Burner Ignites But Flame Will Not Hold - Norcold 3163 Service Manual

Is the DC volt-
YES
age at terminal
block between
10.5 - 15.4 VDC?
NO
Correct DC
voltage input.
Remove white
YES
wires and jump
interrupter
terminals.
YES NO
Does flame
hold?
Replace
relighter.
Note: If the negative DC supply connection is lost, the flame indicator light will remain on all the time, even without
the flame present.

Burner Ignites But Flame Will Not Hold

YES
Is refrigerator's
Is the main
manual shut-off
gas supply on?
valve on?
NO
Turn manual
Turn main
shut-off valve
gas supply on.
Are white wires Is interrupter
YES
from relighter connection at
to interrupter safety valve
secure & tight? tight?
NO
Secure wire Tighten
connections. connection.
Remove jumper and reconnect white wires.
Check for voltage at terminals of interrupter.
(Refer to Figure 10 for correct method of measuring milli-volts)
10-15 milli-volts
0 milli-volts on
on both
both terminals.
terminals.
Replace Replace
thermocouple. safety valve.
Is vent terminal
YES
housing free
from
obstructions?
NO NO
Clear vent
terminal of
on. obstruction.
Is thermocouple
YES
connection at
the interrupter
tight?
NO NO
Tighten
connection.
16-30 milli-volts
on one terminal,
0 milli-volts on
the other.
Replace
interrupter.
16
YES YES
Is gas supply
pressure at
10.5" - 11" W.C.?
NO
Adjust main
gas pressure
to 11" W.C..
Is tip of the
YES YES
thermocouple in
flame and clean
of carbon?
NO
Reposition
or clean
thermocouple.
16-30 milli-volts
on both
terminals.
Replace
safety valve.
Set thermostat
to maximum
setting.
Is gas pressure
at pressure tap
tee between
10.5 - 11" W.C.?
NO
Replace
thermostat.