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I have a Grohe Avensis Classic dual Thermostatic Advanced shower mixer - And although the hot & cold water supplies reach the mixer, the water coming out of the shower head is almost cold. I have taken the mixer off and checked the filtrs - they are clean. I am told the solution could be a new cartridge, but which one and how is it fitted?

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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  • 34 Answers

SOURCE: little hot water

Is it only in the shower?

Posted on Feb 09, 2009

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gary1121
  • 332 Answers

SOURCE: Grohe Thermostatic Valve

the temp, control valve is getting to hot!!! there for only let so much hot water go thru, did you take the inner parts out when soldering this in, if not you might have damaged it, and if so need to replace the cartdrige

Posted on Jun 06, 2009

pipesster
  • 20 Answers

SOURCE: Grohe valve Grohtherm Thermostatic Rough 34-126

The thermostatic stop is set too low. Havent set a grohe before but most other thermostatic shower valves work similar. pull off the handle(however a grohe handle comes off . . ) there should be a notched ring or stop which keeps the handle from going all the way hot. pull out the ring and turn it a few teeth hotter put back and reinstall handle try water temp and adjust again if necessary.

Posted on Jan 25, 2010

  • 122 Answers

SOURCE: my thermostatic mixer shower will not turn off

he probably put it together wrong.
there is usually a blue gasket inside for testing purposes, if that is not removed, the valve will not turn off.

Posted on Aug 15, 2010

  • 1015 Answers

SOURCE: My Grohmix 19 421 thermostatic

The problem might be fixed by removing the cartridge and cleaning it thourghly and resetting temp stop.Yes the cartridge could be bad but new parts are readily available. Depending on water quality conditions in you area it may be difficult to disassemble so it may be a good idea to have a plumber do it for you. Thank you.

Posted on Mar 03, 2011

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Could my grohe thermostatic shower be letting cold water into my system? Some other taps run cool but the shower is running OK temperature


If you have single handle facute one bad cartridge in the system may be acting like a mixing valve and allowing cold water to mix with hot not allowing water to get hot enough .

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he probably put it together wrong.
there is usually a blue gasket inside for testing purposes, if that is not removed, the valve will not turn off.

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Hi,

If the hot and cold are fitted the wrong way round then the thermostat on the shower unit cannot operate properly!

Most thermostatic mixer showers have a 'bi-metallic' thermostat, if you supply the hot to the cold and vice versa IT WILL NOT WORK.

It is like wearing the left shoe on the right foot and the right on the left! It doesn't work.

Re-install the hot and cold to the correct supply, and this will sort it.

I hope this helps.

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the temp, control valve is getting to hot!!! there for only let so much hot water go thru, did you take the inner parts out when soldering this in, if not you might have damaged it, and if so need to replace the cartdrige

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