I recently moved house and after 20 years of electric storage heaters, now have gas central heating with a Worcester RD628 combi boiler. Yesterday it cut out and there was a red flashing light. On reading the manual I discovered that there could be two speeds of flashing warning light, one more serious than the other. Luckily, the warning light was the slower of the two, and the manual instructed me to press the switch till the light went out and it should be okay, which it seems to be, fingers crossed.
However the info about the other warning light was a bit vague. Can anyone tell me what the difference is between the two lights and what they mean? The manual suggested that if the faster light came on I should not attempt to use the boiler and should get an engineer in ASAP, but did not say what problem with the boiler woud cause this to happen in the first place. Perhaps some of the info is missing, but the more I know about this boiler the easier I'll sleep at night, so any info about these warning lights would be most welcome!