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I'm runnin out of hot water in minutes.Baseboard is fine.The hot water pipe off the boiler is hot and it goes thru a dial or adjuster to the taps.And it's warm/cold after that dial. Where do I start?

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  • Ben Moody Apr 24, 2015

    I unscrewed the top of the adjuster and tried a new one. It did not make a difference. Still my water temp fluctuates from hot to warm and never really gets hot again until I shut it off for a min. What's next? I want to try to fix myself if possible. A little background on the boiler; New Yorker model clw-3-ot, has a direct/power vent. It hasn't been serviced or cleaned for many years. I've lived here 4 years and haven't had to touch it. I noticed some green/white corroding around the valve and near hot outlet. I appreciate the help.

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  • Water Master
  • 42,042 Answers

That adjuster is there to reduce the water temperature so that scalding from boiling water doesn't occur
they can be adjust but if this problem has come in after a period of time then the sensor wax inside the adjuster is not as it should be.
they do fail and need replacing
most plumbers put the unit on the hot water outlet because they are lazy as the standard says that it is primarily for use on the shower, bath, basin systems and wash machines and kitchen sink are not required to be temp controlled.

Posted on Apr 20, 2015

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water must be set at 3lts a min ,check diaphragm valve move when hot tap is on, check microswitch ,best of luck

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SOURCE: Combi Boiler - Hot water pressure low

I have a 1 bed flat, above an old pub. I have a combi boiler but my water pressure is ridiculous. The shower water runns down the shower head. I'v been told that the cold water feed to the building is split to two boilers, one to the pub and one to me. Im thinking of installing a shower pump in between the boiler and the shower. will this work as my friend says he has done this and it sorted his problem out. I'v looked it up on the net and everything says this does not work. Help please.....

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