UFH brain teaser. think i know but......

[telectrix]

15.65A so its right on the limit they usually say 16A max...

But just read op again and its on a 13A fcu?? This needs more than a quick fix tel...

nowt i can do about that. all tiled in and no way of separating the circuits. however, it's never blown the 13A fuse in the FCU.

 

[telectrix]

i'll try dissing 1 underfloor sensor and see how it goes. these sensors are not a straightforward open/closed. so davesparks post has made me think.

 

[suffolkspark]

Correct.... If you check them on ohms youll see....

Theres a setting on the screen somewhere where you can select air temp youll want it on that anyway

 

[telectrix]

if i can, i'll select air temp.customer is loaded so sod the leccy bill. it's a warmup tempo stat.

 

[Pauls0212]

I went to one a while ago and the 13a fcu was pulling 20a, i was called out because it was getting warm and discoloured. why do people not think about things before they install. But back to the problem ... if the stat accepts temp as well as probe , use 1 sensor and air temp.