Disco 2 central locking help

(New member alert) Hi all, I’m new owner of discovery 2!
I have a problem with central locking!!!
Symptoms
.key fob won’t lock unlock any doors (it does have batteries)

.key will lock all the doors apart from the back door.

. My interior switch opens/locks all apart from back door

Is this a simple problem I’ve read through lot of posts none that pinpoint my symptoms exactly, unless missed it!

If anyone has any input to help me out I’d really appreciate it thanks all….!!

Welcome to the forum.
What about your spare key?

Anaconda said:

Welcome to the forum.
What about your spare key?

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Hi there yes have tried both keys still no joy

Panicatthedisco2 said:

.key fob won’t lock unlock any doors (it does have batteries)... yes have tried both keys still no joy

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Replace the RF receiver then, it's plug and play