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V

Vitesse

Went to look at a job today for a customer whose electric underfloor heating has stopped working. It had the contractor mentioned in the thread title installed. It appears from the brief look that I had this evening to be four pole with the output voltage for the heating elements being fed from the lower four terminal (two zones) and the input supply for the zones to the four upper terminals. You can manually push the contacts in with a screwdriver and the FCU neon downstairs in the room with the underfloor heating comes on. There are two separate terminals above that appear to be the input voltage that energise the coil contacts to close. The only documentation I can find says that these are the "connect coil supply".

Anyone familiar with this contractor? Am I right in my assumption that the "connector coil supply" terminals are coming from the thermostat downstairs?

As I said I was literally in the house for about 10mins so didn't get any chance to check any further.
 
You need to check the control circuit (stat/timer) to see if voltage is appearing at the coil terminals.
 
There was nowt on the coil terminal, so I suspect the stat has died. I didn't get there until gone 5 this evening, so it was a ---- up to carry on fault finding or cold beer and beer won!
 

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