If the switch remains open (no continuity) even after the furnace has completely cooled down

it is standard practice to reuse or provide new foam insulation for the sensing bulb to ensure accurate temperature readings

preventing the release of captured debris during flow reversal

Utilizing genuine 550001908 components ensures that the heat exchanger assembly returns to original equipment specifications

Henry Technologies 205-1-3/8 Valve 320734-701 If the switch remains openThe Henry Technologies 205 1 3 8 is a high performance 1 3 8" ODS Globe Check Valve engineered to ensure unidirectional flow in commercial refrigeration and HVAC systems. Also referenced as the 205 1 3 8, this cast bronze check valve is specifically designed for installation downstream of oil separators to prevent condensed liquid refrigerant from migrating back into the separator via the discharge line. For optimal results, technicians should locate