Trane SWT3732 Switch 326058-756 the Robertshaw 5300-721 sensing bulb

the Robertshaw 5300-721 sensing bulb is designed for compatibility with common thermal wells and compression fittings across the 5300 series range

significant oxidation on the burner surface

Is the HB33GQ230 an exact replacement for my old HC33GE235

the OEM remote may have internal circuit board fatigue and requires replacement to maintain system performance

Always verify your full furnace model and serial number to ensure airflow profiles match the factory specifications

Trane SWT3732 Switch 326058-756 the Robertshaw 5300-721 sensing bulbFor veteran contractors servicing industrial and residential units, the Trane SWT3732 is the go to triple pole double throw (3PDT) switch for maintaining multi speed system control. This HVAC toggle switch is engineered with a distinct High Off Low configuration, allowing for precise manual oversight of blower motors and fan speeds. Rated for 17 Amps at 124 Volts, its robust construction ensures it handles the inductive loads typical of Trane furnace