A failed switch typically results in the furnace blower running continuously while the burners fail to ignite

Is this sensor compatible with all P-K MACH models

maintaining strict manufacturer specifications for airflow and temperature regulation

This OEM control board is designed to match original specifications for seamless mounting and terminal connectivity

It features 5/8" ODF sweat connections with extended copper ends

Resideo L4029E1227 Control 326058-756 A failed switch typically resultsThe Resideo L4029E1227 is a manual reset high limit control designed for critical fan shutdown in warm air heating systems. This normally closed SPST switch acts as a safety interlock, opening the circuit when the sensed air temperature reaches the fixed 125F high limit stop, typically indicating a potential fire condition or significant overheating within the ductwork. Featuring a 3 inch element insertion length, this bimetal actuated sensor provides