Friedrich MR36Y3F, Service Manual

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ERROR CONTENTS
(Indoor unit)
Indoor EEPROM abnormal
Outdoor EEPROM abnormal
Indoor room temperature sensor open
Indoor room temperature sensor shortcircuited
Indoor heat exchanger temperature sensor open
Indoor heat exchanger temperature sensor shortcircuited
Float switch operated
Indoor signal abnormal
Outdoor signal abnormal
Indoor fan abnormal
Outdoor power source connection abnormal
Outdoor heat exchanger temperature sensor open
Outdoor heat exchanger temperature sensor shortcircuited
Outdoor temperature sensor open
Outdoor temperature sensor shortcircuited
Outdoor discharge pipe temperature sensor or compressor
temperature sensor open
Outdoor discharge pipe temperature sensor or compressor
temperature sensor shortcircuited
Outdoor high pressure abnormal
Outdoor discharge pipe temperature or compressor
temperature sensor abnormal
OPERATION
lamp (RED)
(2 times)
(2 times)
(3 times)
(3 times)
(4 times)
(5 times)
(5 times)
(6 times)
TIMER lamp
(GREEN)
(2 times)
(3 times)
(3 times)
(4 times)
(4 times)
(5 times)
(5 times)
(6 times)
(7 times)
SWING lamp
(ORANGE)
: 0.1s ON/0.1s OFF (flash) : OFF
: 0.5s ON/0.5s OFF (flash)
Error contents
SWING SWING TIMER
MANUAL
AUTO
OERATION
VERTICAL SWING lamp (Orange)
TIMER lamp (Green)
OPERATION lamp (Red)
Operation can be checked by lighting and flashing of the display section OPERATION,
TIMER, and VERTICAL SWING lamps.
Perform judgment in accordance with the following.
TEST RUNNING
When the air conditioner is run by pressing the remote control unit test run button, the
OPERATION, TIMER, and VERTICAL SWING lamps flash slowly at the same time.
ERROR
The OPERATION, TIMER, and VERTICAL SWING lamps operate as follows
according to the error contents.
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