Indoor Unit; Outdoor Unit; Error Display - Friedrich MW09TC3E Service Manual

INDOOR UNIT

OUTDOOR UNIT

E R R O R
Error

The OPERATION and TIMER lights operate as follows according to the
error contents.

Error display

0.5 sec
ON
OPERATION
light
OFF
5 sec
0.1 sec
ON
TIMER
light
OFF
0.1 sec
0.5 sec
ON
OPERATION
light
OFF
5 sec
0.1 sec
ON
TIMER
light
OFF
0.1 sec
Error display (PCB)
LED D16 blinking display
0.1 sec ON / 0.1 sec OFF
LED D17 blinking display
0.1 sec ON / 0.1 sec OFF
LED D18 blinking display
0.1 sec ON / 0.1 sec OFF
D I S P L A Y
Error contents
0.5 sec
Two quick
flashes
repeated
Room temperature thermistor abnormal
temperature detected
0.1sec
ON/OFF
repeated
0.5 sec
Two quick
flashes
repeated
Piping thermistor abnormal temperature
detected
0.1sec
ON/OFF
repeated
Error contents
THERMISTOR DISCHARGE PIPE B
abnormal
THERMISTOR OUTDOOR
TEMPERATURE abnormal
THERMISTOR DISCHARGE PIPE A
abnormal
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