Raypak 001811F High Limit Switch for ELS 552-2 and ELS 1102-2 Electric Spa Heaters

Raypak 001811F High Limit Switch for ELS Electric Spa Heaters

Part # 001811F | Genuine Raypak replacement part | For ELS 552-2 and ELS 1102-2 electric spa heaters

This is the high limit for Raypak's ELS 552-2 and ELS 1102-2 electric spa heaters, sold as the Spa-Pak 552 and 1102. The high limit is the heater's built-in protection against overheating: Raypak describes it as a resettable device that keeps the heater from running in an unsafe condition if it is powered while water flow is too low. The same part number is used on both sizes.

✅ Fits these Raypak models:

• Raypak ELS 552-2 electric spa heater (Spa-Pak 552), built from 11/1983
• Raypak ELS 1102-2 electric spa heater (Spa-Pak 1102), built from 11/1983
• Not for gas pool and spa heaters

🔧 Details:

• Raypak parts list name: High Limit, item 7
• Raypak catalog name: KIT-HIGH LIMIT 551/552, 1101/1102
• Heater ratings from Raypak's data sheet: model 552 is 18,767 BTU/h input and draws about 23 amps; model 1102 is 37,534 BTU/h input and draws about 46 amps; both run on 240 V single phase power

📌 Good to know:

• Raypak's catalog name for this kit also lists 551 and 1101. Raypak's model history shows ELS 551 and ELS 1101 electric heaters built 1979 to 1983 but links no parts list for them, so that fit is not confirmed: compare the old part before ordering.
• Raypak gas heaters use different high limits, for example 600892B (135 F) and 600893B (140 F).
• These heaters run on 240 volts. Electrical service work is for a qualified technician.

Check your heater's model and serial number before ordering.