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Hurlcon Astralpool Inlet Hi Limit Switch 71030 - 42° / 43° / 45° for all Heaters

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High Limit Switch used in all Hurlcon & Astralpool gas heaters. Common source of F2 error. Used on almost all pool and spa heaters. Found on the Inlet side of a gas pool or spa heater heater. AKA Thermal Cutout. Part Number 71030.

Failed hi limits cause the F2 Errors found on Hurlcon and Astral Gas Heaters. Commonly fail due to condensation and leaks. Should be replaced every few years as part of preventative maintenance. Both Inlet & Outlet hi limits should be replaced at the same time.

Suits all Hurlcon Astralpool HX, MX, Viron, HiNRG, JX Gas Heaters. Also suits Jacuzzi J-HN250C & J-HN400C heaters.

Suits The Following Heaters:

Hurlcon AstralPool :

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, ICI 200ICI 400Jacuzzi and many more. 

Notes:

  • If the heater has a brass plug, make sure it is not leaking or internally corroded.
  • Consider a complete Service Pack for your heater
  • This is for the INLET Side of the water connection. Outlet hi-limits are listed below

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Other High Limit (Hi Limit) Switches:

42-45C° Inlet Hi Limit (Hurlcon, Astralpool)

52-55C° Outlet Hi Limit (Hurlcon, Astralpool)
70C° Outlet Hi Limit (Hurlcon, Astralpool)
175C° Flue Temp Sensor (Hurlcon, Astralpool)
Hurlcon / Astralpool HiLimit Locator Brass Threaded Plug

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NEW - Service Pack for all MX, HX, HiNRG, Viron Gas Heaters:

Servicing a Hurlcon or Astral pool or spa heater? This is a pack of minimum parts needed for a 3 year service. Save $$$. 
Comes with parts that should be replaced every 3 years on a general Service. Click Here --> Astral Pool & Hurlcon Heater Service Packs