Rheem pressure switch assembly unit. Model # 42-102343-01 (NEW) old stock Qty-1. I guarantee this switch to work or your full money back and free return shipping. Please inquire if interested in purchasing the entire stock at an even more discounted price. Free Same Day Shipping
The Rheem 42-102343-01 Pressure Switch Assembly is a genuine factory Original Equipment Manufacturer (OEM) safety component used to monitor and regulate performance within specialized Rheem and Ruud HVAC units. It features a robust plastic and steel housing design engineered to withstand standard pressure tolerances within residential or light commercial systems.
Product Overview & Availability
Rheem 42-102343-01 Pressure Switch Assembly: This is a direct-fit factory component manufactured to OEM standards, preventing universal compatibility errors and maintaining the exact safety specifications of your original HVAC unit.Component Construction: Built from a durable blend of premium metal, steel, and high-impact plastic to protect internal electrical microswitches from mechanical wear and heat stress.Buying and Sourcing Options: Since this is a legacy or highly specific factory part number, it can be rare to find it on via mainstream digital retailers.
The assembly functions as a critical safety gateway inside your system. Before ignition occurs, the furnace draft inducer motor must pull a correct vacuum level. Once adequate draft pressure is verified by this switch closing, the control board safely permits the igniter to glow and the gas valve to release fuel. If the switch is stuck open, damaged, or clogged, the system locks out and refuses to start up to prevent hazardous fuel leakage or venting issues.
Typical Symptoms of a Faulty Switch.
Inducer Runs without Ignition: The draft motor spins continuously, but the igniter never glows.Control Board Flash Codes: LED indicator lights on the main board blink an error code denoting "Pressure Switch Stuck Open" or "Stuck Closed".Short Cycling: The unit starts up briefly but drops out right before firing.