Sanyo air conditioner troubleshooting

Sanyo AHX0752 air conditioner troubleshooting

TroubleCause and correction
The power LED (D53) on the outdoor unit control PCB does not turn ON.Check for any errors in the power wiring to the outdoor unit, and check for a missing phase.
LED 1 and 2 on the outdoor unit control PCB do not turn OFF when the outdoor unit power is turned ON, and automatic address setting cannot be started.Check the “Alarm Display” table and correct the problem.
An alarm appears immediately when automatic address setting is started from the wired remote controller.
Nothing happens when the operator attempts to start automatic address setting from the wired remote controller.Check that the wired remote controller wiring and the inter-unit control wiring are connected correctly.
Check that the indoor unit power is ON.
An alarm appears on the wired remote controller sometime from several seconds to several minutes after automatic address setting is started.Check the “Alarm Display” table and correct the problem.
LED 1 and 2 on the outdoor unit control PCB indicate that automatic address setting is in progress (the LEDs blink alternately) for several minutes after automatic address setting is started (the compressors may also start and stop several times), however LED 1 and 2 never indicate that automatic address setting is completed (turn OFF).

Sanyo RCS-BH80UA.WL air conditioner troubleshooting

TroublePossible CauseRemedy
Air conditioner does not run at all.1. Power failure1. Restore power.
2. Leakage circuit breaker has tripped.2. Contact service center.
3. Line voltage is too low.3. Consult your electrician or dealer.
4. Operation button is turned off.4. Press the button again.
5. The remote control unit or heat pump is malfunctioning.(ERROR and characters such as E, F, H, L, P, etc., appear on the display.)5. Consult your dealer.
Compressor runs but soon stops.1. Obstruction in front of condenser coil1. Remove obstruction.
Poor cooling (or heating) performance1. Dirty or clogged air filter1. Clean the air filter to improve the airflow.
2. Heat source or many people in room2. Eliminate heat source if possible.
3. Doors and/or windows are open.3. Shut them to keep the heat (or cold) out.
4. Obstacle near air intake or air discharge port4. Remove it to ensure good airflow.
5. Thermostat is set too high for cooling (or too low for heating).5. Set the temperature lower (or higher).
6. (Outdoor temperature is too low).6. (Try to use a back-up heater.)
7. (Defrosting system does not work.)7. (Consult your dealer.)
“CHECK" is displayed.1. Trouble in the system1. Contact service center.