Troubleshooting; Operating Range - Sanyo CH0951 Technical & Service Manual

If your air conditioner does not work properly, first check the following points before requesting service. If it
still does not work properly, contact your dealer or service center.
Trouble
Air conditioner does not run
at all.
OPERATION lamp flashes
and air conditioner does not
operate.
Compressor runs but soon
stops.
Poor cooling (or heating)
performance.
Clicking sound is heard from
the air conditioner.
OPERATION lamp lights but
outdoor unit will not run.
The air conditioner is operable within the temperature ranges as listed below:
Temperature
Maximum
COOLING
Minimum
Maximum
HEATING
Minimum
26

Troubleshooting

Possible Cause
1. Power failure.
2. Leakage circuit breaker tripped.
3. Line voltage is too low.
4. Operation button is OFF.
5. Batteries in remote control unit have run
down.
Trouble in wiring system.
Obstruction in front of condenser coil.
1. Dirty or clogged air filter.
2. Heat source or many people in room.
3. Doors and/or windows are open.
4. Obstacle near air intake or air discharge
port.
5. Thermostat is set too high for cooling (or
too low for heating).
6. (Outdoor temperature is too low.)
In heating or cooling operation, any plastic
parts may expand or shrink due to a
sudden temperature change. In this event,
a clicking sound may occur.
1. The use of portable telephones near the
air conditioner may cause disturbance to
its normal operation.

Operating Range

Indoor Air Intake Temp.
95 F DB/71 F WB
67 F DB/57 F WB
80 F DB/67 F WB
– DB/– WB
Remedy
1. Restore power.
2. Contact service center.
3. Consult your electrician or dealer.
4. Press the button again.
5. Replace batteries.
Contact service center.
Remove obstruction.
1. Clean air filter to improve airflow.
2. Eliminate heat source if possible.
3. Shut them to keep the heat (or cold) out.
4. Remove it to ensure good airflow.
5. Set the temperature lower (or higher).
6. (Consult your dealer or try to use a
back-up heater.)
This is normal, and the sound will soon
disappear.
1. Turn off the power then restart the air
conditioner after 1 minute.
2. Consult your dealer.
Outdoor Air Intake Temp.
115 F DB
67 F DB
75 F DB/65 F WB
17 F DB/15 F WB
OI-202-22EG