Amana-Goodman B1256554 Heat Sequencer

The Amana-Goodman B1256554 Heat Sequencer is a critical multi-stack control engineered for 20kW electric heat kits in Goodman, Amana, and Janitrol air handlers. Designed to manage the staggered activation of up to four heating elements, this OEM component prevents high-amperage inrush that can trip breakers or damage sensitive electronic controls. This sequencer features a 24V control circuit (bottom terminals) used to actuate the bimetal strip, which subsequently closes the 240V power circuits (top and middle terminals) with a precise time delay. With an on-delay of 1 to 110 seconds and a corresponding off-delay for the blower and elements, it ensures residual heat is fully evacuated from the cabinet post-cycle, protecting the heat strips and enhancing system efficiency. This B1256554 thermal relay is a direct replacement for various stacked configurations in AE60, A42, and A36 series units, providing the reliable timing required for professional-grade staging and sequence of operation.

• Staged Element Activation: Effectively staggers the power draw of 20kW heat kits to protect the electrical service and circuit breakers from overloading.
• OEM Precision Timing: Built-in bimetal heaters provide a 1-110 second delay window, ensuring synchronized operation between the fan and heating stages.
• High-Voltage Compatibility: Rated for 240V switching with a standard 24V coil, making it compatible with most Goodman air handler control boards.
• Robust Build Quality: Features durable terminal stacks and high-temp housing to withstand the thermal stress of repeated element cycling.

• How do I test if my B1256554 sequencer is failing? Use a multimeter to check for 24V at the bottom terminals. If the coil is energized but the 240V top terminals do not show continuity after 110 seconds, the internal bimetal or contacts have failed.
• Is this sequencer compatible with non-Goodman units? While specifically designed for Goodman/Amana models like the AE60-20, it can serve as a functional replacement in other 20kW systems if the voltage and timing specifications match.
• Why does my blower keep running after the heat shuts off? A sticking sequencer contact is a common cause. If the heat sequencer fails to open the fan circuit, the blower will run continuously until power is disconnected.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.