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The American Standard SEN0233 is a furnace flame sensor designed to detect flame presence in gas burners to support safe furnace operation. The sensor is constructed of metal with a flange-mount design and is intended for use in HVAC and furnace burner assemblies. It is sold as a single replacement unit and replaces multiple Trane/American Standard part numbers for direct substitution in compatible systems.
Flame detection sensor for American Standard/Trane furnaces; flange mount metal construction; single-unit replacement that supersedes several SEN part numbers.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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