When a moisture indicator lens becomes etched

Failures are usually triggered by excessive thermal cycling or improper torqueing of the cover bolts

Field techs know that a precise capacitance match is non-negotiable for system longevity

genuine OEM electrode designed specifically for high-demand residential and commercial furnace applications

Key Benefits Direct OEM Compatibility: Specifically designed as the factory-authorized update for the 8401-007

Robertshaw 5500-134M Switch Els PW 17895 When a moisture indicator lensThe Robertshaw 5500 134M Switch is a professional grade, voltage sensing infinite switch engineered for precise power regulation in commercial resistive load applications. As the direct OEM replacement for 5500 134 and the obsolete INF series, this 120V electric infinite switch features a compact M series design that fits within tight control panels without compromising performance. It supports a 15 Amp electrical rating and is built for a 100W to