Hi I just moved into new place with Navien NPE-240A. Whenever I start the washing machine the Navien makes a really loud banging noise (see link below).
I tried installing water arrestors on both the hot and cold valves at the washer but it didn’t help. The tankless works fine for showers and faucet. Any ideas thanks.
I tried installing water arrestors on both the hot and cold valves at the washer but it didn’t help. The tankless works fine for showers and faucet. Any ideas thanks.
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