Fridge 12v relay buzzing

Hi can anybody help, My Dometic three way fridge relay has started to buzz when on 12v and engine running. Any ideas. Thanks in advance



Edgy

 

its starting to fail if it hasnt already. not an expensive part fortunately

 

they are cheap as chips just change it then if you still have the problem get the alternator checked as is it normally powered on by the alternator.

 

Thanks for that I have just changed the relay but same problem. I will get another relay tomorrow and hope that cures it

 

as above now get the alternator checked it may have a low output.