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View the thread, titled "Hot water not working on Ideal Isar M30100 - Diverter Valve?" which is posted in Gaining Plumbing Experience on UK Plumbers Forums.

B

bennyo

Hello

I need a bit of advice here, i've been having issues with this boiler recently, and now after a plumber fixed a water leak on the boiler I am left with no hot water.

To cut a long story short, today a plumber/engineer came to fix a water leak which turned out to be the 'o rings' of the heat exchanger. Once he fixed it and put it all back together the hot water did not work anymore (heating is fine).

When running the hot water the status does not change to 'd' and the water would not get hot. He said that it was likely the diverter valve being faulty, but then warned that with the age of the boiler other things could go wrong and it may not be worth spending more money on it and he would advise to get a new boiler.

As it was on a Sunday, he was keen to get off home, and left us to decide what to do. he wasn't enamoured with this problematic boiler!

Then, 10-15 minutes after he left, I tried out the water and it started coming hot and worked for another 15 minutes. 'd' came up on the display as expected and the water was fully hot. However, after 10 minutes it stopped working again and now it has not come back on since.

Is this likely to be caused by the divertor valve and/or the divertor valve head? Or something else? Any tips to pass on about how to diagnose for sure?

I'm relunctant to throw good money after bad - however if I can avoid spending lots on a new boiler it would be a great help.
 

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