Thetford N3000 Series Troubleshooting Manual page 18

Inadequate performance on 12 VDC source and no
Check if the thermistor is
th
properly fitted on the 5 fin from
the right inside the cooling
cabinet.
Yes
Check if the input at the DC HC
poles of the power board is
>12V when the 12V heater is
enabled
Yes
Check if the input at the heater
connection to the power board
is > 12V
No
Production date of the fridge?
error code.
!!! Do the testing of the fridges
on the manual mode of this
source !!!
Yes
Check if the DC heater is properly
installed.
Yes
Check if the heater is using
current (+/- 15 A large fridges and
+/- 11 A small fridges)
Yes
Contact Thetford
Before 22-6-2015?
Serial number < E173S....
After 22-6-2015?
Serial number >/= E173S.....
No
No
No
No
Use for LED:LED KIT:SR 691138
Use for LCD:LCD KIT:SR 691139
Replace power board assembly
N3000 - series
Install
thermistor on
the right
place.
DC HC input
issue
Install the DC
heater
properly
Replace DC
heater
(691101)