Recent content by tremor

If it was rubbish in the pipes to the switch wouldn't it fail to ignite when the boiler is reset? The pressure when the system is hot is about 1.7-1.8 bar and it does it more frequently when the water is hot. If the water is cold it will normally happen after the water has reached about 70C ie...

Hi, I've got a Vaillant THERMOcompact VU 242 Boiler. The ignition light keeps flashing which according to the service manual is a poor water circulation problem. The problem seems to occur when the boiler has been on for a while it may be operational for several hours and then the ignition...