Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Set Multimeter to DC Volts 
Disconnect LV2 from the PCB and make safe
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Measure the voltage between pins 14 and 15 at LV2 on the PCB during the appliances 15 second self-check period.
The voltage should be seen to fluctuate from 0 - 24 VDC
(some multimeters may show 0 - O.L or a negative voltage due to their response time - this is acceptable as are any voltage fluctuations on the multimeter display)
Does the voltage behave as expected?
Notes:
1. Turn off/on as necessary until test complete.
2. If you are unable to test with in the 15 second self-check period then then click here for an alternative test.
The voltage should be seen to fluctuate from 0 - 24 VDC
(some multimeters may show 0 - O.L or a negative voltage due to their response time - this is acceptable as are any voltage fluctuations on the multimeter display)
Does the voltage behave as expected?
Notes:
1. Turn off/on as necessary until test complete.
2. If you are unable to test with in the 15 second self-check period then then click here for an alternative test.
Isolate as per TOPs P4
and refit as necessary