Hi all,
Builder installed a Navien NPE-180A in our new home about 6 months ago. The condensate drain lid was leaking, and the incompetent plumbers couldnt fix it for months so the builder ordered a brand new unit and had a new plumber install it. (After some googling, i found out they could have greased an O ring to fix it lol)
Well, after the new one was installed, we received the error E110(air flow issue) days later after a rare snow here in West Texas. Turns out, there was water in the exhaust vent and the previous plumbers didnt have it vented correctly.
Now we have another issue... when the hot water is turned on, it sounds like an idling truck humming/vibrating. It starts when the hot water is first turned on and lasts for a while after its shut off. It's horrific and impossible to pick up on a recording.
The new plumber is acting like its normal - but the first unit NEVER made low frequency humming/vibrating noises.
Im exhausted from all of the issues ive had and dealing with these plumbers - can anyone here give me some advice? Do all tankless water heaters stay on for awhile after the water is turned off?
thank you!!
Builder installed a Navien NPE-180A in our new home about 6 months ago. The condensate drain lid was leaking, and the incompetent plumbers couldnt fix it for months so the builder ordered a brand new unit and had a new plumber install it. (After some googling, i found out they could have greased an O ring to fix it lol)
Well, after the new one was installed, we received the error E110(air flow issue) days later after a rare snow here in West Texas. Turns out, there was water in the exhaust vent and the previous plumbers didnt have it vented correctly.
Now we have another issue... when the hot water is turned on, it sounds like an idling truck humming/vibrating. It starts when the hot water is first turned on and lasts for a while after its shut off. It's horrific and impossible to pick up on a recording.
The new plumber is acting like its normal - but the first unit NEVER made low frequency humming/vibrating noises.
Im exhausted from all of the issues ive had and dealing with these plumbers - can anyone here give me some advice? Do all tankless water heaters stay on for awhile after the water is turned off?
thank you!!