Hi there
Got a problem with my electric underfloor heating that my builder installed in 2013
It's a Heat Mat installation below tiles, controlled via a KNX switch that turns it on for a set amount of time (via a KNX actuator). It's in the bathroom but there doesn't seem to be any cracks in the grouting etc where water could have got through.
So when I turn on this specific EUFH circuit it now it trips the RCD. All the other EUFH circuits on the same KNX actuator work fine.
I did have the EUFH in another room fail about two years ago, but in that case the floor didn't heat up, and it didn't trigger the RCD (the engineer found a break in the mat heating wire and repaired it).
Does this issue sound like it's a faulty mat again or is there something else that I should double check before calling Heat Mat and digging up tiles? Fuse spur fuse is fine. Thanks
Got a problem with my electric underfloor heating that my builder installed in 2013
It's a Heat Mat installation below tiles, controlled via a KNX switch that turns it on for a set amount of time (via a KNX actuator). It's in the bathroom but there doesn't seem to be any cracks in the grouting etc where water could have got through.
So when I turn on this specific EUFH circuit it now it trips the RCD. All the other EUFH circuits on the same KNX actuator work fine.
I did have the EUFH in another room fail about two years ago, but in that case the floor didn't heat up, and it didn't trigger the RCD (the engineer found a break in the mat heating wire and repaired it).
Does this issue sound like it's a faulty mat again or is there something else that I should double check before calling Heat Mat and digging up tiles? Fuse spur fuse is fine. Thanks