POTTERTON PROMAX 28 COMBI Boiler - Hot Water Issue

[boiler101]

Hello,

I am seeking some advice, I have a POTTERTON PROMAX 28 COMBI Boiler and I noticed yesterday that the water around the house is no longer warming up. The heat exchanger has been changed 6 months ago, so I do not believe it is that. Does anyone have any ideas on what it could be?

Thanks

 

[cjg]

pump? does your boiler shut down fast? if you don"t know you can check on line.

 

[boiler101]

pump? does your boiler shut down fast? if you don"t know you can check on line.

the boiler is not shutting down or giving any error codes. just water is not warming up

 

[Admin]

What's the water pressure at? Should be around 1 bar I think.

 

[oz-plumber]

Probably temperature sensor or thermistor that is faulty.
It could be giving the boiler the wrong signals and the boiler thinks it has heated the hot water to the selected temperature.

Does the hot water pipe from the boiler heat up to selected temperature.
Feel the pipe where it exits the boiler. If that is hot then there is an issue downstream of that.