Troubleshooting - Bradford White 238-44219-00J Installation And Operating Instruction Manual

TROUBLESHOOTING CHART
LED Status
None (LED not on or
flashing)
One flash and three
second pause.
LED strobe (two quick
flashes) and three second
pause
LED on continuously.
Two flashes and three
second pause.
Three flashes and three
second pause.
Four flashes and three
second pause.
Five flashes and three
second pause.
Control Status
Millivolt power is not
present. Light pilot.
If set point knob is in
"PILOT" position then pilot
flame is detected.
faults).
Thermostat calling for heat
(no faults)
Set point knob has been
recently turned to the
"OFF" position.
Weak pilot flame detected.
System will reset when
pilot flame is sufficient.
Insufficient water heating.
System will reset.
Excessive tank
temperature. System must
be reset.
Temperature Sensor fault.
26
1. Gas valve is functioning
normally
2. Gas valve is not powered.
Light pilot
Gas valve is powered and waiting
for the set point knob to be turned
to a water temperature setting. If
(no
the set point knob is at desired
setting the thermostat is satisfied.
Water heater operating normally.
Set point knob was recently turned
to "OFF" position. Wait until LED
goes out before attempting to
relight
1. Unstable pilot.
2. Pilot tube blocked or
restricted.
1. Temperature sensor out of
calibration.
2. Possible short.
1. Temperature sensor out of
calibration.
2. Faulty gas valve.
1. Damage to the temperature
wire.
2. Temperature sensor
resistance out of range.
3. Replace temperature sensor.
4. If temperature sensor
replacement does not correct
the problem; Verify control is
not wet or physically damaged
5. Turn set point knob to "OFF"
position. Turn set point knob
to "PILOT" position and light
pilot.
6. Replace gas valve if five flash
error persists.
Probable Cause