White-Rodgers Lockout Codes

WHITE-RODGERS FURNACE CONTROL - LOCKOUT CODES

When system lockout occurs, the gas valve is de-energized, the circulator blower is energized at HEAT speed, and, if flame is sensed, the inducer blower is energized. The diagnostic indicator light will flash or glow continuously to indicate system status.

50A55 & 50M56 Integrated Furnace Control

50A50-206 Integrated Furnace Control

50A50-241 & 50A51-243 Integrated Furnace Control

To Reset the control after a lockout, do one of the following:

• Interrupt the call for heat or cool at the thermostat for at least one second but less than 20 seconds (if flame is sensed with the gas valve de-energized, interrupting a call for heat will not reset the control).
• Interrupt 24VAC power at the control for at least one second. You may also need to reset the flame rollout switch.
• After one hour in lockout, the control will automatically attempt a reset.

Non-Integrated Furnace Control