Electronic-control Classic Built-In models, including the BI-36U/S, set 90-0-72 when the control board tests its own flash memory and finds it bad. Unlike a single failed save, this tells you the memory itself did not pass…
Electronic-control Classic Built-In models, including the BI-36U/S, set 90-0-72 when the control board tests its own flash memory and finds it bad. Unlike a single failed save, this tells you the memory itself did not pass the board's check. The refrigerator may keep cooling on its last instructions, yet settings, alarms and display functions become unreliable, and the unit may reboot on its own.
1. Write the code down and note any odd display behavior. 2. Switch off the circuit breaker for a minute, then restore power. 3. If the code clears, watch temperatures for a day. 4. If it returns at once, keep doors closed and schedule a visit.
They are related. 90-0-70 reports that one write failed, while 90-0-72 says the memory itself tested bad. The second one more often leads to a board replacement.
Often yes, for a short time, because cooling may continue on the last instructions. Check cabinet temperatures daily with a thermometer and call us if they drift.
We confirm the reading, check the power supply to the board and then quote the board and labor in writing. Nothing is replaced until you approve, and our workmanship is covered for 30 days.
A technician diagnoses it on site and gives you the price in writing before any work starts.
