Community Forums

rickwai · 04-01-2014, 05:22 AM

My N641 is not shutting off. It is cooling great, but it has the fridge at 10F!! I Have a flashing "no" on display. I went thru daignostics and thermister temp said 10F which seems like it is working. Whether it is in LP or AC it wont shut off and I cant get the "no" code it clear using the #6 diag. screen or the jumper wire reset. I cant find anything for just "no", everything I find is the no cooling code "no co". Any advice would be appreciated!!

jesilvas · 04-01-2014, 10:00 AM

Do you have an actual thermometer in there or are you going just off thermister reading?

rickwai · 04-01-2014, 03:22 PM

I am going off the thermister reading. I Know I should check w/ a thermometer, but there was frost on the fins in the back of the fridge near the thermister probe. Say if it is set on a 4-5 what temp should I expect? Secondly it thermister is reading 10f if should not be running I wouldnt think?

jesilvas · 04-01-2014, 03:37 PM

4-5 temp setting nets 30*F or so in the box. Fins would be 25*F or so.

So it kind of sounds like the board is just not working right since it's obviously getting the right readings and interpreting them right.

rickwai · 04-01-2014, 05:28 PM

Ok. I had temp set at 9. I will try setting temp at 4 w/ a thermo inside. I am still puzzled with the flashing "no"... Is all the logic in the main circuit board? Is the display just buttons and a lcd?

rickwai · 04-09-2014, 07:09 AM

I check temp on a 3 and temp was 33. It is cycling off and on and seems to be working normal but i still have a "no" flashing. The board in it came out of a n641 w/ a single digit display. This fridge n641 has a 2 digit display. R the boards different for 1 or 2 digit displays?

jesilvas · 04-09-2014, 08:16 AM

The boards possibly can be different. Did you match part numbers?

rickwai · 04-10-2014, 03:59 AM

I did not. The owner had a fridge w/ single digit display that cooling unit went out on. He bought a 2 digit display fridge w/ a good cooling unit and when he turned it on he determined board was bad on "good" fridge so he started swapping parts? I know it sounds like a mess!! I checked it last night. On 2 temp was 36F. On 3 temp inside fridge was 33F. It seems like all is working correct except it is flashing "no". Also when going thru diagnostic menu there is no "0" and some of the menus have segments lit that dont corrilate to the book.