Toshiba RAV-SM1403AT-E1 service manual Maintenance/Check list

2.To know the position of indoor unit body by address

•To confirm the unit No. in the group control

(Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.)

<Procedure>

The indoor unit numbers in the group control are successively displayed, and fan, louver, and drain pump of the corresponding indoor unit are turned on.

(Follow to the procedure during operation)

1 Push VENT and TEST buttons simultaneously for

4 seconds or more.

2

3

•Unit No. is displayed.

•Fans and louvers of all the indoor units in the group control operate.

Every pushing UNIT LOUVER button, the unit numbers in the group control are successively displayed.

•The unit No. displayed at the first time indicates the master unit address.

•Fan and louver of the selected indoor unit only operate.

Push TEST button to finish the procedure.

All the indoor units in the group control stop.

<Maintenance/Check list>

Aiming in environmental preservation, it is strictly recommended to clean and maintain the indoor/outdoor units of the operating air conditioning system regularly to secure effective operation of the air conditioner.

It is also recommended to maintain the units once a year regularly when operating the air conditioner for a long time.

Check periodically signs of rust or scratches, etc. on coating of the outdoor units. Repair the defective position or apply the rust resisting paint if necessary.

If an indoor unit operates for approx. 8 hours or more per day, usually it is necessary to clean the indoor/ outdoor units once three months at least.

These cleaning and maintenance should be carried out by a qualified dealer.

Although the customer has to pay the charge for the maintenance, the life of the unit can be prolonged.

Failure to clean the indoor/outdoor units regularly will cause shortage of capacity, freezing, water leakage or trouble on the compressor.

Part name	Object			Contents of check		Contents of maintenance
	Indoor	Outdoor
Heat exchanger	{	{	• Blocking with dust, damage check		• Clean it when blocking is found.
Fan motor	{	{	• Audibility for sound		• When abnormal sound is heard
Filter	{	—	•	Visual check for dirt and breakage	•	Clean with water if dirty
					• Replace if any breakage
			• Visual check for swing and balance		• Replace fan when swinging or
Fan	{	{	• Check adhesion of dust and external			balance is remarkably poor.
				appearance.	•	If a large dust adheres, clean it with
						brush or water.
Suction/	{	—	• Visual check for dirt and scratch		•	Repair or replace it if deformation or
Discharge grille						damage is found.
Drain pan	{	—	•	Check blocking by dust and dirt of drain	• Clean drain pan, Inclination check
				water.
Face panel, Louver	{	—	• Check dirt and scratch.		• Cleaning/Coating with repair painting
External appearance	—	{	•	Check rust and pealing of insulator	• Coating with repair painting
			•	Check pealing and floating of coating film

– 79 –