this 1/3 HP motor delivers a consistent 1115 RPM

it usually indicates a mechanical failure within the bimetal disc or significant oxidation on the contacts

When you are looking for a Utica Dunkirk 2380003 replacement

Utilizing OEM-spec elastomer materials

Lochinvar & A.O. Smith 100110389 Burner Assembly 320074-702 this 1/3 HP motor deliversMaintain peak combustion efficiency with the Lochinvar & A. O. Smith 100110389 Burner Assembly. This genuine OEM replacement burner is engineered specifically for natural gas systems, featuring a precision calibrated #21 orifice to ensure the exact manifold pressure required for stable ignition and heat transfer. In the field, burner degradation often leads to flame failure alarms or soot accumulation on the heat exchanger; replacing a warped or