The Efficient Home Forum

I installed my Evohome Oct 2015 and up till now it has been working fine.
Recently one of my BDR91A relays has had a flashing red light occasionally, occasionally the connected zone valve not opening, but nothing showing in the fault logs. Overnight, or next day, the BDR91 and zone valve would be back to normal next day. Sometimes using Away or Economy would cause the red light to flash.

I decided to unbind and rebind the BDR, but the flashing red light would not turn itself off, despite a "success" message.
I have a spare BRD so I swopped it with the faulty BRD and completed the binding sucessfully. (red light stopped flashing).

I am assuming the original BDR91 is faulty. Is there anywhere it can be tested or reconditioned?

Any chance of images of the installation?

Your BDA91 is broken.
When you instal the new one you only have to change the cover. Rebind and than it is akoy.
I do instal Evohome a lot. This is a problem that happens.

I would say it is very hard to identify if the BDR91 is faulty without images... Installation errors account for a massive proportion of BDR91 failures in my opinion.