6-7 AIR CONDITIONER OPERATES, BUT ABNORMALITIES ARE OBSERVED.
1-POOR COOLING OR HEATING
Does the indoor unit
receive the signal?
Check the remote
controller settings.
See maintenance
5-21
NO
Receiver
assy may be
defective
PCB assy
may be
defective
YES
Clean the air filters
Check the air filters.
Are they clogged?
YES
NO
Check the expansion
valve coil. Is it rightly
connected and the
resistance value correct?
Replace the
expansion
valve coil
NO
There is the
possibilty of gas
shortage
YES
Is the remote controller
directly under the airflow
of the unit?
NO
Change the
position of the
remote controller
YES
Is the fan motor set in
low speed?
Set fan speed in
medium or high
speed
YES
NO
Try with
another
remote
controller
31
Summary of Contents for 38.7104.050
Page 9: ...2 DIMENSIONAL DATA MRAF98R5IAA MRAF128R5IAA 9...
Page 12: ...4 ELECTRICAL DATA 4 1 Electric Wiring Diagrams MRAF98R5IAA MRAF128R5IAA 12...
Page 27: ...6 3 SYSTEM DOES NOT RUN 27...
Page 29: ...6 4 OUTDOOR UNIT DOES NOT RUN AND NO FAULT IS DISPLAIED 6 5 ONLY OUTDOOR UNIT IS OFF 29...
Page 30: ...6 6 OUTDOOR UNIT FAULT SIGNALING 30...
Page 32: ...32...
Page 33: ...6 8 NOISY PROBLEM 33...
Page 34: ...7 CHECKING ELETRICAL COMPONENTS 7 1 34...
Page 35: ...7 2 35...
