Integral vent limiter simplifies installation by meeting safety standards for indoor venting without extra piping

000 cycles under maximum electrical load

verifying the microamp reading on this sensor is a standard diagnostic step

Common indicators of a faulty fan relay board include the blower motor failing to start despite a call for air

maximizing heat retention within the heat exchanger and reducing external cabinet temperatures

Lennox 18J74 Pressure Switch Els PW 17895 Integral vent limiter simplifies installationThe Lennox 18J74 Pressure Switch is a high precision low ambient pressure switch engineered to regulate head pressure by cycling the outdoor fan motor during cooling cycles. Designed specifically for HVAC professionals, this OEM replacement part ensures your system maintains consistent evaporating temperatures, effectively preventing evaporator coil icing and protecting the compressor from liquid slugging. With an open temperature of 150F and a close