Help! Baxi 80 eco

[TSMarty]

Been having problems with the hot water pressure on my boiler.

The problem is that bad, it takes a good 35 mins to fill the bath up.
To get a half decent temp i have to have the tap running a trickle, i'm also unable to use the mixer shower because of this.

I have noticed when i ask the boiler for hot water the boiler fires up with the flames on full but after about 5 seconds the flames drop to a much smaller flame. This happens when i ask for either heating or hot water.

I'm Thinking changing the temperature sensor.

But would require some advice first

Thanks Marty

 

[baxpoti]

I'm Thinking changing the temperature sensor.

Easy to do as its a dry pocket, make sure there's plenty of heat sink compound on the new one.

The problem could be a blocked plate heat exchanger, you would need to do some temp measurements on the flow & returns and hot & cold to know
more.

 

[TSMarty]

Will try and get the temperatures from the flow and return and the hot (why the cold ?).

What temps would i expect to get if the boiler was running good.

Where is the heat plate exchange and Whats involved in cleaning it.

Many thanks

Marty

 

[baxpoti]

82°C, 71°C, 50°C and 15°C

Plate heat is at the back, bottom, middle of boiler

Search forum for advise on cleaning.