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Our Grohe 36023 no longer works. It is flashing error codes 11 and 13 and 01. The water is way too hot and then it conks out.

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Therocouple

Posted on Nov 11, 2014

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Posted on Jan 02, 2017

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SOURCE: Paloma tankless water heater model no PTG-74XP-2 error code c8

In several cases i have had to change the pcb board.... code 76 is no communication between remote thermostat and pcb..... this is a problem the first generation rheems seem to be having.... contact rheem if under warranty you will need to get pcb and program chip sent to you. Really need a experienced tech to install board and program it for you...... hope this helps...

Posted on Aug 24, 2012

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1 Answer

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 .

Mar 10, 2015 | Grohe Water Heaters

2 Answers

Why is there no hot water, only cold water coming out the mixer valve?


Sounds like the screen is plugged or the check stop is not working correctly

May 28, 2014 | Grohe Grohtherm Thermostatic Rough-In...

1 Answer

GROHE WIRELESS ERROR CODE 20 UNDERSTAND THAT THESE


its called a flow switch it is in the pump can b replaced when u turn on it pumps air in valve shuts replacemnt will sort it

Oct 02, 2013 | Grohe Grohtherm Thermostatic Rough-In...

1 Answer

Sometimes the hot water just goes cold


Here are a couple things to look for:

1) flashing burner light - a flashing burner light indicates the unit is getting an error code
common error codes:
A. continuous flashing - ignition failure or abnormal combustion; look for visible water in the machine indicating a leak, check gas pressure, debris or buildup on flame rod/igniter plug, or clean unit with compressed air
B. 3 flashes - error 16, abnormal outlet water temperature; typically this code indicates you'll need to descale you unit
C. 4 or 5 flashes - exotic error codes; you should contact Noritz technical support to deal with these codes

2. If there is no flashing code, try increasing the hot water flow. In the summer time you typically use less hot water; this can result in intermittent operation of your tankless heater. Increase water flow by either: A. cleaning your showerhead and removing scale deposits B. widening your flow restrictor C. Remove your flow restrictor in the showerhead

3.If none of these resolves your problem, you probably have debris in your flow sensor. Contact Noritz technical support for a walkthrough on removing debris from a flow sensor.

Feb 18, 2010 | Noritz 6.3 Gallon Residential Tankless...

1 Answer

Grohe valve Grohtherm Thermostatic Rough 34-126 I turn the mixer to full hot but the temperature remains tepid. All the other faucets in the


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.

Jan 23, 2010 | Grohe Grohtherm Thermostatic Rough-In...

1 Answer

Grohe bath faucet adjustments


grohe is a faucet all by itself ,,, I would recomend to have you call there repair dept. and explain this to them, you said you put in the new cartridge and thats about all there is to it, when you put on the handle make sure it is not over tightened, sometimes it pulls on the cartridge and makes it come on by itself good luck

Feb 21, 2009 | Grohe Integrated 1/2'' Shower Thermostatic...

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