I’ve worked on many Navien heaters over the last few years and solved countless issues. I became aware of the most common Navien tankless water heater error codes with time. If you know what to do, it’s possible to solve many of these error codes by yourself. I’m creating this … Read More
The Navien error code E438 refers to improper operation of the circulation system. From what I have seen after working on many heaters over the years, it only appears in the Navien NPE A-type models. The most common reasons behind this issue are: Besides them, a faulty check valve and … Read More
A tankless water heater has very little time to heat the water and get it to the desired temperature. If there are any leaks in the system, you won’t get adequate hot water. It can also cause other issues in the heater in the future. So, what causes the Navien … Read More
If you look up the Navien tankless water heater error code E110 in your owner’s manual, you’ll find that it refers to abnormal air pressure. There are many potential causes behind this issue. But from my own experience, I can tell you that the most common one is obstructions in … Read More
navien tankless water heater loud banging noise
Hearing any abnormal sounds from your water heater will surely get you worried. Especially, if it’s a humming noise and it lasts for a while. So what causes the Navien tankless water heater humming noise? Having worked on many Navien water heaters over the years, I can tell you that … Read More
When you see an error code pop up on your water heater, your first instinct should be to reset your water heater. Sometimes, that’ll be enough to clear the error code. So, how to reset Navien tankless water heater? More often than not, the reset procedure will be incredibly easy … Read More
You’re in the middle of a hot shower and suddenly your water heater stops working. Annoyed at the situation, you go and see that the breaker is tripped. To make matters worse, it keeps on happening. So, why does the Navien tankless water heater keep tripping the breaker? From my … Read More
If you know anything about tankless water heaters, you know that flushing them is paramount if you want them to last long. But you may be confused if you can do this job on your own or if you need professional help. So, how to flush Navien tankless water heater? … Read More
If you have a water heater that smells like gas, it could be a serious problem. You may have noticed a gas smell coming from the exhaust in your heater. So, what causes the Navein tankless water heater exhaust smells like gas issue? I’ve identified five common reasons that make … Read More