Bob for Model Number GLTF2940FS2 Fridigdaire Gallery series front load washer beeps and displays E90. I googled this and found it is a 'general' error code indicating loss of communication between the control panel and 'main board'. My first question is what is the 'main board'? Is this the motor control board? I removed the front panel and reseated all the connectors on the control panel. After reassembly, it *may* work once but then reverts to displaying 'E90'. I've reseated every connector (and cleaned every pin) multiple times but I cannot get the error to resolve permanently. Any suggestions?
Answer Bob, "The E90 error code is not a specific code. The error code E90 is just a group error code. It is indicating a communication error between the two boards in your machine. It does not indicate where the problem may be. A power glitch may have caused the E90 error code or a loose connection. One of the control boards could have failed. If it did not clear by unplugging the washer". The "main" control board is located behind the control panel on the front of the washer 137006000 the motor control board 134743500 is located inside the cabinet, mounted to the washer base plate/frame. The first step to take is check and clean all the wiring connections at both boards, electrical contact cleaner will be a good source for cleaning any connections or pins on the boards or in the harness. If all checks are OK and clean, and the problem persists, then replace the "main" control board. Read More... Answered by AppliancePartsPros.com | Wednesday, November 14, 2012