Friedrich MR09Y1F Service Manual page 10

ER RO R CO N TE NTS
Kind of error
Communication
Indoor unit
Thermistor
Outdoor unit
Thermistor
Indoor unit PCB
Outdoor unit PCB
Indoor unit fan motor
Power supply
Model distinction
2006.03.13
Indication on LED
Operation LED (red) Timer LED (green)
0.5 sec / twice
0.5 sec / three times
Off
0.5 sec / four times
0.5 sec / five times
0.5 sec / twice
0.5 sec / twice
0.5 sec / three times
0.5 sec / three times
0.5 sec / three times
0.5 sec / four times
0.5 sec / four times 0.5 sec / eight times
0.5 sec / five times 0.5 sec / six times
0.5 sec / twice
0.5 sec / six times
0.5 sec / three times
0.1 sec flashing on red and orange LED
0.1 sec flashing on all LED
Indication on wired
Contents
remote controller
Serial (reverse) error after operation
Serial (reverse) error during operation
01
Serial (forward) error after operation
Serial (forward) error during operation
Room temp. thermistor error
02
open / short
Heat exchange (middle) thermistor error
04
open / short
Heat exchange thermistor error
06
open
Outdoor temp. thermistor error
0A
open / short
Opposite VDD permanent stop protection
21
(Electric aircleaner, circuit error)
1b
Outdoor unit fan control error
Lock
12
r.p.m abnormal
No Indication Power supply abnormal
11
Model distinction error
9