Norcold N510 - N Fault Code - No cooling detected by the controls - N510

DRAFT
NOT FOR PUBLIC RELEASE
20
www.norcold.com/cda
N500/N510 Models
Refrigerator Service Manual
LP GASAC
AUTO
Fault indicator displayed:
NO
YES
Check for completion of
cooling cycle after resetting
power board.
NO
Cooling unit is good. Recheck for
ventilation obstructions and leveled
operation. See pages 21-22 and page 32.
YES
Check for cooling at fin
assembly.
"n"code
shows before
cycle end?
1. Replace cooling unit if "n" shows
before completing a full cooling cycle.
2. Reset power board as shown in
figure and described in procedure.
Cooling
detected?
1. Check for ventilation obstructions and
leveled operation.
2. Reset power board as shown in Figure
12 and described in procedure below.
N Fault Code - No cooling detected by the controls - N510
Power Board Resetting Procedure
1. Turn OFF the refrigerator.
2. Disconnect the following from power board:
a. 12 Vdc positive and negative wires.
b. AC power cord.
c. Solenoid gas valve wires.
d. Spark/sense electrode assembly wires.
3. Remove the power board cover.
4. Reconnect 12 Vdc positive and negative wires.
5. Turn ON the refrigerator.
6. Locate Pin 15 on 16 pin connector (P1). Pin 15 is the
empty socket to the right of the white/violet wire on
the top row. See Figure 12.
7. Using an insulated jumper wire, short Pin 15 to the
power board ground lug for 10 - 15 seconds. A click
sound will indicate when the controls are reset. See
Figure 12.
10. Turn OFF the refrigerator.
11. Disconnect the 12 Vdc power positive and negative
wires from the power board.
12. Install the power board cover.
13. Reconnect the following to the power board:
a. Spark/sense electrode assembly wire.
b. Solenoid gas valve wires.
c. AC power cord.
d. 12 Vdc positive and negative wires from the
power board.
14. Place refrigerator in service.
8. Turn OFF the refrigerator.
9. Turn ON refrigerator. If "n" code displays, repeat
steps 7 - 9.
Figure 12. Resetting the power board
NOTE
A jumper wire to short Pin 15 to ground can be made
from a six inch long insulated 22 AWG wire with a 1/2
inch of insulation stripped from each end.
Pin 16
White/violet wire
Pin 15
Ground Lug
Insulated wire jumper
22 AWG with 1/2" long stripped ends