Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to DC Volts 
Preheat OFF
Ensure the Pressure gauge is showing at least 1 bar
Gain access to PCB (use insulation mat as required)
Ensure the Pressure gauge is showing at least 1 bar
Gain access to PCB (use insulation mat as required)
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Measure the DC voltage between pin 11 (orange) on X8 and a suitable earth.
The voltage measured should be a stable reading and will depend on water pressure and should conform approximately to the table below:
The voltage measured should be a stable reading and will depend on water pressure and should conform approximately to the table below:
| Pressure Gauge Reading (Bar) | DC Voltage | 0.0 | 0.4 |
| 0.5 | 0.8 |
| 1.0 | 1.0 |
| 1.5 | 1.2 |
| 2.0 | 1.5 |
Isolate as per TOPs P4
and refit as necessary