These should be replaced any time the header is removed for heat exchanger cleaning

this component is frequently used in #70 and #71 pilot usage scenarios

Professional-grade Amana-Goodman 10728332 Limit Switch designed for precise thermal safety in residential furnaces and air handlers

Thermal Stability: Features high heat resistance properties to prevent degradation in high-limit steam environments

System Reliability: Restores proper drainage flow to prevent pressure switch faults and potential system lockouts

Robertshaw 1751-007 Regulator Blocking Kit These should be replaced anyThe Robertshaw 1751 007 Regulator Blocking Kit (also classified as a regulator cover plate) is a critical component for technicians performing specialized gas valve conversions or maintenance on Robertshaw 7000, 7010, 7100, 7200, and 7222 series gas controls. This kit provides a non regulated solution, effectively allowing for straight line regulation or blocking functions when a standard adjustable pressure regulator is not required for the specific