Framing errors are what 90-0-90 reports on Classic Built-In models such as the BI-36UFD/S. Data packets between microcontrollers are arriving with the wrong structure, so the receiving side cannot read them. The board groups this with…
Framing errors are what 90-0-90 reports on Classic Built-In models such as the BI-36UFD/S. Data packets between microcontrollers are arriving with the wrong structure, so the receiving side cannot read them. The board groups this with microcontroller problems. In daily use you might notice sluggish controls, settings that do not take, or a display that resets, while cooling may continue in the background.
1. Note 90-0-90 and when it appears. 2. Switch the breaker off, wait two minutes, then switch it back on. 3. Check whether large appliances on the same circuit switch on when the code shows up. 4. Keep doors closed and call us if the code persists.
Each message between boards has a fixed structure. A framing error means that structure arrived broken, so the receiving board threw the message away and logged 90-0-90.
Electrical noise from shared circuits can contribute. If the code lines up with a dryer or pump starting, mention it so we can check the supply as well as the boards.
No. We check the harness and connections first, since they are often enough. If a board is sending bad data, we quote it in writing before replacing it.
A technician diagnoses it on site and gives you the price in writing before any work starts.
