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L7224C1004 & Boiler temp do not match
I have a New Yorker boiler with a tankless coil. Our domestic hot water supply has been subpar. I noticed the HL was 170 and LL was 140, so I turned them up to 190 to 170. That fixed the domestic hotter issue, but i noticed the boiler T&P gauge read 220 when it shut off, and the aquastat read 190. Need some help here please.