Friday, January 20, 2012

Friedrich Air Conditioners Error Detection


Models
Indoor Units
MW09Y3H
MW12Y3H
Outdoor Units
MR09Y3H
MR12Y3H


ERROR DETECTION

Error = Serial signal error
Indoor unit LED
Operation LED = Off
Timer LED = 2 flash
Coil dry LED = off
Wired remote control = 01
Error = Serial signal (reverse) error, at operation start up

Error = Serial signal error
Indoor unit LED
Operation LED = Off
Timer LED = 3 flash
Coil dry LED = off
Wired remote control = 01
Error = Serial signal (reverse) error, during operation

Error = Serial signal error
Indoor unit LED
Operation LED = Off
Timer LED = 4 flash
Coil dry LED = off
Wired remote control = 13
Error = Serial signal (forward) error, at operation start up

Error = Serial signal error
Indoor unit LED
Operation LED = Off
Timer LED = 5 flash
Coil dry LED = off
Wired remote control = 13
Error = Serial signal (forward) error, during operation

Error = Serial signal error
Indoor unit LED
Operation LED = Off
Timer LED = 8 flash
Coil dry LED = off
Wired remote control = 00
Error = Wired remote control error

Error = Indoor unit thermistor error
Indoor unit LED
Operation LED = 2 flash
Timer LED = 2 flash
Coil dry LED = Off
Wired remote control = 02
Error = Indoor air thermistor error

Error = Indoor unit thermistor error
Indoor unit LED
Operation LED = 2 flash
Timer LED = 3 flash
Coil dry LED = off
Wired remote control = 04
Error = Heat exchanger middle thermistor error

Error = Outdoor unit thermistor error
Indoor unit LED
Operation LED = 3 flash
Timer LED = 2 flash
Coil dry LED = off
Wired remote control = 0C
Error = Discharge pipe thermistor error

Error = Outdoor unit thermistor error
Indoor unit LED
Operation LED = 3 flash
Timer LED = 3 flash
Coil dry LED = off
Wired remote control = 06
Error = Heat exchanger thermistor error

Error = Outdoor unit thermistor error
Indoor unit LED
Operation LED = 3 flash
Timer LED = 4 flash
Coil dry LED = off
Wired remote control = 0A
Error = Outdoor air thermistor error

Error = Indoor unit control error
Indoor unit LED
Operation LED = 4 flash
Timer LED = 2 flash
Coil dry LED = off
Wired remote control = 20
Error = Manual auto button welded

Error = Outdoor unit control error
Indoor unit LED
Operation LED = 5 flash
Timer LED = 2 flash
Coil dry LED = off
Wired remote control = 17
Error = Current trip error

Error = Outdoor unit control error
Indoor unit LED
Operation LED = 5 flash
Timer LED = 3 flash
Coil dry LED = off
Wired remote control = 18
Error = CT abnormal

Error = Outdoor unit control error
Indoor unit LED
Operation LED = 5 flash
Timer LED = 5 flash
Coil dry LED = off
Wired remote control = 1A
Error = Compressor location detection error

Error = Outdoor unit control error
Indoor unit LED
Operation LED = 5 flash
Timer LED = 6 flash
Coil dry LED = off
Wired remote control = 1B
Error = Outdoor unit fan drive system abnormal

Error = Indoor fan motor error
Indoor unit LED
Operation LED = 6 flash
Timer LED = 2 flash
Coil dry LED = off
Wired remote control = 12
Error = Abnormal lock (upper fan motor)

Error = Indoor fan motor error
Indoor unit LED
Operation LED = 6 flash
Timer LED = 3 flash
Coil dry LED = off
Wired remote control = 12
Error = Abnormal rotation (upper fan motor)

Error = Refrigerant cycle error
Indoor unit LED
Operation LED = 7 flash
Timer LED = 2 flash
Coil dry LED = off
Wired remote control = 0F
Error = Discharge temperature abnormal

Error = Refrigerant cycle error
Indoor unit LED
Operation LED = 7 flash
Timer LED = 3 flash
Coil dry LED = off
Wired remote control = 24
Error = Cooling high pressure abnormal rise

Error = Optional function error
Indoor unit LED
Operation LED = 8 flash
Timer LED = 2 flash
Coil dry LED = off
Wired remote control = 19
Error = Active filter abnormal (first time)

Error = Optional function error
Indoor unit LED
Operation LED = 8 flash
Timer LED = 3 flash
Coil dry LED = off
Wired remote control = 19
Error = Active filter abnormal (second time)

Error = Optional function error
Indoor unit LED
Operation LED = 8 flash
Timer LED = 4 flash
Coil dry LED = off
Wired remote control = 25
Error = PFC circuit error

Error = Model information error
Indoor unit LED
Operation LED = 0.1 sec on/off
Timer LED = 0.1 sec on/off
Coil dry LED = 0.1 sec on/off
Wired remote control = 11
Error = Model information error

Indoor unit
MS36Y3F
Outdoor unit
MR36Y3F


ERROR CONTENTS (Indoor unit)
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.

OPERATION lamp (RED) = ○
TIMER lamp (GREEN) = ○
SWING lamp (ORANGE) = X
Error contents = Indoor EEPROM abnormal

OPERATION lamp (RED) = ○
TIMER lamp (GREEN) = ○
SWING lamp (ORANGE) = ○
Error contents = Outdoor EEPROM abnormal

OPERATION lamp (RED) = (2 times) ●
TIMER lamp (GREEN) = ○
SWING lamp (ORANGE) = X
Error contents = Indoor room temperature sensor open

OPERATION lamp (RED) = (2 times) ●
TIMER lamp (GREEN) = ○
SWING lamp (ORANGE) = ○
Error contents = Indoor room temperature sensor shortcircuited

OPERATION lamp (RED) = (3 times) ●
TIMER lamp (GREEN) = ○
SWING lamp (ORANGE) = X
Error contents = Indoor heat exchanger temperature sensor open

OPERATION lamp (RED) = (3 times) ●
TIMER lamp (GREEN) = ○
SWING lamp (ORANGE) = ○
Error contents = Indoor heat exchanger temperature sensor shortcircuited

OPERATION lamp (RED) = (4 times) ●
TIMER lamp (GREEN) = ○
SWING lamp (ORANGE) = X
Error contents = Float switch operated

OPERATION lamp (RED) = (5 times) ●
TIMER lamp (GREEN) = ○
SWING lamp (ORANGE) = X
Error contents = Indoor signal abnormal

OPERATION lamp (RED) = (6 times) ●
TIMER lamp (GREEN) = ○
SWING lamp (ORANGE) = X
Error contents = Indoor fan abnormal

OPERATION lamp (RED) = ○
TIMER lamp (GREEN) = (2 times) ●
SWING lamp (ORANGE) = X
Error contents = Outdoor power source connection abnormal

OPERATION lamp (RED) = ○
TIMER lamp (GREEN) = (3 times) ●
SWING lamp (ORANGE) = X
Error contents = Outdoor heat exchanger temperature sensor open

OPERATION lamp (RED) = ○
TIMER lamp (GREEN) = (3 times) ●
SWING lamp (ORANGE) = ○
Error contents = Outdoor heat exchanger temperature sensor shortcircuited

OPERATION lamp (RED) = ○
TIMER lamp (GREEN) = (4 times) ●
SWING lamp (ORANGE) = X
Error contents = Outdoor temperature sensor open

OPERATION lamp (RED) = ○
TIMER lamp (GREEN) = (4 times) ●
SWING lamp (ORANGE) = ○
Error contents = Outdoor temperature sensor shortcircuited

OPERATION lamp (RED) = ○
TIMER lamp (GREEN) = (5 times) ●
SWING lamp (ORANGE) = X
Error contents = Outdoor discharge pipe temperature sensor or compressor temperature sensor open

OPERATION lamp (RED) = ○
TIMER lamp (GREEN) = (5 times) ●
SWING lamp (ORANGE) = ○
Error contents = Outdoor discharge pipe temperature sensor or compressor temperature sensor shortcircuited

OPERATION lamp (RED) = ○
TIMER lamp (GREEN) = (6 times) ●
SWING lamp (ORANGE) = X
Error contents = Outdoor high pressure abnormal

OPERATION lamp (RED) = ○
TIMER lamp (GREEN) = (7 times) ●
SWING lamp (ORANGE) = X
Error contents = Outdoor discharge pipe temperature or compressor temperature sensor abnormal

○ = 0.1s ON/0.1s OFF (flash)
● = 0.5s ON/0.5s OFF (flash)
X = OFF


1. Make a TEST RUN in accordance with the installation instruction sheet for the indoor unit
2. OUTDOOR UNIT LEDS
When a malfunction occurs in the outdoor unit, the LED on the circuit board lights to indicate the error.
Refer to the following table for the description of each error according to the LED.

LED = 1flash
Error Contents = Communication error (Indoor unit - Outdoor unit)

LED = 2 flash
Error Contents = Discharg pipe temperature sensor

LED = 3 flash
Error Contents = Outdoor heat exchanger temperature sensor

LED = 4 flash
Error Contents = Outdoor temperature sensor

LED = 7 flash
Error Contents = Compressor temperature sensor

LED = 8 flash
Error Contents = Heat sink temperature sensor

LED = 9 flash
Error Contents = Pressure switch abnormal

LED = 12 flash
Error Contents = IPM error

LED = 13 flash
Error Contents = Compressor rotor position cannot detect

LED = 14 flash
Error Contents = Compressor cannot operate

LED = 15 flash
Error Contents = Outdoor fan abnormal (upper fan)

LED = 16 flash
Error Contents = Outdoor fan abnormal (lower fan)

LED = lighting
Error Contents = No error
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