High Limit Switch - 52-55° Astralpool Hurlcon Raypak Jacuzzi Hayward
High Limit Switch used in many gas & electric heaters. Used on almost all pool and spa heaters. Commonly found on the Outlet side of a heater.
Suits most Hurlcon Astralpool HX, MX, Viron, HiNRG, JX Gas Heaters. Also suits Jacuzzi J-HN250C & J-HN400C heaters.
Suits many Raypak heaters and Pentair heaters with Retrofit plugs.
Commonly fail due to condensation and leaks. Should be replaced every few years as part of preventative maintenance.
This is a common outlet high limit.
Hurlcon AstralPool Models
HX 70, HX 120, HX 150, MX 150, MX 200, MX 250, MX 300, MX 350, MX 400, MX 500, JX 130, JX 160, HiNRG 175, HiNRG 250, HiNRG 400, Viron 250, Viron 350, Viron 450, Viron 550, WX 70, WX 120, WX 150, Jacuzzi and many more.
131 Gemini, Raypak 280, Raypak 350, Raypak 430, and many more.
If the heater has a brass plug, make sure it is not leaking. If it is, consider repairing or replacing the part.
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