- Model Number
- 427RG
- Brand
- Sub-Zero
- Age
- More than 10 years
I have a sub zero 427R wine storage / fridge. The fridge drawers have stopped cooling. Repair tech determined on first visit that it was either the control panel (on top drawer) or the control board that needed replaced. On second visit he came with parts and determined that it was the control panel that need replaced. But, big but, the part is no longer available. Based on my model and serial number I need part 4203290. This is no longer available from sub zero. Newer versions of the 427R have a redesigned control board, but they are not compatible with my specific unit. I telephoned sub zero, got a customer advocate and they confirmed that there is no replacement part available and that my unit cannot be repaired.
So I'm about to take matters into my own hands. I have a BSc in electronic engineering and quite comfortable working with electronic circuit boards. It could be a simple as a faulty relay that I could replace. I have removed the board and am ready to try and run some tests, like whether the relays are functioning or not. I'm looking for hints in what to look for.
Thanks
So I'm about to take matters into my own hands. I have a BSc in electronic engineering and quite comfortable working with electronic circuit boards. It could be a simple as a faulty relay that I could replace. I have removed the board and am ready to try and run some tests, like whether the relays are functioning or not. I'm looking for hints in what to look for.
Thanks