Question about Bosch PowerStar AE125 AE125 Whole House Electric Tankless Water Heater...

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Easiboost power shower - problem

I have an easi boost power shower. it is about 18 months old. last couple of weeks if i turn hot tap on upstairs or downstairs -when i turn the tap off the shower pump fires up for about a second or two. i have no idea why its doing this but its driving me mad. any ideas how to cure it - the shower is fine otherwise

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It comes on when the pressure changes so when you open another faucet it changes the pressure and makes it come on,, check your pressure regulator valve on the main line comming into the house it has a screw in the center, if you have a pressue gage put it on either the water heater drain or out side hose bib , check the pressure when turning water on and off if it changes more then 5 lbs you need to change your prv valve. pressure regulator valve,

Posted on Jun 06, 2009

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Posted on Jan 02, 2017

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Peace,

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