Replacing wired doorbell chime

cb101

Hi

I wonder if someone can help. As the title suggests I would like to replace my door bell chime unit as I'm in the throes of redecorating and it's a bit big and ugly and I'm not sure what size unit I need to buy. The transformer says it's a 4-8-12V, 1.75 amp one (morphy richards type MR5). Does this mean it's 4 or 8 or 12 v ?

One of the sites I've been looking to buy from says "All transformer powered models must operate bettween 8v - 12v ac and be supplied with 1 amp transformer " so is my transformer too big for these?

I know I could replace with a wireless one but thought I could use the system that's already there , also I'm in an old house so would prefer something that's not too modern looking

Can anyone advise

Thanks

C

Scrounger

cb101 wrote: »

The transformer says it's a 4-8-12V, 1.75 amp one (morphy richards type MR5). Does this mean it's 4 or 8 or 12 v ?

Yes, 4,8 or 12vac (depending on which tapping you use).

cb101 wrote: »

"All transformer powered models must operate bettween 8v - 12v ac and be supplied with 1 amp transformer " - so is my transformer too big for these?

No, it means 1 amp minimum so 1 amp or over is fine.

Scrounger

cb101

Thanks scrounger, though I'm not sure what tapping it is being used at at the moment, and I don't know how to find out- can't see anything on the door chime unit to indicate this. So from what you say am I correct in thinking I should be able to connect a 8 V 1 amp chime to this transformer. Though sounds like I'll have to get an electrician in rather than be able to do a straight swap

Thanks
C

Scrounger

The existing transfomer should have a terminal cover which lets you access the screw terminals to select the secondary output - 0,4,8,12v and these are usually arranged in voltage order.

Can you follow the wire form the chime unit to the transformer?

Can you see a removable cover or terminals on the tranformer where these wire go?

Are there any markings on the transformer eg indicating 4/8/12?

Could you post a picture of the tranformer?

Scrounger