Friedrich Kuhl Series 6000 BTU Window Air Conditioner Installation and Operation Manual - Manuel (Page 21)

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MENU
Control Panel Operation
The diAG Menu
This menu is used to access the diagnostic codes. See Figure 46.
Selecting this sub-menu shows the E that represents “Error.”
See Figure 47.
Toggle through the error codes using the arrow keys. See Figure 48.
Figure 46
MENU
Figure 47
MENU
Figure 48