Sharp AF-05CML

15
AF-05CML
Symptom Check Defect Remedy
Fan motor operates but
supplies no air when
"Selector switch" set at
"Fan"
1)
Check motor rotating direction
2) Check if air is delivered
Motor rotating wrong
Change motor
1) Dirty air filter
2) Fan screw or nut loose and
only motor rotating
1) Clean
2) Tighten up
Compressor starts
but stops soon
1) Check air filter and fan
elements
4) Rated current is normal but
overload relay or internal
thermostat cuts out
1) Voltage is low and over-
current runs, overload relay or
internal thermostat operates
2) Wiring for power supply
equipment too small
1) Overload relay operates as
fan is not rotating
2) Overload relay operates as
fan nut is loose
1) Overload relay operates as
outdoor air temp. is too high
Overload relay defective
1) Improve the power supply
equipment
2) Improve the power supply
equipment
1) Change switch
Check electric circuit (fan)
2) Tighten up
1) Ventilate well for outdoor
exchanger, avoid sun light,
remove heat source from
around outdoor unit
Change overload relay
3) Check the temp. of air at
condensor
2) Improper ventilation for
outdoor heat exchanger.
Overload relay operates as
the temp. of outdoor unit is
too high
2) Clean the outdoor unit
Improve ventilation for outlet
port of outdoor exchanger
1) Measure power supply
voltage
Compressor operates
in cooling but fan doesn't
rotate
2) Check fan capacitor
Switch defective
Change switch
Noise
Excessive vibration
and noise
Capacitor defective
1) Insulation unstable
Piping touches cabinet or other
parts
2) Screw or nut loose causing
vibrating noise
2) Electric parts
4) Cabinet or parts set-screws
loosened
5) Fan touching
Change capacitor
Change motor
1) Secure
2) Secure
Replace
2) Repair or change
4) Tighten up
6) Secure
2) Cabinet screw loose
2) Tighten up
2) Metallic sound
1) Compressor
3) Piping touched
6) Insulation unstable
3) Repair
1) Change compressor
1) Fan cracked or deformed
Repair
1) Change fan
1) Check switch mechanism
1) Vibrating noise
3) Noise created by fan
Compressor mounts defective
Check noise source
3) Check fan motor
5) Adjust
Fan motor defective
4) Check mounting of
compressor