A.O. Smith ADMR-115, Installation, User And Service Manual

Page: 81 / 98

Instruction manual ADMR 81
s
15 Performing
maintenance
15.1 Introduction Caution
Maintenance may only be performed by a qualified service and
maintenance engineer.
At each service, the appliance undergoes maintenance on both the water side
and the gas side. The maintenance must be carried out in the following order.
1.
Preparation for maintenance
2. Water-side maintenance
3. Gas-side maintenance
4. Finalizing maintenance
Note
To order spare parts, it is important to write down the appliance type and
model, and the full serial number of the appliance. These details can be found
on the rating plate. Only by ordering with this information can you be sure to
receive the correct spare parts.
15.2 Preparation for
maintenance
To test whether all components are still working properly, complete the following
steps:
1. Activate the
MENU
with .
2. Use: and to place the cursor beside
OFF
.
3. Confirm
OFF
with .
4. Switch the appliance OFF (position 0) using the ON/OFF switch on the
control panel.
5. Switch the electronic controller ON by setting the ON/OFF switch to
position I .
The display will now show
INTERNAL CHECK
for about 10 seconds, and
will then go to the main menu.
MENU
»OFF
^ ON
È WEEK PROGRAM
INTERNAL CHECK