Hello,
We have a large kitchen with EUFH which used to work but not now.
It is confugured in two zones each with two mat sets in parallell and each zone is controlled with an aube TH132-F themostat on a PB130-230 base.
Both zones are not heating, each thermostat is showing the UF temperature ok.
When power is applied to the thermostats I can hear the internal relays activate and see a full bargraph (81 to 100%) on their lcds.
I have measured each of the four mats at approx 88 ohms with no resistance to their earths.
There is 240V across the mats and the current to each pair is approx 5.9A. this equates to approx 1.4kW being drawn by each pair.
As I do not know how the heating wire / element works I'm flumoxed as to why both zones are not heating, so I'm hoping someone here can suppy an answer
I'm sort of resigned to the fact that I can say goodbye to the UFH as there is no way we're going to destroy the floor to replace the mats but I'd love to know why there is no heating
considering the anount of power being drawn.
Many thanks for your time,
Nightlight.