Friedrich FPHMR18A3A Service Manual page 107

TROUBLESHOOTING
Blank Display/Indoor Unit Door Micro Switch
When the Timer On/Clock button is pressed you will see a temperature on the display, but still no system operation. After a few
seconds, the display will drop the temperature leaving just the Wi‑Fi and Timer icons. Still no indoor unit operation. See Figure 704.
Fig. 704 (Momentary Temp. Display)
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