Trouble shooting 24
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause:
OK
Indicate or Display:
Indicate or Display:
Outdoor Unit : No indication
ERROR CODE : E : 26
YES
YES
NO
Communication Error
(Main PCB ---> Display PCB)
Indoor Unit Main PCB Circuit
Display PCB
1. Connection failure 2. External cause 3. Display PCB failure 4. Main PCB failure
Check Point 1-1 : Reset the power and operate
Does Error indication show again?
Check Point 1-2:
Check external cause such as noise
Check the complete insulation of the grounding.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).
Check Point 2 : Check Connection
Check connection between Main PCB and
Display PCB.
(If there is loose connector or open cable)
Check Point 3 : Replace Display PCB
>> If Check Point 1, 2 do not improve the symptom, change Display PCB.
(If the symptom does not change, replace Main PCB.)
When the Display PCB cannot receive the signal from the Main PCB.
07-25
Summary of Contents for AB Series A18LATN
Page 2: ...1 SPECIFICATIONS R410A INVERTER Large Ceiling type ...
Page 11: ...2 DIMENSIONS R410A INVERTER Large Ceiling type ...
Page 20: ...3 REFRIGERANT SYSTEM DIAGRAM R410A INVERTER Large Ceiling type ...
Page 21: ...03 01 MODEL AB A18 24LATN AO A18 24LACL 3 REFRIGERANT CIRCUIT ...
Page 22: ...03 02 MODEL AB A36 45LATN AO A36 45LATL ...
Page 23: ...03 03 MODEL ABTA18 24LATN AOTA18 24LACL ...
Page 24: ...03 04 MODEL ABTA36 45LATN AOTA36 45LATL ...
Page 25: ...4 CIRCUIT DIAGRAM R410A INVERTER Large Ceiling type ...
Page 26: ...04 01 MODEL AB A18 24LATN 4 CIRCUIT DIAGRAM ...
Page 27: ...04 02 MODEL AB A36 45LATN ...
Page 28: ...04 03 MODEL ABTA18 24LATN ...
Page 29: ...04 04 MODEL ABTA36 45LATN ...
Page 30: ...04 05 MODEL AO A18 24LACL ...
Page 31: ...04 06 MODEL AO A36 45LATL ...
Page 32: ...04 07 MODEL AOTA18 24LACL ...
Page 33: ...04 08 MODEL AOTA36 45LATL ...
Page 34: ...5 DESCRIPTION OF EACH CONTROL OPERATION R410A Large Ceiling type INVERTER ...
Page 59: ...6 REFRIGERANT CAUTION R410A R410A CASSETTE type INVERTER ...
Page 68: ...7 TROUBLE SHOOTING R410A Large Ceiling type INVERTER ...
Page 109: ...8 APPENDING DATA R410A INVERTER Large Ceiling type ...
Page 126: ...9 INSTALLATION MANUAL R410A INVERTER Large Ceiling type ...
Page 131: ...1116 Suenaga Takatsu ku Kawasaki 213 8502 Japan June 2007 Printed in Japan ...