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The Goodman 20197308 Pressure Switch is a genuine OEM safety control for the Amana AMVM960805CXBA modulating variable-speed 96% AFUE gas furnace and related Goodman/Amana models. Rated to actuate at -.10 inches of water column (WC) and wired normally open (NO), it confirms proper inducer draft and venting before the ignition sequence is allowed, shutting the furnace down if the flue or condensate drain becomes blocked.
Pressure switches are calibrated to a specific set point — using the wrong rating is a safety hazard. The OEM 20197308 is factory-matched to the AMVM96's inducer and venting, ensuring the furnace only fires when draft is proven. Generic substitutes with incorrect set points can allow unsafe operation or cause persistent lockout codes.
Moderate (2/5). Involves disconnecting two spade terminals and a sensing hose, then mounting the new switch. Always kill power and gas first. A confident DIYer can replace it in about 15 minutes; because this is a safety device, having a licensed HVAC technician verify operation is strongly recommended.