Hot Spring Replacement Heater (after 2002) Control Sensor (Blue)

Hot Spring Control Sensor (Blue) – Heater Replacement (Post‑2002 Models)

OEM Temperature Control Sensor for Hot Spring Spas (2002 & Newer)

This blue control sensor is an official replacement part for Hot Spring spa heaters manufactured after 2002. It acts as the heater’s temperature control or high-limit thermistor, ensuring safe and accurate operation of the spa’s heating system.

Technical Specifications

• Model/Part Number: SN-HS612

• Function: Heater control temperature sensor (high-limit)

• Compatibility: Hot Spring and Tiger River spa heaters built after 2002

• Connector Type: JST-style plug for direct connection to control board

• Sensor Head Diameter: 16 mm

• Cable Length: 1320 mm (approximately 52 inches)

Key Features

• OEM-specified replacement for factory-installed sensors

• Provides accurate high-limit temperature detection to protect the heater

• Plug-and-play design allows quick installation with no modification

• Durable construction for reliable performance in spa environments

Common Applications

• Resolving heater-related issues in Hot Spring spas (e.g., flashing “Ready” light or sensor errors)

• Compatible with IQ2020 and similar Hot Spring control systems

• Used in models such as 76227 and 76228 for post-2002 spa heaters

Benefits

• Ensures safe shut-off of heater in case of overheating

• Helps maintain consistent water temperature

• Avoids unnecessary heater lockout or error messages

• Easy to replace and long-lasting in performance