Romalon 42002 0024S Flue Stack Sensor for 400 Pool and spa Heater Electrical Systems

42002-0024S Stack Flue Sensor The part works with Pentair MasterTemp pool and spa heater electrical systems. The part also works with Pentair Sta-Rite Max-E-Therm pool and spa heater electrical systems model SR200, SR333, SR400. The package includes 1pc of 42002-0024S Stack Flue Sensor. This part works with the following models: Pentair Sta-Rite Max-E-Therm pool and spa heater electrical systems model: SR200, SR333, SR400. The part possibly fixes the following problems: A stack flue sensor, located on the exhaust elbow of a pool heater, prevents the flue gas output from exceeding 500°F. When this fails, your system will show error codes E-02, E-05 or E-06 to indicate that the stack flue sensor must be replaced. Replacement steps: 1.Turn off the filter pump and all electrical power to the pool heater. 2.Allow the heater to cool for at least 30 minutes before proceeding to the next step. 3.Unbolt and remove both the upper left and upper right jackets from the heater. 4.Disconnect the wires from the old indoor stack flue sensor. 5.Remove the old sensor by turning it counter-clockwise with a ½” open end wrench. 6.Install the new sensor, sealing it with a bead of RTV sealant before threading it into the exhaust elbow. Please Note: Make sure the power is shut off before replacement. Wear work gloves to protect your hands. The part is compatible spare part (not original), the brand names mentioned and any related models designation above are only for purposes of demonstrating compatibility.