Troubleshooting E11

How to Troubleshoot Error Code E:11 on Fujitsu General, Fuji, or Airstage Split and Multisplit Air Conditioner
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The E:11 error code on your air conditioner indicates a problem with the communication between the indoor and outdoor units. This can be caused by a number of factors, including loose or damaged wiring, a faulty serial signal, or a problem with the main control board. In this video, we will walk you through the steps to troubleshoot the F3 error code and get your air conditioner working again.
00:00 Error 11
00:14 Explanation
00:50 Check Point 1
01:45 Check Point 2
02:09 Check Point 3
02:49 Check Point 4
03:55 Check Point 5