My vokera linea ag plus cycles hot and cold when either shower is used. Watching the boiler it fires up runs for 30 secs switches off 30 secs switches back on then off etc etc.
I have the same problem with taps or showers. Checked again, hot tap turned on and the boiler ignites, flame on for approx 1 and a half minutes, flame shuts down for approx 12 seconds and carries on following this cycle while the hot taps or shower is on. Turned up the thermostat on the heating and that works fine, boiler ignites and runs constant until thermostat is turned back down. Thanks
ian
February 2010
is it ok with the taps? if so then the flow rate through the boiler may be too low for the showers, or the shower thermostats may be faulty.
Ian
February 2010
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.