Keeps shutting down displaying these codes E351 E352 E353. NAVIEN MODEL

Navien E351. My Navien stop working and I get a code E351. 3 years old. Just started Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Your Navien Tankless Water Heater will make a humming noise due to the following reasons: To stop the humming noise, you must fix those issues

My Navien stop working and I get a code E351. 3 years old. Just started
My Navien stop working and I get a code E351. 3 years old. Just started from www.justanswer.com

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. At some point, you may find yourself staring at your Navien tankless water heater's digital interface, puzzled by a perplexing code: E351

My Navien stop working and I get a code E351. 3 years old. Just started

Check the auto feeder valve E351 High water pressure Check the auto feeder valve E352 Abnormal operation: water pressure sensor Check the water pressure sensor Why Is My Navien Tankless Water Heater Making A Humming Noise? This… ⚠️PERFORM THIS AT YOUR OWN RISK!⚠️ I am not a licensed plumber or HVAC technician

6th Annual MVP Awards HVAC ProBuilder. When it comes to dealing with the Navien E351 error code, as a homeowner, it can be a frustrating experience Check the auto feeder valve E351 High water pressure Check the auto feeder valve E352 Abnormal operation: water pressure sensor Check the water pressure sensor

Navien NCB190/060H 160,000 BTU DHW 60,000 BTU HTG Condensing CombiBo. Your Navien Tankless Water Heater will make a humming noise due to the following reasons: To stop the humming noise, you must fix those issues Why Is My Navien Tankless Water Heater Making A Humming Noise? This…