SOURCE: The treadmill gives a E7 error message and the belt is not moving.
this error has 2 options:
1) The display board see the diagram attached,adjust the reed switch , clean and tigh the wires connector.
2) The elevation motor problem a) adjust the potentiomenter b) lube the gear and shaft c) test the motor if need replace or repair.
try to run the software calibratin for diagnose, troubleshooting.
SOURCE: Message "wasted ink tank near full" on Canon Multipass F80
Inkjet printers have a fibrous pad inside them that collects the waste
ink from cleaning the print head. Over time, this pad fills up with ink
and can no longer hold any more. When this occurs, the printer
indicates a "waste ink tank full" error.
Replacing
the waste ink absorption pads is something an authorized canon service
facility can take care of for you. Once they are replaced,
it'll be functional again.
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
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