SOURCE: sharp ar-m205 error code E7 11
U HAVE TO UPGRADE THE FIRM WARE BY ENTERING SIMULATION 49-1 THE VALUE IS d THEN UPDATE THE FIRM WARE IF U HAVE IT
SOURCE: I have an 18 K unit with E7 error on heat mode
I just installed a YMGI brand mini-split AC and had exactly the same problem. AC worked fine, but when I tried using heat mode I would get an E7 error.
After talking to their tech support I discovered the problem. There was a separate cable that needed to be connected that I'd forgotten to hook up. This cable runs from the internal unit to the outdoor unit and connects a defrost sensor.
In my case I had totally missed that cable when I installed the unit. After running another line and connecting it the unit is now functioning normally.
If this is a new install, then make sure all your cables have been run. If it was previously working, then check to see if one of the cables had become disconnected. If it's not the cable, then it's probably the sensor.
Good luck
SOURCE: cannon pixma mp145 printer error code e7 & e2
E2: Reload the paper correctly and press [Black] or [Color].
E7: The cartridges are not installed in place.
These are from the manual.
SOURCE: E4 code is showing on my GE room air conditioner APE07AHM1
There is a water holding tank on the right lower side (when u are looking at the front), empty it and the unit comes back on.
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