to temperature sensor
wire.
2. Temperature sensor resistance out
of range.
Replace gas control,
page 28.
Eight-three flash,
three second
pause.
Gas valve
electronics fault
detected.
1. Control needs to be reset.
2. Control is wet or physically
damaged.
1. Interrupt power supply.
2. Replace gas control,
page 28.
Eight-four flash,
three second
pause.
Gas valve fault
detected.
1. Control needs to be reset.
2. Control is wet or physically
damaged.
1. Interrupt power supply.
2. Replace gas control,
page 28.
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