Cleaning Filter On Tankless Water Heater

E407 e421 and e432 issues.

Cleaning filter on tankless water heater.

Add teflon to a threaded fitting and tighten this into the adapter with a pipe wrench and pliers. Then place a bucket under the cold side fitting to minimize any spills. Locate the shutoff valves. How to flush a tankless water heater and clean the air intake filter step 1.

With the water running out of the hoses turn the valve off on both hoses to stop the flow of water and preventing air from getting into the water heater. The rinnai is typical. You should notice that there are color coded handles underneath your. Wrap the outlet fitting s threads with teflon tape and tighten it to the outlet side of the filter.

Turn the cold water off and remove the filter screen again and clean it under running water. Navien tankless water heater problems are sometimes hard to comprehend not to mention fix the heater on your own. Open the water valve and let 4 to 5 gallons of water flow through the system. These are short circuited problems which are the real serious ones that you should call for tech support.

Unscrew the water filters and rinse them before putting them back into place. You should visit the heater at least once every three months. Close the cold and hot water ball valves on the unit. Using the adjustable wrench unscrew the braided stainless steel hose from the cold side connection and remove the filter screen using the needle nose pliers.

Reinstall the filter screen. I decided to purchase mine through amazon. Turn the water supply on slowly again to about 1 4 way open. The same you d buy at any grocery store.

Cut through the cold water pipes using a hacksaw and clean the edges with emery cloth. Empty the vinegar and place the bucket under the water heater. Know that a tankless water is not a set it and forget it water heater. Remove the hose from the cold water side and screw the cap back in place.