Articles

Some sort of noise out of your Navien recirculation pump is normal. However, if it generates annoying or buzzing noise, there is something wrong with the system.  Generally, your Navien recirculation pump will produce a humming noise because of the wrong size primary loop, not purging the recirculation pump, or foreign materials getting into the…

Navien Tankless Water Heater cycles on and off due to a clogged faucet aerator, bad flow sensor, and a restricted cold water inlet filter.  Apart from these, clogged exhaust venting and defective 3-way valves can also cause the unit to cycle on and off every 8-10 seconds.  All the culprits I mentioned actually cut-off the…

Scale or mineral deposit buildup in the heat exchanger is one of the main reasons that prevent your Rinnai Tankless Water Heater from getting hot enough.  Apart from this, your Rinnai water heater will not deliver enough hot water if you set the temperature too low or any error codes displayed on the controller.  If…

Rinnai Tankless Water Heater No Hot Water [7 Easy Solutions] Rinnai Tankless Water Heater will produce no hot water because of these reasons:  Throughout this guideline, I will show you how to troubleshoot these issues and fix them. So, keep reading till the end.  Rinnai Tankless Water Heater No Hot Water [7 Easy Solutions] Now,…

Tankless water heaters, whether it comes from Navien or Rheem, function a little bit differently than a standard tanked unit. So, the problem you will experience with a tankless unit will be different.  For example, water goes cold while in the shower is the favorite one. There are several reasons responsible for this issue. But…

Your Navien Tankless Water Heater will deliver no hot water due to the following reasons:  In this Navien troubleshooting guide, I will walk you through every step to troubleshoot those issues. Plus, I will show you how to fix those water heater problems.  So, read on between the lines to discover the solution and let…