Constructed from heavy-duty galvanized steel to resist corrosion in high-humidity duct environments

ensuring direct compatibility with shared Nordyne

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

Can the Ranco A30-304 be used to replace a SPDT control

Lochinvar & A.O. Smith 100110389 Burner Assembly 320074-702 Constructed from heavy-duty galvanized steelMaintain 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