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The Goodman B1226207 is a genuine OEM suction-line accumulator built for the WPH4336AMAA packaged heat pump and compatible Goodman/Amana units. The accumulator sits on the compressor suction side and traps liquid refrigerant during defrost cycles and low-load conditions, metering it back as vapor so the compressor never ingests a slug of liquid. A failed or restricted accumulator can lead to compressor flooding, oil loss, and premature compressor failure — making this an inexpensive part that protects your most expensive component.
The OEM B1226207 matches the exact internal volume, port sizing, and oil-return orifice the system was designed around. Generic accumulators may not match connection sizes or return-orifice calibration, risking oil trapping and poor compressor lubrication. OEM ensures correct refrigerant and oil management.
Advanced — requires EPA 608 certification, recovery of refrigerant, brazing, evacuation, and recharge. This is a professional-only repair. Never braze on a charged system.