Turn the pump off and dump the vinegar.
Clr flush tankless water heater.
If you do get an error message and must descale or flush your tankless water heater kits are available online to do it yourself.
How to clean a hot water heater with clr.
If the water heater uses a gas heater rotate the gas.
Then shut off the cold water valve at the top of the tank and attach a garden hose to the existing drain valve and route it to a floor drain.
Turn off the power source for your tankless water heater.
If your water heater displays the error code it could be the result of limescale.
Close the cold water service port and remove the attached hose.
Turn off the electrical circuit for the water heater at the breaker panel.
Open the drain valve and.
Allow the vinegar to circulate through the heater for a minimum of one hour longer if the pump runs at less than four.
The flush of your noritz rheem rinnai tankless the water heater with the distilled white vinegar each year if you are using soft water or every 6 months for the hard water.
Calci free tankless water heater flush cleans heater coils thoroughly restores pressure and circulation in minutes with no strong odor calci free is a unique economical biodegradable cleaner containing a combination of organic inorganic and corrosion inhibiting ingredients it is easy to use and works twice as fast as other cleaners.
Close turn off the three water valves attached to your tankless water heater.
Keeping the hose as straight as possible put the other end of the hose over a basin or another area.
Shut off the main gas or turn off the circuit breaker for.
You can flush out a tankless hot water heater in about one hour.
Attach a hose to the drain valve.
This prevents cold water from flowing.
We recommend a 60 minute flush using a white vinegar as the descaling material advises fleming.
Turn off the water heater and disconnect it from the inlet pipe.
How do i flush clean my rinnai tankless water heater.