what does f1 mean?
charging system up?
no hot water and pressure valve is on red and water is leakiing outside?
should my central heating pump run all the time ?
burner going of after 2 or 3 minutes and on?
no hot water?
how can i fix the hot water on my 25 cdi?
dhw continues to run even though the taps are off?
hot water problem?