Sharp 2020215A0343 Service Manual

Section
3
Troubleshooting and Testing
3
-4
Symptom
Air conditioner cooling, but
room is too warm - ice forming
on cooling coil behind
decorative front.
Air conditioner cooling, but
room is too warm - NO ice
forming on cooling coil
behind decorative front.
Air conditioner turns on and
off rapidly.
Noise when unit is cooling.
Water dripping INSIDE when
unit is cooling.
Water dripping OUTSIDE when
unit is cooling.
Room too cold.
Remote sensing deactivating
Prematurely (some models).
Possible Cause
1. Outdoor temperature below 60°F (16°C). To defrost the coil, set selector to
FAN ONLY Mode.
2. Air filter may be dirty. Clean filter. Refer to Care and Cleaning section. To
defrost, set selector to FAN ONLY Mode.
3. Temperature is set too Low for night-time cooling. To defrost the coil, set to
FAN ONLY Mode. Then, set Temperature to a Higher number.
1. Dirty air filter - air restricted. Clean air filter.
2. Temperature is set too High. Set temperature to a Lower number.
3. Air directional louvers positioned improperly. Position louvers for better air
distribution.
4. Front of unit is blocked by drapes, blinds, furniture, etc. - restricts air
distribution. Clear blockage in front of unit.
5. Doors, windows, registers, etc. open - cold air escapes. Close doors,
windows, registers, etc.
1. Dirty air filter - air restricted. Clean air filter.
2. Outside temperature extremely hot. Set FAN speed to a faster setting to
bring air past cooling coils more frequently.
1. Air movement sound. This is normal. If too loud, set to a slower FAN setting.
2. Sound of fan hitting water-moisture removal system. This is normal when
humidity is high. Close doors, windows and registers.
3. Window vibration - poor installation. Refer to installation instructions or check
with installer.
1. Improper installation. Tilt air conditioner slightly to the outside to allow water
drainage. Refer to installation instructions - check with installer.
1. Unit removing large quantity of moisture from humid room. This is normal
during excessively humid days.
1. Setting too low. Increase temperature setting.
2. Remote sensing activated (on some models) and remote control located in
Hot Spot-Relocate remote control or deactivate remote sensing.
1. Remote control not located within range. Place remote control within 20 feet
& 140º Radius of the front of the unit. Remote control obstructed. Remove
obstruction.

Sharp 2020215A0343 Specifications

General

Brand	Sharp
Model	2020215A0343
Category	Air Conditioner
Language	English