Feb 22, 2016 - Heaters, though, can be rather tricky without the manual. . a chart we created to help pool owners identify the meaning of Raypak's fault code. Jun 14, 2017 - I tested my Raypak pool heater a few weeks ago and it started fine. . I had removed this sensor from the heater before getting the system to run . Jun 2, 2017 - My Rheem heater is giving me a message of sensor failure. . 27,000 Gallon In Ground Pool. Built in 2012. . My model is 266a it is a Raypak. Please read this manual prior to installing this product. It contains all installation, operation and maintenance of your Raypak pool or spa heater. Please Neutral. Sw itched Closed. N orm ally C losed. Red. White. Black. White. Red. Black. This manual should be maintained in legible condition and kept adjacent to the Your pool/spa heater has been designed for years of safe and reliable pool/spa water heating. the white wire to the 'Ret' or neutral leg of the power supply. This manual should be maintained in legible condition and kept adjacent to the heater or kept . The new Raypak series RP2100 pool heaters have been designed to eliminate the white wire to the —L2' or neutral leg of the power supply. Please read this manual prior to installing this product. It contains all the . Ceramic fire tile refractories are used in Raypak pool and spa heaters. Refractories Neutral. S w itched C losed. N orm ally C losed. Red. White. Black. White. Red . manual can result in unsafe operation of the heater. To avoid . WARNING: Altering any Raypak pressure vessel the 'Ret' or neutral leg of the power supply. The method used to prove flame in most gas-fired products produced in the . in proving flame, and because of this, believe the sensors sometimes fail. . Now measure between neutral (white) and ground to be sure you have no voltage (0.0 vac). . Uncomplicating The Heat Pump: Electrical System Troubleshooting DVD. Refer to the user's information manual provided with the heater. . heater control for Raypak commercial boilers, water heaters and pool heaters. L2 (Neutral).