Friday, December 30, 2011

MITSUBISHI INVERTER MULTI-SPLIT SYSTEM SCM80ZA ERROR CODE

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(OUTDOOR UNIT)
SCM80ZA
(INDOOR UNIT)
SKM22ZA SRRM40ZA
SKM25ZA
SKM28ZA
SKM32ZA
SKM40ZA
SKM50ZA

Indoor unit indicator
RUN lamp = 1 time flash
TIMER lamp = Comes on
Outdoor unit indicator (LED5) = Stays off
Description of trouble = Indoor heat exchanger thermistor error
Cause = Broken heat exchanger thermistor wire, Connector poor connection
Conditions of flashing = When heat exchanger thermistor temperature of –20 °C or under continued for more than 3 seconds while operation is stopped. (This is not displayed during operation.)

Indoor unit indicator
RUN lamp = 2 time flash
TIMER lamp = Comes on
Outdoor unit indicator (LED5) = Stays off
Description of trouble = Room temperature thermistor error
Cause = Broken room temperature thermistor wire, Connector poor connection
Conditions of flashing = When room temperature thermistor temperature of –20 °C or under continued for more than 3 seconds while operation is stopped. (This is not displayed during operation.)

Indoor unit indicator
RUN lamp = 5 time flash
TIMER lamp = Comes on
Outdoor unit indicator (LED5) = Stays off
Description of trouble = Drain abnormality (1)
Cause = Drain at reverse gradient, Float switch defective
Conditions of flashing = Float switch motion

Indoor unit indicator
RUN lamp = 6 time flash
TIMER lamp = Comes on
Outdoor unit indicator (LED5) = Stays off
Description of trouble = Indoor fan motor error (2)
Cause = Defective fan motor, Connector poor connection
Conditions of flashing = When air conditioner is operating and indoor fan motor is turned ON, indoor fan motor speed of 400 rpm or under continued for more than 30 seconds. (Air conditioner stops.)

Indoor unit indicator
RUN lamp = Keeps flashing
TIMER lamp = 1 time flash
Outdoor unit indicator (LED5) = Stays off
Description of trouble = Outdoor temperature thermistor error
Cause = Broken outdoor thermistor wire, Poor connector connection
Conditions of flashing = When outdoor temperature sensor temperature of –40 °C or under continued for more than 3 seconds while opeation is stopped. (This is not displayed during operation.)

Indoor unit indicator
RUN lamp = Keeps flashing
TIMER lamp = 2 time flash
Outdoor unit indicator (LED5) = Stays off
Description of trouble = Outdoor heat exchanger gas pipe thermistor error
Cause = Broken heat exchanger gas pipe termistor wire, Poor connector connection
Conditions of flashing = When heat exchanger entrance thermistor temperature of –50 °C or under continued for more than 3 seconds while operation is stopped. (This is not displayed during operation.)

Indoor unit indicator
RUN lamp = Comes on
TIMER lamp = 1 time flash
Outdoor unit indicator (LED5) = 1 time flash
Description of trouble = Current cut
Cause = Compressor locking, Open phase on compressor output, Short circuit on power transformer
Conditions of flashing = When converter output current which exceeds setting value is detected. (Compressor stops.)

Indoor unit indicator
RUN lamp = Comes on
TIMER lamp = 2 time flash
Outdoor unit indicator (LED5) = 2 time flash
Description of trouble = Trouble of outdoor unit
Cause = Broken power transformer, Broken compressor wire, Compressor blockage
Conditions of flashing = When the input current of 1 A or less is detected for 30 continuous seconds or more. (Compressor stops.)

Indoor unit indicator
RUN lamp = Comes on
TIMER lamp = 2 time flash
Outdoor unit indicator (LED5) = On for 4 seconds and off for 4 seconds
Description of trouble = Discharge pipe thermistor error
Cause = Broken discharge pipe thermistor wire, Connector poor connection
Conditions of flashing = When the discharge pipe thermistor temperature measures an interrupted signal (less than 7 °C) of 10 seconds or more.

Indoor unit indicator
RUN lamp = Comes on
TIMER lamp = 3 time flash
Outdoor unit indicator (LED5) = 3 time flash
Description of trouble = Over current
Cause = Overload operation, Overcharge
Conditions of flashing = When the input current value exceeds the set value. (Compressor stops)

Indoor unit indicator
RUN lamp = Comes on
TIMER lamp = 4 time flash
Outdoor unit indicator (LED5) = 4 time flash
Description of trouble = Over heat of power transistor
Cause = Cooling problem
Conditions of flashing =When power transistor temperature exceeds setting value. (Compressor Stops.)

Indoor unit indicator
RUN lamp = Comes on
TIMER lamp = 5 time flash
Outdoor unit indicator (LED5) = 5 time flash
Description of trouble = Over heat of Compressor
Cause = Gas shortage , Defective discharge pipe thermistor
Conditions of flashing = When discharge pipe thermistor value exceeds setting value. (Compressor Stops.)

Indoor unit indicator
RUN lamp = Comes on
TIMER lamp = 6 time flash
Outdoor unit indicator (LED5) = 6 time flash (3)
Description of trouble = Error of signal transmission
Cause = Defective power supply , Broken signal wire, Defective indoor/outdoor unit circuit boads
Conditions of flashing = If serial signal cannot be sent or received for 1 minute and 55 seconds continuously.

Notes
(1) Ceiling recessed type only
(2) Wall mounted type only
(3) LED 5 will go out when even one unit is operating properly or there is an abnormality with the outdoor unit power supply. It will also go out during normal operation.
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SANYO SAP-KRV9AEH+SAP-CRV9AEH & SAP-KRV12AEH+SAP-CRV12AEH ERROR CODE

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Troubleshooting from Error Display
NOTE 4 minutes after protection stop of compressor, the malfunction is shown in error code.
In other situation, the malfunction will be displayed by press the light button for 6 times within 4 seconds.

Code = 1
Malfunction = Storage slug
Error Display
Dual 8 Display = EE
LED = Heating LED-pause 3 seconds and blink 15 times
Repair Method = Replace indoor main board.

Code = 2
Malfunction = Indoor PCB malfunction
Error Display
Dual 8 Display = EE
LED = Heating LED-pause 3 seconds and blink 15 times
Repair Method = Replace indoor main board.

Code = 3
Malfunction = Anti-freezing protection
Error Display
Dual 8 Display = E2
LED = Running LED-pause 3 seconds and blink 2 times
Repair Method = Outdoor ambient temperature is too low.

Code = 4
Malfunction = Overload of system
Error Display
Dual 8 Display = H4
LED = Heating LED-pause 3 seconds and blink 4 times
Repair Method = System is abnormal, check if the evaporator and condenser is dirty and blocked.

Code = 5
Malfunction = No motor of indoor unit feedback Indoor pipe
Error Display
Dual 8 Display = H6
LED = Running LED-pause 3 seconds and blink 11 times
Repair Method = Is electromotor mounted normally ?

Code = 6
Malfunction = temperature sensor malfunction Internal ambient
Error Display
Dual 8 Display = F2
LED = Cooling LED-pause 3 seconds and blink 2 times
Repair Method = Is it loose ? Measure the resistance value with universal meter

Code = 7
Malfunction = temperature sensor malfunction
Error Display
Dual 8 Display = F1
LED = Cooling LED-pause 3 seconds and blink 1 time
Repair Method = Is it loose ? Measure the resistance value with universal meter

Code = 8
Malfunction = Zero passage abnormal
Error Display
Dual 8 Display = UF
LED = Heating and cooling LED blink 7 times at the same time
Repair Method = Replace indoor main board.

Code = 9
Malfunction = Overload of compressor
Error Display
Dual 8 Display = H3
LED = Heating LED-pause 3 seconds and blink 3 times
Repair Method = Inspect connection state of the overload wire.

Code = 10
Malfunction = Startup failure
Error Display
Dual 8 Display = LC
LED = Heating LED-pause 3 seconds and blink 11 times
Repair Method = Check if the resistance of compressor and resistance to ground is normal.
If the compressor is normal, the outdoor main board may be wrong.

Code = 11
Malfunction = No motor of outdoor unit feedback
Error Display
Dual 8 Display = UH
LED = Heating and cooling LED blink 8 times at the same time
Repair Method = This malfunction may happen when outdoor DC electromotor is used.

Code = 12
Malfunction = Over current protection
Error Display
Dual 8 Display = E5
LED = Running LED-pause 3 seconds and blink 5 times
Repair Method = Is electric network variable ?

Code = 13
Malfunction = 4-way valve conversion abnormal
Error Display
Dual 8 Display = U7
LED = Cooling LED-pause 3 seconds and blink 20 times
Repair Method = Replace 4-way valve.

Code = 14
Malfunction = Phase current detection malfunction of compressor
Error Display
Dual 8 Display = U1
LED = Heating LED-pause 3 seconds and blink 13 times
Repair Method = Replace outdoor main board.

Code = 15
Malfunction = Sync failure
Error Display
Dual 8 Display = H7
LED = Heating LED-pause 3 seconds and blink 7 times
Repair Method = Check if the resistance of compressor and resistance to ground is normal.
If the compressor is normal, the outdoor main board may be wrong.

Code = 16
Malfunction = Current detection malfunction of complete unit Outdoor ambient
Error Display
Dual 8 Display = U5
LED = Cooling LED-pause 3 seconds and blink 13 times
Repair Method = Replace outdoor main board.

Code = 17
Malfunction = temperature sensor malfunction
Error Display
Dual 8 Display = F3
LED = Cooling LED-pause 3 seconds and blink 3 times
Repair Method = Is it loose ? Measure the resistance value with universal meter

Code = 18
Malfunction = Discharge protection of compressor
Error Display
Dual 8 Display = F4
LED = Running LED-pause 3 seconds and blink 4 times
Repair Method = Is it loose ? Measure the resistance value with universal meter

Code = 19
Malfunction = Break-circuit and short-circuit of outdoor discharge temperature sensor
Error Display
Dual 8 Display = F5
LED = Cooling LED-pause 3 seconds and blink 5 times
Repair Method = Is it loose ? Measure the resistance value with universal meter

Code = 20
Malfunction = short-circuit of outdoor condenser temperature sensor
Error Display
Dual 8 Display = F4
LED = Cooling LED-pause 3 seconds and blink 18 times
Repair Method = Is it loose ? Measure the resistance value with universal meter

Code = 21
Malfunction = Overheat of carbon fin
Error Display
Dual 8 Display = P8
LED = Heating LED-pause 3 seconds and blink 19 times
Repair Method = Is outdoor ambient temperature is too high ? Is radiator mounted correctly ?

Code = 22
Malfunction = DC over current
Error Display
Dual 8 Display = UU
LED = Heating and cooling LED blink 11 times at the same time
Repair Method =

Code = 23
Malfunction = Temperature sensor malfunction of carbon fin
Error Display
Dual 8 Display = P7
LED = Heating LED-pause 3 seconds and blink 18 times
Repair Method = Replace outdoor main board.

Code = 24
Malfunction = Lack of Freon or block protection
Error Display
Dual 8 Display = F0
LED = Cooling LED-pause 3 seconds and blink 10 times
Repair Method =

Code = 25
Malfunction = DC input voltage is too high
Error Display
Dual 8 Display = PH
LED = Cooling LED-pause 3 seconds and blink 11 times
Repair Method = Is voltage of AC power supply normal ?

Code = 26
Malfunction = DC input voltage is too low
Error Display
Dual 8 Display = PL
LED = Heating LED-pause 3 seconds and blink 21 times
Repair Method = Is voltage of AC power supply normal ?

Code = 27
Malfunction = Communication malfunction Setting error.
Error Display
Dual 8 Display = E6
LED = Running LED-pause 3 seconds and blink 6 times
Repair Method = Is Outdoor connecting wire reliably connected ?

Code = 28
Malfunction = Indoor and outdoor unit abnormal
Error Display
Dual 8 Display = UA
LED = Heating and cooling LED blink 12 times at the same time
Repair Method = Outdoor unit is not matched with indoor unit.
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SANYO KHS3082+CH3082 & KHS3682+CH3682 Error Code

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Since the indications cover various units, the corresponding parts listed below may not be present in some models.

Indication on Indoor unit
Alarm Code = F10
LED Clean (3) = OFF
Timer (2) = OFF
Operation (1) = Blinking
Error Code = S01
Diagnosis Contents = Room temperature sensor failure
Possible Malfunction = 1. Sensor open circuit or short circuit.
2. Contact failure at connector or open circuit at terminal crimping location (short-circuit detection only for the humidity sensor)
3. Indoor/outdoor PCboard failure.

Indication on Indoor unit
Alarm Code = F02
LED Clean (3) = OFF
Timer (2) = Blinking
Operation (1) = OFF
Error Code = S02
Diagnosis Contents = Indoor heat exchanger sensor failure
Possible Malfunction = 1. Sensor open circuit or short circuit.
2. Contact failure at connector or open circuit at terminal crimping location (short-circuit detection only for the humidity sensor)
3. Indoor/outdoor PCboard failure.

Indication on Indoor unit
Alarm Code = F13
LED Clean (3) = OFF
Timer (2) = Blinking
Operation (1) = Blinking
Error Code = S03
Diagnosis Contents = Humidity sensor failure
Possible Malfunction = 1. Sensor open circuit or short circuit.
2. Contact failure at connector or open circuit at terminal crimping location (short-circuit detection only for the humidity sensor)
3. Indoor/outdoor PCboard failure

Indication on Indoor unit
Alarm Code = F04/F12
LED Clean (3) = Blinking
Timer (2) = OFF
Operation (1) = OFF
Error Code = S04
Diagnosis Contents = Compressor temperature sensor failure
Possible Malfunction = 1. Sensor open circuit or short circuit.
2. Contact failure at connector or open circuit at terminal crimping location.
3. Outdoor PCboard failure.


Indication on Indoor unit
Alarm Code = F09/F15 to F18
LED Clean (3) = Blinking
Timer (2) = OFF
Operation (1) = Blinking
Error Code = S05
Diagnosis Contents = Outdoor heat exchanger sensor failure
Possible Malfunction = 1. Sensor open circuit or short circuit.
2. Contact failure at connector or open circuit at terminal crimping location.
3. Outdoor PCboard failure.

Indication on Indoor unit
Alarm Code = F08/F21 to F24
LED Clean (3) = Blinking
Timer (2) = Blinking
Operation (1) = OFF
Error Code = S06
Diagnosis Contents = Outdoor air temperature sensor failure
Possible Malfunction = 1. Sensor open circuit or short circuit.
2. Contact failure at connector or open circuit at terminal crimping location.
3. Outdoor PCboard failure.

Indication on Indoor unit
Alarm Code = F27
LED Clean (3) = Blinking
Timer (2) = Blinking
Operation (1) = Blinking
Error Code = S07
Diagnosis Contents = Outdoor electric current detection failure
Possible Malfunction = Outdoor PCboard failure

Indication on Indoor unit
Alarm Code = E05
LED Clean (3) = OFF
Timer (2) = OFF
Operation (1) = ON
Error Code = E01
Diagnosis Contents = Indoor/outdoor communications failure (serial communication)
Possible Malfunction = 1. Mis-wiring
2. AC power failure
3. Blown fuse
4. Power Relay failure
5. Indoor or outdoor PCboard failure
6. Outdoor Fan Motor failure
7. Reactor failure
8. High-pressure switch failure
9. Overload relay failure
10. Magnetic Coil failure

Indication on Indoor unit
Alarm Code = P26
LED Clean (3) = OFF
Timer (2) = ON
Operation (1) = OFF
Error Code = E02
Diagnosis Contents = HIC circuit failure or Power Tr (transistor) circuit failure
Possible Malfunction = 1. HIC or power Tr failure
2. Outdoor fan does not turn
3. Instantaneous power outage
4. Service valve not opened
5. Outdoor fan blocked
6. Continuous overload operation
7. Compressor failure
8. Outdoor PCboard failure

Indication on Indoor unit
Alarm Code = F31
LED Clean (3) = 0FF
Timer (2) = ON
Operation (1) = ON
Error Code = E03
Diagnosis Contents = Outdoor unit external ROM (OTP data) failure
Possible Malfunction = External Rom data failure or PCboard failure

Indication on Indoor unit
Alarm Code = P16
LED Clean (3) = ON
Timer (2) = OFF
Operation (1) = OFF
Error Code = E04
Diagnosis Contents = Peak current cut-off
Possible Malfunction = 1. Instantaneous power outage
2. HIC or power transistor failure
3. Outdoor PCboard failure


Indication on Indoor unit
Alarm Code = P07
LED Clean (3) = ON
Timer (2) = OFF
Operation (1) = ON
Error Code = E05
Diagnosis Contents = PAM circuit failure, Active circuit failure
Possible Malfunction = 1. Outdoor PCboard failure
2. Outdoor power supply voltage failure

Indication on Indoor unit
Alarm Code = P01
LED Clean (3) = ON
Timer (2) = ON
Operation (1) = ON
Error Code = E07
Diagnosis Contents = Indoor fan operating failure
Possible Malfunction = 1. Fan motor failure
2. Contact failure at connector
3. Indoor PCboard failure

Indication on Indoor unit
Alarm Code = P19
LED Clean (3) = Blinking
Timer (2) = Blinking
Operation (1) = ON
Error Code = E08
Diagnosis Contents = 4-way valve switching failure, Indoor zero-cross failure
Possible Malfunction = 1. 4-way valve failure (heat pump model only)
2. Outdoor PCboard failure

Indication on Indoor unit
Alarm Code = P15
LED Clean (3) = Blinking
Timer (2) = ON
Operation (1) = Blinking
Error Code = E09
Diagnosis Contents = No-refrigerant protection
Possible Malfunction = 1. Service valve not opened
2. Shortageof refrigerant

Indication on Indoor unit
Alarm Code = P29
LED Clean (3) = Blinking
Timer (2) = ON
Operation (1) = ON
Error Code = E10
Diagnosis Contents = DC compressor drive circuit failure
Possible Malfunction = 1. Open phase
2. Outdoor PCboard failure

Indication on Indoor unit
Alarm Code = P22
LED Clean (3) = ON
Timer (2) = Blinking
Operation (1) = Blinking
Error Code = E11
Diagnosis Contents = Outdoor fan operating failure
Possible Malfunction = 1. Fan motor failure
2. Contact failure at connector
3. Outdoor PCboard failure

Indication on Indoor unit
Alarm Code = E07/P04/P05/P20/P27
LED Clean (3) = ON
Timer (2) = Blinking
Operation (1) = ON
Error Code = E12
Diagnosis Contents = Outdoor system communications failure, OLR operation, Outdoor power supply open phase and Outdoor coil freezing
Possible Malfunction = 1. Mis-wiring
2. Blown fuse
3. Powe Relay failure
4. Outdoor PCboard failure
5. Compressor failure

Indication on Indoor unit
Alarm Code = P11
LED Clean (3) = ON
Timer (2) = ON
Operation (1) = Blinking
Error Code = E13
Diagnosis Contents = Freeze-prevention activated
Possible Malfunction = 1. Indoor fan system failure
2. Shortage of refrigerant
3. Low temperature operation

Technical and Service manual please download here
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