15
UPV Series
15
LEDStatus
ControlStatus
ProbableCause
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 18.
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 19
4. Refer to venting
section of installation
manual.
5. Page 21
6 & 7. Page 23.
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 18.
5. Refer to installation
manual
6. Page 25.
Six-four flash,
three second
pause
Undesired-false
pilot flame sensed.
System auto resets.
Pilot valve stuck in open position.
Replace gas control,
page 27.
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
1-3. Flammable sensor
testing, Page 28.
4. Resettable thermal
switch testing,
Page 37.
Eight-one
flash, three
second pause
Flammable vapor
sensor out of
specification.
Flammable vapor sensor or simulated resistive device
out of specification.
Page 28.
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 27.
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 27.
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 27.
