DV Series
8
Observe colored 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
Control Status
Probable Cause
Service Procedure
None (LED not
on or flashing)
Millivolt power is not
present. Light pilot.
Gas valve is functioning
normally. Gas valve is not
powered. Light pilot.
If the pilot will not stay lit
replace pilot assembly. If
problem persists replace gas
control.
One flash every
four seconds
(LED green)
Not an error. Indicates
pilot is lit and main
burner is off.
The knob can be turned to a
desired setpoint temperature.
Normal operation.
One flash every
second
(LED green)
Not an error. Indicates
main valve is open
and main burner is lit.
None. Control will automatically
shut main burner off when water
temperature reaches the
setpoint temperature.
Normal operation.
Two flashes
and three
second pause
(LED yellow)
Low thermopile voltage;
main valve not turned
on.
Check thermopile and its
connections. Check pilot flame.
1. See Service Procedure II
2. See Service Procedure VI
Four flashes
and three
second pause
(LED red)
Temperature cut-out
limit reached, causing
shutdown.
Check the valves and the water
temperature sensor. Reduce
the water temperature setpoint.
Verify control operation, replace
if exceeding setpoint.
Replace gas control.
Five flashes
and three
second pause
(LED red)
Electronics, sensor, or
gas valve fault
detected.
Check water temperature
sensor and its connection for
open circuits, shorts, or
differences in resistance
between the two sensor
elements.
Replace gas control.
Solid ON
(LED red)
Not an error
–
indicates
that the control is in
OFF position.
None; wait until LED turns off to
restart system.
LED will go out and the
control will function normally
once the pilot is lit.
Troubleshooting Gas
Control V2
8
