Towerstat RF LED help

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• 5 Jan 2008

• #1

Hi,
I've just fitted a Towerstat RF to replace my Towerstat RSP. I've got a no volt set up and just connected the 2 wires as they were on the old stat.

The heating hasn't turned on as expected - should either of the LED lights on the receiver light up when its in the no volt set up?

Regards
Dean

 

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• 5 Jan 2008

• #2

The red should be on all the time, the green when there is a demand for heat.

 

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• #3

Thanks for the quick reply.

Whats the best way to check whats not working - what powers the LED? should I get a low voltage across the 2 wires?

Cheers
Dean

 

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• #4

The receiver unit is powered by the permanent live and neutral, which hopefully you will have sourced from the boiler.

In its no-voltage mode it is simply a relay, so you will get continuity across the COM and NO terminals when there is a demand for heat.

 

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• #5

I've only got 2 wires, the com and NO (which is what I had for the Towerstat RSP before but that was battery powered) - I dont have any other wires from the boiler.

Have I made a mistake? I hoped it would work with just the 2 wires.

Cheers
Dean

 

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• 5 Jan 2008

• #6

hitched said:

I've only got 2 wires, the com and NO (which is what I had for the Towerstat RSP before but that was battery powered) - I dont have any other wires from the boiler.

Have I made a mistake? I hoped it would work with just the 2 wires.

Cheers
Dean

Click to expand...

If you have the RF Towerstat then it needs a mains voltage to the receiver.

The missing 230V may explain (a) the non-existent LEDs and (b) why your heating doesn't come on

Take another look at the instructions.