Worcester Greenstar 24i/28i Junior - Reset and blue lights flashing

[alioco]

Hello all - first post here.
We had the boiler fitted only 3 weeks ago.
This morning, woke to find the red reset light flashing as well as the main blue boiler light.
The pressure meter reads exactly 1.
I have held down the reset button, lights go off, boiler gurgles for a while, flashing lights return.
I have also tried switching off at the mains for 30 secs, then switching back on.
No hot water, no heating.
Anyone got any other troubleshooting ideas before I call someone out?

Much appreciated

Alison

 

[GasmanxxxR1]

The instruction manual will tell you the fault code, look at the blue light and you will see it flashes a sequence, match it to whats in the installation and servicing manual

Not sure there is a red rest light on i juniors, is there?

 

[Kev the gas]

Boiler Gurgles Blocked condensate outlet ??

Not sure there is a red rest light on i juniors, is there?

Spanner illuminates/ flashes red when boiler has locked out.