Underfloor heating controller issue - welcome suggestions

[DrEvil]

Hi all.

Attaching a picture of some of the wiring for my underfloor heating. Sorry I don't have exact model numbers for all the parts pictured, but the issue is that the left relay (Myson MPRT - Wireless) has stopped working (it repeatedly clicks) so I have put it in manual mode.

I am assuming that means it is dead and needs to be replaced, but if anyone knows if there is an easy fix, please shout!

A quick search suggested it may not be easy or that cost effective to get just a new relay - or it may not work with my receiver because the relay has been updated.

So I am wondering if there are other options other than getting the another Myson, or would that not work given the other Myson parts of this system. If so, I'd welcome what other options there are that might work and maybe offer a more modern receiver (especially if connects to a Tahoma hub which I recently got).

Thanks!!!

 

[CountryFan]

No idea what connects to the Tahoma hub, but essentially it seems cheapest to replace the receiver and prog stat with a better unit.

 

[joycenancy]

Hi all.

Attaching a picture of some of the wiring for my underfloor heating. Sorry I don't have exact model numbers for all the parts pictured, but the issue is that the left relay (Myson MPRT - Wireless) has stopped working (it repeatedly clicks) so I have put it in manual mode.

I am assuming that means it is dead and needs to be replaced, but if anyone knows if there is an easy fix, please shout!

A quick search suggested it space waves may not be easy or that cost effective to get just a new relay - or it may not work with my receiver because the relay has been updated.

So I am wondering if there are other options other than getting the another Myson, or would that not work given the other Myson parts of this system. If so, I'd welcome what other options there are that might work and maybe offer a more modern receiver (especially if connects to a Tahoma hub which I recently got).

Thanks!!!

View attachment 424640

Replacing a relay is not particularly complicated, but it is a task that requires someone with experience. Personally, I strongly advise against attempting this yourself; the risks are significant.

 

[DP]

A wireless programable thermostat should do the trick I suspect.

Not looked at the wiring schematic so above is pure assumption.
I assume the thermostat talks to the receiver by wireless means.
The receiver activates the Channel in the controller which in turn opens a thermoelectric valve on the manifold for water circulation to the room where the temperature has dipped.

An interaction mention by OP often due to relay failing to lock* power supply not upto scratch. Could be other reasons too is unlikely to have

*when one relay operates and proving circuit holds the second relay operated, failure of proving circuit would result in interaction described. The receiver most likely will have one relay to effect switching