Bradford White RG1D Installation & Operation Instructions page 31

Troubleshooting continued-
(Applies to URG1D models)
LED Status
None (LED not on
or flashing)
One short flash
every four
seconds
One short flash
every tw o
seconds
Alternates bright
and dim
(heartbeat)
Short flash once
every second
Tw o flashes,
three second
pause
Three flashes,
three second
pause
Four flashes,
three second
pause
Five flashes,
three second
pause
Six flashes, one
flash, three
second pause
(Soft Lockout)
Six flashes, tw o
flashes, three
second pause
(Soft Lockout)
Control Status
Electrical pow er not
present
Stand-by mode,
Thermostat is satisfied (no
faults)
Stand-by mode, Water
heater w ill not respond to
call for heat
Thermostat calling for
heat (no fault)
Weak pilot signal on last
call for heat
Damper test circuit not
w orking
Damper test circuit not
w orking
Excessive tank
temperature, system must
be reset
False pilot flame present
Failed to light pilot,
system resets after (5)
minutes
Damper test circuit not
w orking properly during
burner operation, system
auto resets after (5)
minutes
Probable Cause
Control pow er sw itch in " OFF" position.
Supply voltage interrupted.
Temperature demand is satisfied (no call for
heat)
Temperature demand disabled (no call for
heat)
Tank temperature below setpoint of
thermostat
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. Damper not in proper position or
malfunctioning - stuck in open position
2. Obstructed venting
3. Faulty damper
1. Damper not in proper position or
malfunctioning - not reaching full open
position
2. Obstructed venting
3. Faulty damper
1. Thermal w ell sensor out of calibration
2. Faulty gas valve
Pilot valve stuck in open position
1. Unstable pilot
2. Pilot tube block or restricted
3. Oxidation build-up on pilot electrode
4. Wire damage to pilot assembly or bad
connection at gas valve
1. Damper not in proper position or
malfunctioning - damper moved from full
open position during run cycle
2. Obstructed venting
3. Faulty damper
4. Damper jostled during run cycle
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