Bradford White RG130T N Series Service Manual page 11

Honeywell V2 Gas Control Troubleshooting Chart
Observe colored LED indicator on 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 Control Status
None (LED not on Millivolt power is not
or flashing) present. Light pilot.
One flash every Not an error. Indicates
four seconds pilot is lit and main
(LED green) burner is off.
One flash every Not an error. Indicates
second main valve is open and
(LED green) main burner is lit.
Two flashes and
three second
Low thermopile voltage;
pause (LED
main valve not turned on.
yellow)
Four flashes and
Temperature cut-out
three second
limit reached, causing
pause (LED red) shutdown.
Five flashes and
Electronics, sensor, or
three second
gas valve fault detected.
pause (LED red)
Not an error–indicates
Solid ON
that the control is in OFF
(LED red)
position.
Flammable Vapor Ignition Resistant Water Heaters
Gas valve is functioning
normally. Gas valve is not
powered. Light pilot.
The knob can be turned to a
desired setpoint temperature.
None. Control will automatically
shut main burner off when water
temperature reaches the setpoint
temperature.
Check thermopile and its
connections. Check pilot flame.
Check the valves and the water
temperature sensor. Reduce the
water temperature setpoint.
Verify control operation, replace
if exceeding setpoint.
Check water temperature sensor
and its connection for open
circuits, shorts, or differences in
resistance between the two
sensor elements.
None; wait until LED turns off if
you want to restart system.
11
Probable Cause Service Procedure
If the pilot will not stay lit
replace pilot assembly. If
problem persists, replace
gas control.
Normal operation.
Normal operation.
1. See Service Procedure IV
2. See Service Procedure II
3. See Service Procedure II
Replace gas control.
Replace gas control.
LED will go out and the
control will function normally
once the pilot is lit.
11