Bradford White ECO-DEFENDER EURG2DV40S N Series Service Manual page 6

DV Series
Observe green LED indicator on
electronic gas control. Status flash
codes are displayed with a three
second pause before repeating.
Check and repair the system as
noted in the troubleshooting table
below.
LED Status
None (LED not
Pilot assembly is not lit
on or flashing)
1. If setpoint knob is in "PILOT"
position, then pilot flame is
detected. Turn setpoint knob
One flash and
to desired setting.
three second
2. If the setpoint knob is
pause
already at the desired
setting, the water heater is
satisfied.
Short flash
Gas control is calling for heat (no
once per
fault).
second
Setpoint knob has been recently
LED on
turned to the "OFF" position.
continuously
Wait until LED goes out before
(solid)
attempting to relight.
Two flashes Weak pilot signal detected.
and three System will reset when pilot
second pause flame is sufficient.
Three flashes
Insufficient water heating.
and three
System will reset.
second pause
6
6
Control Status
Troubleshooting V1
Probable Cause
Gas control is not
powered. Light Pilot.
1. Gas control is
powered and waiting
for setpoint knob to
be turned to a water
temperature setting.
2. Water heater is
satisfied and
operating normally.
Tank temperature
below setpoint of
thermostat.
Setpoint knob was
turned to "OFF"
position.
1. Thermopile failure.
2. Unstable pilot.
3. Pilot tube block or
restricted.
1. Thermal sensor out
of calibration.
2. Faulty gas control.
Service Procedure
If the pilot will not stay lit
replace pilot assembly. If
problem persists, replace
gas control.
Normal operation.
Normal operation.
LED will go out and the
control will function normally
the pilot is lit.
1.See service procedure IV.
2.See service procedure II.
3.See service procedure II.
Replace gas control.