Norcold 2118 - Fault Code Troubleshooting Flowchart; Diagnosing the LI oP Fault Code

SERVICE MANUAL
19
www.norcold.com
Re-
move power
board cover. Is
there 12 VDC between
the TMC GND terminal and
power board LIMIT_IN
terminal?
1. Repair blue limit in wire and/or connections as
needed.
2. If oP LI code clears, the repair is complete.
3. If oP LI code remains, return to BEGIN pro-
cess on this owchart.
Remove
power board
cover. Is there 12
VDC between the gas valve
bracket and power board
LIMIT_OUT
terminal?
1. Repair red limit out wire and/or connections
as needed.
2. If oP LI code clears, the repair is complete.
3. If oP LI code remains, return to BEGIN pro-
cess on this owchart.
Replace
Power board
Replace
Power board
Fault Codes, cont’d.
“LI” “oP” fault code is displayed
on front of refrigerator.
BEGIN
Is TMC
red light on
solid? (Tempera-
ture Monitor Control)
Is TMC
red light
ashing?
Is
TMC
wired
according to
the wiring diagram/
schematic?
A
Go to TMC RED LIGHT FLASHING on
next page.
B
Go to TMC RED LIGHT SOLID on
page 21.
1. Connect or repair connections as needed.
2. If oP LI code clears, the repair is complete.
3. If oP LI code remains return to BEGIN process
on this owchart.
Is there
12 VDC
between the GND
and +12V terminals of
the TMC?
Is there
12 VDC
between the GND
and +12V OUT termi-
nals of the TMC?
Replace the
TMC
Is there
12 VDC
between the GND
and +12V terminals of
the TMC?
Yes
No
YesNo
Yes
No
Yes
Yes
No
Yes
No
No
No
No
Yes
Yes
1. Repair green ground wire and/or connections
as needed.
2. If oP LI code clears, the repair is complete.
3. If oP LI code remains, return to BEGIN pro-
cess on this owchart.