A.O. Smith 28 30 50 60 service manual Maintenance, Remark Preparation for maintenance

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Introduction

12Maintenance

12.1Introduction

cNote

Maintenance may only by carried out by an approved service and maintenance engineer.

At each service, the appliance undergoes maintenance both on the water side and on the gas side. The maintenance should be carried out in the following order.

1.Preparation for maintenance;

2.Water-side maintenance;

3.Gas-side maintenance;

4.Finalising maintenance.

nRemark

12.2Preparation for maintenance

MENU »OFF ^ ON

È WEEK PROGRAM

Figure 12.1 Main menu

Before ordering spare parts, take a moment to write down the appliance type and model, and the full serial number of the appliance. Only by ordering with this information can you be sure to receive the correct spare parts. These details can be found on the rating plate.

To test whether all components are still working properly, you should complete the following steps:

1.Activate the MENU with B.

2.Use Hand Lto position the cursor beside OFF. See Figure 12.1.

3.Confirm OFF with E.

4.Wait until the fan has stopped. The S icon is then dimmed.

cNote

Failure to wait until the fan stops can cause damage to the appliance.

5.Turn the appliance OFF (position 0) using the ON/OFF switch on the control panel. See Figure 12.2.

6.Turn the ThermoControl ON by putting the ON/OFF switch to position I.

0 I

Figure 12.2 ThermoControl

Release R.1.3 UK 85