Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to DC Volts 
Turn Hot Water Tap On
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Reset the appliance if required.
(Press reset button once then release)
After approximately 15 seconds measure for DC voltage between
pin 9 (pink) and pin 13 (blue) on connector CN23.
Expected voltage approximately 20 Vdc.
Note.
Voltage will not be present if lockout occurs,
reset as required until test is complete.
(Press reset button once then release)
After approximately 15 seconds measure for DC voltage between
pin 9 (pink) and pin 13 (blue) on connector CN23.
Expected voltage approximately 20 Vdc.
Note.
Voltage will not be present if lockout occurs,
reset as required until test is complete.
Isolate as per TOPs P4
and refit as necessary