Combi-Boiler problem: Can you push for? The water warmth cycles between hot and cold at about a 30...

The water warmth cycles between hot and cold at about a 30 second interval. No other river being drawn surrounded by the property. Switching the boiler to 'water only' make no difference. The pressure gauge shows 2.5 bar+
Which gas hot river system is most reliable...
Hi there remember me?
reading your problem reminds me of the time when we have gas water heaters contained by our home with a pilot wispy & the flame kept continiosly cutting surrounded by and out we checked and found the thermostat switch to be faulty I do not know if yours is fitted near one but if it is a good piece to check mabee perhaps could be Any how best of luck your friend Jeff

What does it scrounging when the inside of...
Sounds to me that you enjoy a flow rate regulator fault, or a possible build up of limescale near the heat exchanger. Try turning the hot hit on slightly so that there is of late enough flow to ignite the boiler and see if that keep the hot water constant. If it does, next my initial thoughts would be the flow rate regulator. This of course does depend on the cause of your boiler, unfortuanately, you havent said.

There is one other possible cause, but again you havent said whether or not the river flow varies every 30 second or just the river temperature. If the wet flow varies try using a different hot marine tap. I once have a similar problem caused by a defective jumper inside the tap body. Everytime the dampen heated the jumper up it expanded satisfactory to close the water flow rate.

Good luck

Hope this help.
Help possible Tornadoes!!?
Answers:    it is any a problem with a warmth thermistor,or a problem with the upper air pressure switch,possibly the venturi.you need to gain in someone who specializes contained by heating repairs.