Bradford White PV Series Service Manual page 16

PV Series
LED Status Control Status
Failed to light
Six-one
flash, three pilot.
second
System auto
pause
resets.
Pressure switch
or blower temp
switch opened
Six-two flash,
three second
during burner
pause
operation.
System auto
resets.
Pilot flame
Six-three
flash, three extinguished.
second
System auto
pause
resets.
Undesired-false
Six-four
pilot flame
flash, three
sensed.
second
System auto
pause
resets.
Seven flash, Flammable vapor
three second sensor fault
pause detected.
Eight-one
Flammable vapor
flash, three
sensor out of
second
specification.
pause
Eight-two
flash, three Temperature
second Sensor fault.
pause
Eight-three
Gas valve
flash, three
electronics fault
second
detected.
pause
Eight-four
flash, three Gas valve fault
second detected.
pause
16
16
Probable Cause
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.
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. 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.
5. Insufficient combustion air.
6. Gas pressure is out of specification.
Pilot valve stuck in open position.
Flammable vapor sensor or simulative resistance
device out of specification.
Flammable vapor sensor or simulated resistive
device out of specification.
1. Damage to temperature sensor wire.
2. Temperature sensor resistance out of range.
1. Control needs to be reset.
2. Control is wet or physically damaged.
1. Control needs to be reset.
2. Control is wet or physically damaged.
Troubleshooting
Service
Procedure
Page 19
1. Check vent or vent tables.
2 & 3 Page 20
4. Refer to venting section of
installation manual
5. Page 22
6 & 7 Page 24
1-4. Page 19
5. Refer to installation
manual
6. Page 26
Replace gas control,
page 31
Page 33
Page 33
Page 29
1. Interrupt power supply
2. Replace gas control,
page 31
1. Interrupt power supply
2. Replace gas control,
page 31