Cost of descaling a Powermax 155 boiler

[christiansearle]

I have serious problems with my powermax 155. No hot water or a trickle may be. CH is fine.
I have replaced the blending valve which has made it a little better but probably enough ht water to fill a sink up max.

I have read the coil is probably lime scaled up. I live in an area where we do get real hard water.

I live in Rainham in Kent.

How much would it cost to descale my boiler ? Roughly and how long would you think it would take ?

Thanks
Christian

 

[Prof.plumb]

dont think that is possible in fact i think you can get a kit to do an external heat exchanger for it. Word to the wise rip it out and fit a good combi.

 

[luke3917]

I have serious problems with my powermax 155. No hot water or a trickle may be. CH is fine.
I have replaced the blending valve which has made it a little better but probably enough ht water to fill a sink up max.

I have read the coil is probably lime scaled up. I live in an area where we do get real hard water.

I live in Rainham in Kent.

How much would it cost to descale my boiler ? Roughly and how long would you think it would take ?

Thanks
Christian

Did you have your 155 descaled Christian ? I got the same problem and I am interested in your results

Thanks

Luke3917