Confirm the intake PVC is clear of obstructions

The MOT4179 is built to handle the thermal demands of continuous outdoor operation

best practice is to replace all seals and the filter drier whenever the refrigerant circuit is opened for a TXV repair

it won't create the necessary vacuum to engage the pressure switch

Rated for 175 PSI working pressure and 250 degrees F

Nordyne 1010439R Pressure Switch Refrigerant Confirm the intake PVC isThe Nordyne 1010439R Pressure Switch is a critical safety component designed for high efficiency HVAC units and mobile home furnaces. This OEM furnace pressure switch operates with a precise set point of 0. 60" 1. 50" water column, ensuring the inducer motor establishes a consistent vacuum before the ignition sequence begins. Built to handle the heavy duty cycles of Nordyne furnace repair, this switch effectively monitors venting conditions to prevent