Hello, please can you help. My five year old Biasi Riva Compact M90e.24s started playing up the beginning of this week and now there is no ignition spark when starting. When the central heating was working normal, hot water was supplied at the tap, but with the central heating not in use, if you wanted hot water at the tap, the boiler would run [you can hear the fan] but no ignition spark. Now, there is no spark produced for the central heating or for the hot water? The green light flashes quicker than normal.
The red lock out light doesn't come on unless you turn off the gas tap - the lock out doesn't act immediately.
I am a engineer by trade but not within the heating industry. I have read through the Biasi service manual for basic checks. The circulating pump is rotating as expected. The fan motor turns as expected. The system pressure is 1.3 bar when cold. I can't see any obstructions within the flue, etc. The service manual fault finder suggests the air pressure switch or ignition device.
The boiler was serviced Oct 06 and I'm sure a new central heating switch membrain was fitted July/Aug 06.
Can you help?
The red lock out light doesn't come on unless you turn off the gas tap - the lock out doesn't act immediately.
I am a engineer by trade but not within the heating industry. I have read through the Biasi service manual for basic checks. The circulating pump is rotating as expected. The fan motor turns as expected. The system pressure is 1.3 bar when cold. I can't see any obstructions within the flue, etc. The service manual fault finder suggests the air pressure switch or ignition device.
The boiler was serviced Oct 06 and I'm sure a new central heating switch membrain was fitted July/Aug 06.
Can you help?