Operating on 120V/60Hz AC power

Contractors trust this UL/FM/CSA approved device for its reliability and its ability to be mounted horizontally without the need for specialized leveling

and NF series—onto existing valve bodies manufactured before 1994

and SL280DFV units

it typically indicates a fouled sensor or a grounding issue

Amana-Goodman ALFH20231E Permanent Filter 322056-301 Operating on 120V/60Hz AC powerMaintain peak performance and indoor air quality with the Amana Goodman ALFH20231E Permanent Filter. This high efficiency, washable air filter measures 23"x20" and is specifically engineered for Amana and Goodman SmartFrame air handlers featuring a "D" chassis. Unlike disposable alternatives, this reusable HVAC filter is crafted for long term durability, allowing users to simply wash, dry, and re install, reducing environmental waste and long term