Thetford N3000 Series Troubleshooting Manual page 6

Error code 3: Gas lockout because flame fails to
Yes
Repair connection or damage,
turn refrigerator off and on, still
error code 3?
Yes
Check if injector of the burner
is clean and the flame is dense
and blue
Yes
Check if the gas pressure is
between 30 an 35 mb
Yes
Production date of the fridge?
ignite within 30 sec.
No
Check if the
gas valve is
open
No
Yes
No
Before 22-6-2015?
Serial number < E173S....
After 22-6-2015?
Serial number >/= E173S.....
Yes
Check the gas
installation
Use for LED:LED KIT:SR 691138
Use for LCD:LCD KIT:SR 691139
Replace power board assembly
N3000 - series
No
Solved
No
Replace the
gas valve
No
Clean burner
and injector.
Replace the
burner in case
of bad
combustion
(691101)