Sub Zero 690/S Service Light Flashing
Posted 27 September 2011 - 08:45 PM
Sub Zero 690/S
About a week ago the "Service" light started flashing on my Sub Zero. No other error codes. No change in temperature and no signs of excessive compressor running etc.
I went ahead and cleaned and vaccumed out the condensor coils. It had been about a year. Overall they were pretty clean. The condensor fan was running when the compressor was on. I powered down the unit and the service light reset. I had my fingers crossed but about two days later the service light came back on.
I went and read through some of the old forum postings. Seems like the popular options are sealed system leak in the evaporator or a thermister issue.
I put the fridge in diagnostic mode and got the following temperature readings:
I was hoping to see an error on one of the readings...
The temp settings on the control panel are set at 36deg and 2deg
Does anyone have a copy of the service manual for this unit and some guidance on what to check next?
Posted 27 September 2011 - 11:11 PM
Become an Apprentice Appliantologist and Enjoy Special Perks
... Does anyone have a copy of the service manual for this unit
Need parts? Call our Parts Department now! 877-803-7957
Posted 28 September 2011 - 06:12 AM
Posted 28 September 2011 - 07:30 AM
is the coil completely and evenly frosted? or is the frost confined to the upper left hand corner or just the first couple of passes?
- Samurai Appliance Repair Man likes this
Posted 12 October 2011 - 08:56 AM
I only managed to leave the fridge running for 30-40 minutes before I had to put it back together and head to work. Here is a picture of the coil after running for a bit. it looked like it was starting to frost up pretty evenly.
I did go ahead and plug and un-plug the molex connectors for the thermisters a few times to try to clean up the connections. I reset the fridge (power off/on) and loaded it back up.
Posted 12 October 2011 - 09:19 AM
Is the evaporator fan running?
- Comstock_Services likes this
Posted 12 October 2011 - 09:47 AM
I haven't checked the freezer side. I guess the service light would trip for either side. Since both sides appear to be holding temp, I assumed the fridge side based on prior posts from people.
I bought the unit second hand. The prior owner mentioned that it had a compressor replaced early in its life. I think freezer side but I'm not sure. I do remember seeing high and low side taps on the lines but to be honest I'm not sure what side they were on or whether they were installed by the factory.
There is a different sticker placed on the factory label for the freezer side refrigerant amount. I think it said 9 ounces.
Should the next step be to check the frost pattern on the freezer side or hold tight? Should I view the 2 week temp history to see if there is some anomaly? Would one bad data point out of the 168? cause the error?
Posted 16 October 2011 - 06:00 PM
Posted 16 October 2011 - 06:36 PM
Posted 16 October 2011 - 06:39 PM
Posted 16 October 2011 - 07:00 PM
Posted 16 October 2011 - 07:04 PM
Posted 26 November 2011 - 07:36 PM
Well, I went online and got a new fan motor for $62. The new motor is alot stronger than the old one (noisier now..). It's been running good for 2 weeks now. Guess the old motor just was getting slower and not moving enough air across the coils.
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users