Compatability of Underfloor Electric Mat Controllers

[Mel_P]

Well I tried it on another circuit. One with a 13A "non-ring" socket on on a 16A MCB with an overall RCD on the consumer unit. the MCB did not trip but the 30ma RCD did. Suggests it the earth leakage causing the problem?

 

[Octopus]

tried what on another circuit?

 

[Mel_P]

The whole thing - disconnected mains input to wall thermostat and connected 240v via fused 13A plug / flying lead to thermostat / heating pad. Capped of 240 leads from 6A RCBO during test.

 

[Octopus]

The whole thing - disconnected mains input to wall thermostat and connected 240v via fused 13A plug / flying lead to thermostat / heating pad. Capped of 240 leads from 6A RCBO during test.

That's not the ideal way of safely going about fault finding..