Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Remove connector from return thermistor and make safe
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Enter the diagnostic codes menu for the appliance DSN, this is diagnostic code "d.93".
Make a note of the current DSN for the appliance displayed.
Change the DSN to a different number and allow the appliance to re load / reset.
Access the DSN diagnostic code again and change it back to its original setting and allow the appliance to re load / reset.
Refit the return thermistor connector.
Turn the mains power on and observe the display.
Does it now illuminate and remain on?
Make a note of the current DSN for the appliance displayed.
Change the DSN to a different number and allow the appliance to re load / reset.
Access the DSN diagnostic code again and change it back to its original setting and allow the appliance to re load / reset.
| Isolate Mains Power to appliance as per TOPs P4 |
Refit the return thermistor connector.
Turn the mains power on and observe the display.
Does it now illuminate and remain on?
Isolate as per TOPs P4
and refit as necessary