Common Questions Is the 8402-094BX compatible with older systems using the S8402-094

the technician must diagnose the root cause of the flame rollout before attempting to reset the control or operate the unit

a hot surface ignitor

Green indicates power is present

90" WC pressure switch setpoint to verify that the venting system is clear and the inducer motor is moving sufficient air for safe combustion

Reznor 194536 Transformer 326058-757 Common Questions Is the 8402-094BXThe Reznor 194536 Transformer is an essential OEM replacement component designed for high performance space conditioning units, including YDHA, YDMA, YDSA, and YWMA models. This robust 40VA HVAC transformer facilitates a precise step down from a 208 240V primary voltage to a stable 24V secondary voltage, providing the necessary low voltage power for thermostats, ignition modules, and integrated control boards. Engineered to maintain electrical