norcold refreg no cool on AC or gas need to reset

I would like to thank bdpreece and dougrainer for coming to my rescue. With your help, my refregerator is now working again. Its great when people come together and help one another in these times. With the right information I was able to reset the power board and restart the unit. It is working well again. Again thanks to you both. Keysjunk, Key Largo, Fl.

The PROBLEM with the Internet is this, IF you are NOT trained you cannot be sure of what you read pertains to YOUR problem. Below is the reset for YOUR refer. The P2-2 is the 6 pin connector in the upper LH corner that has 4 wires. The JUMPER to Ground is the empty slot next to the red wire on the end. Doug

Procedure 3 pertains to these refrigerators:
Model Serial No. Manufacture Date
N61/N81 9056492 and higher After 3/23/2006
N621/N821 9126825 and higher After 4/11/2006
N623/N823 8970881 and higher After 3/1/2006
N64/N84 9044284 and higher After 3/22/2006
N64.3/N84.3 8938728 and higher After 2/21/2006





1. Turn OFF the refrigerator.
2. Disconnect the following from power board:
a. 12 Vdc positive and negative wires.
b. AC power cord.
c. Spark/sense electrode assembly wires.
3. Remove the power board cover.
4. Reconnect 12 Vdc positive and negative wire.
5. Turn ON the refrigerator. It should be operating in the Manual AC mode (AC power cord disconnected from the power board).
6. Insert one end of a piece of multi-stranded wire (10 gauge works well) whose insulation is stripped 1/2" on both ends, into the P2-2 opening and hold into place.
7. Place the other end of the multi-stranded wire to ground (metal back panel) and hold it in place for a minimum of 10 seconds.
8. Turn OFF the refrigerator.
Entering the diagnostic mode of operation and then clearing fault history screen 6 resets the no cool error. This procedure is found on page 66.
9. Turn ON the refrigerator. If "n" or "no co" code displays, repeat steps 7-9.
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.
c. AC power cord.
c. 12 Vdc positive and negative wires from the power board.
14. Place refrigerator in service.

Are you sure about not having a pin 15. I find two sets of instructions for new and old style boards resetting and both reference pin 15.

" 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"

If not how about disconnecting from power overnight then unhooking the batteries that should kill everything and allow time for any capacitors to bleed off then it should reset when you hook back up to 12V. Good luck and let us know if you get it going.