A data overrun is behind 90-0-93 on Classic Built-In refrigerators like the BI-36UFD/S and BI-36U/S. A microcontroller is receiving information faster than it can process it, so new data overwrites messages that were never read. The…
A data overrun is behind 90-0-93 on Classic Built-In refrigerators like the BI-36UFD/S and BI-36U/S. A microcontroller is receiving information faster than it can process it, so new data overwrites messages that were never read. The control logs it among microcontroller problems. You may see frozen or flickering displays, commands that seem to vanish and the occasional self-restart, while the compressor and fans usually keep working on their last instructions.
1. Write down 90-0-93 along with the date. 2. Power down at the breaker for two minutes, then restart. 3. Use the keypad normally and see whether commands register. 4. If the display freezes again, avoid repeated key presses, which only add to the backlog, and call us.
No. A timeout (90-0-81) is a missing reply, while a data overrun is too much data arriving before the last batch was processed. Both point to the microcontroller side of the control, but we test them in a different order and look at different wiring first.
When the controller is overwhelmed it may drop display updates first. That is why a frozen or lagging screen often comes with this code, even while the cabinet stays cold.
We test the communication path and each board, then recommend only what the readings support. You get a written price beforehand and 30 days of workmanship coverage afterward.
A technician diagnoses it on site and gives you the price in writing before any work starts.
