0020313973_01 Compact Installation and maintenance instructions 27
8 Operation
8.1 Calling up the installer level
1. Press repeatedly until the symbol flashes.
2. Use or to set the competent person access
code and confirm by pressing .
– Competent person access code: 35
◁ The d. diagnostics codes menu is displayed.
8.2 Using diagnostics codes
1. Call up the installer level. (→ Page 27)
2. Use or to select the diagnostics codes d.
menu.
3. Confirm by pressing
.
◁ 00 is displayed.
4. Use or to select the diagnostics code whose
value you want to change.
Diagnostics codes (→ Page 43)
5. Confirm by pressing .
6. Use or to select the required value for the dia-
gnostics code.
7. Press to confirm this setting.
8. Press to exit the diagnostics codes.
8.3 Running check programmes
1. Call up the installer level. (→ Page 27)
2. Use or to select the check programmes P.
menu.
3. Confirm by pressing .
4. Use or to select the required check
programme.
Check programmes (→ Page 51)
5. Press to confirm.
◁ The check programme starts, is executed and
stops after the intended time has elapsed.
◁ The P. check programmes menu is shown.
6. If you want to cancel the check programme before the
intended time has elapsed, press .
◁ oF is displayed for 10 seconds.
◁ The P. check programmes menu is shown.
7. Press to exit the check programmes.
8.4 Calling up status codes
1. Call up the installer level. (→ Page 27)
2. Use or to select the status codes S. menu.
3. Confirm by pressing .
◁ The display alternates between the current status
code, the current heating flow temperature and the
current water pressure.
– S. → XX → XX °C → X,X bar
4. Press to exit the status codes.
8.5 Exiting the installer level
▶ Press the button as often as necessary in order to
return to the basic display.
◁ The basic display is shown.
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