Hi I got a Worcester 28CDI boiler for hot water and heating in the house. But every time when I turn it on, the central heating indicator keep flashing which means ignition out and there is not hot water, but after I press the reset button few times, it works. However, when I use it for shower, the water are from very cold and then gradually become very hot, and then become very cold again and keep repeating the cycle every time.It can't hold it in a temperature . Is this suppose to happen? Also, the pressure gauge indicate the pressure is 0.5. I would like to ask is there anyone can help me?
Many Thanks
Many Thanks