Power flushed system now combi, radiator symbol flashing

[John.]

I have a vailliant Eco tec boiler about 8/9 years old.
It worked well, no problems and still is working well. However, since I had the power flush, I noted a couple of days later the radiator incon/symbol flashing on the electronic display.
I've read up today that it's noting to worry about and something like the combi is resting.
It has never done this before and only happens when we manually turned off the boiler ie via the on/off/timer switch.

I'd like to know why it's happening and how I can turn this off, please. I've not rang the power flush people as all they did was clean out the system.

I want the flashing icon to stop flashing and help how to do that.

A big thanks to all in anticipation of your help.

 

[Mottie]

I thought that was normal. My one has done that since new.

 

[ianmcd]

well as long as you got a powerflush that you didnt need , than happy days

 

[Deleted member 267285]

Generally means the burner is on for heating when it’s flashing.