Pressure drop

[meditek]

I have a Worcester greenstar CDI 42 combi boiler.

It was just been serviced 2 weeks ago and is one year old.

I am getting a .75 bar drop in pressure between hot (88C) and cool (48C). Is this normal because I do not remember this happening prior to the service?

Thanks

 

[plumbnuts]

Quite normal. This is just expansion in the system as it gets hot.
Steve