Sanyo DHX3652, UHX2452, UHX0752, UHX1252, UHX3652 Troubleshooting, Trouble Possible Cause Remedy

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Remote Control Functions

2. Wireless Remote Controller

7. Troubleshooting

Check out the following points before requesting service.

	Trouble				Possible Cause			Remedy
	The air conditioner		Is the air conditioner in the shutdown mode or					Press the wireless remote control unit's
	does not run even		was the switch operated after a power failure?					ON/OFF operation button again.
	when the ON/OFF
			How about the local power switch?					If it was off, set it now to on.
	operation switch has
	been set to ON.
			Have any of the fuses blown?					If a fuse has blown, contact your dealer.
again.
			Is the ON timer operation mode established?					Clear the timer operation.
Check			If the signal receiver's NORMAL/ALL OFF					If it is, set it to the “NORMAL” position and
			switch set to	“ALL OFF”?				cancel the operation.
			Have the wireless remote control unit's					If they have, replace them with new ones.
			batteries run down?
			Do the indication lamps show a cooling/heating					Change the operation mode.
			mismatch or is the auto cooling/heating
			function not available?
Auto cooling/heating or heating appears on the display even though the air								Change the setting of the wireless remote
conditioner is a cooling-only model.								control unit's slide switch. (See page 2-9)
	Trouble						Possible Cause
	(An indicator lamp is blinking.)				•	Some kind of trouble has occurred in communication between the signal
	Operation	Timer	Preparing for
			operation			receiver and indoor unit. Alternatively, the wrong address has been set
						when a wired remote control unit is used.
	Operation	Timer	Preparing for		•	Some kind of trouble has occurred in communication between the indoor
			operation			unit and outdoor unit.
	Operation	Timer	Preparing for		•	The indoor unit's protection device has been activated. Alternatively, the
			operation			auto flap connector of the ceiling panel has been disconnected.
dealer.	Operation	Timer	Preparing for		• The outdoor unit's protection device has been activated.
Contact your
			operation
	Operation	Timer	Preparing for		•	Something is wrong with the temperature sensor.
			operation
	Operation	Timer	Preparing for		• The outdoor unit's compressor has been protected.
			operation
	Operation	Timer	Preparing for		•	A trial run mode is underway. Set the trial run mode to Off.
			operation

If the trouble persists even after performing the checks recommended above, shut down the air conditioner's operation, set the local power switch to OFF, and contact your dealer with the model number and trouble symptoms. You must NOT attempt to make repairs yourself due to the dangers involved. If one or more of the indication lamps is blinking, give this information to the dealer as well.

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