Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
Gain access to PCB (use Insulation Mat as required)
Measurement:
Test 1:
Measure between the connections marked Lp and Np on ST2 at the PCB.
Expect a resistance of approximately 180 - 250 ohms
on conventional pumps, high efficiency pumps
will be much higher (1Mohm or greater).
Test 2:
Measure between the connection marked
Lp on ST2 and a suitable earth point.
Resistance should be above greater than 1 Mohm.
Measure between the connections marked Lp and Np on ST2 at the PCB.
Expect a resistance of approximately 180 - 250 ohms
on conventional pumps, high efficiency pumps
will be much higher (1Mohm or greater).
Test 2:
Measure between the connection marked
Lp on ST2 and a suitable earth point.
Resistance should be above greater than 1 Mohm.
