When diagnosing furnace lockouts or intermittent ignition failures

Always verify the HVAC part number in the specific unit's parts manual to ensure the resistance curve matches the 10k or 20k ohm specifications of the board

verify the electrical ratings match the original compressor start relay to maintain system efficiency and prevent nuisance tripping of the overload protector

Engineered as a 130-160F AUTO limit switch

Reliable Mechanical Operation: Spring-wound design functions independently of power outages for consistent performance

Emerson Alco 061227 Solenoid Valve Els PW 17895 When diagnosing furnace lockouts orThe Emerson Alco 061227 (Model 200RB5T3) is a high performance pilot operated refrigeration solenoid valve body designed for liquid, discharge, or suction gas service. This 2 way normally closed valve features 3 8" ODF sweat connections with extended solder ends, allowing for installation without dismantling the valve, effectively protecting internal components from heat damage during the brazing process. Rated for substantial capacity, it delivers 8.