Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to Resistance 
CH Demand
Remove wires from diverter microswitches and make safe
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow pump to run and diverter valve to move to the left and depress microswitches.
Test 1:
Measure the resistance across the top microswitch.
Expect continuity / zero resistance.
Test 2:
Measure the resistance across the bottom microswitch.
Expect continuity / zero resistance.
Are the resistances measured as expected?
Test 1:
Measure the resistance across the top microswitch.
Expect continuity / zero resistance.
Test 2:
Measure the resistance across the bottom microswitch.
Expect continuity / zero resistance.
Are the resistances measured as expected?
.gif)
Isolate as per TOPs P4
and refit as necessary