Amana-Goodman B1256558 Sequencer 12" insertion length compatible with

12" insertion length compatible with my furnace plenum

The insertion length is specific to the heat exchanger geometry

Direct OEM compatibility: Designed as a direct drop-in replacement for Carrier HH18HA211

These two part numbers refer to the exact same technical specification and are 100% interchangeable in Lennox heating systems

Amana-Goodman B1256558 Sequencer 12" insertion length compatible withThe Amana Goodman B1256558 Sequencer is a critical replacement component designed for precise electric furnace control and heat pump auxiliary strip management. Engineered as a two stack heat sequencer, this part features a 24V heater coil that initiates specific timings for staged heating elements. This staged activation prevents nuisance tripping of the main circuit breaker by managing the inrush current during the initial startup phase. The