combi boiler pressure dropping and clock resetting to 12.00

[shellie]

hi please someone shed some light on this for me
i have a worcester combi boiller that is fine when running on the timmer but when it turns off the pressure drops below the line and the whole system turns itself off and red warning light comes on. to restart it you need to raise the pressure above the line and it starts again but the clock always goes back to 12.00 this started when i bled a radiator in the house that was cold at top corner dont know if thats conected but thought i should say
please excuse my explanation i know nothing about boilers!!

 

[shellie]

i dont seem to be getting any replies can anyone help
boiler is due to be serviced next month is there any harm leaving it like this for another 3 weeks and is it something that will be covered in my service?

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