A.O. Smith TWI 35-200, Installation, User And Service Manual

Page: 64 / 92

Use the "invisible" button on the home screen. Press this button for 10 seconds and the
service menu will be visible.
Fig. Location invisible service menu button
MENU
Tank Temperature
Operating Setpoint
Status: Water Heating Disabled
35°C
60°C
Fig. Service menu screen
MAX >
Service Mode
Blower RPM
No >
Service Menu
BACK
The service menu consists of two submenus. Use the scroll bar on the right side to scroll
through the menu. Press on a line with a [>] to open the specific submenu. Press [BACK]
to return to the previous screen.
In order to stop the Service Mode, the setting of the Service Mode, must be set to No.
10.9.1 Set the service mode
To change the service mode:
1.
From the Service Menu submenu open the Service Mode control screen.
Fig. Service mode control screen
No
MIN
No
MAX
Yes
Service Mode
BACK ACCEPT
2. Use [+] and [-] to change the service mode setting.
3. Press [ACCEPT] to confirm the value or press [BACK] to return to the previous
screen.
The fan will be activated and starts according to the setting of the blower RPM (full load
when MAX and Partial Load when MIN)
64 Installation, Maintenance and Service part