Pentair | 471694 | 150 Degree Hi-Limit Thermostat for 200-400 MiniMax NT Heater

The Pentair 471694 150 Degree Hi-Limit Thermostat is a replacement safety control component designed for compatible MiniMax NT pool and spa heater applications in the 200 through 400 model range. This part helps monitor heater temperature conditions and interrupts operation if the system exceeds its intended safety limit, supporting proper heater protection and dependable performance during routine use.

Key Features

• Replacement hi-limit thermostat is designed for use with compatible Pentair MiniMax NT heater systems in 200, 250, 300, and 400 model sizes.
• The 150 degree temperature rating supports heater safety response when internal operating conditions rise beyond the intended limit.
• This component helps interrupt heater operation to protect the system from overheating during normal use.
• Intended for maintenance and repair when the original thermostat becomes worn, damaged, or no longer responds correctly.
• OEM replacement design helps maintain fit and function within the original heater safety and control system layout.
• Proper hi-limit thermostat operation is important to dependable shutdown response and safe heater performance.
• This part is commonly associated with MiniMax NT STD, NT TSI, and NT LN heater configurations using the matching thermostat style.
• Targeted replacement format allows service of the heater safety circuit without replacing larger heater assemblies.

Product Overview

The Pentair 471694 Hi-Limit Thermostat is a service replacement part used in the safety control system of compatible MiniMax NT heaters. Its primary role is to monitor internal temperature conditions and help shut down heater operation if excessive heat is detected. Because pool and spa heaters rely on protective limit controls to safeguard internal components and maintain dependable operation, the hi-limit thermostat is an important part of the overall heater safety system.

This part is well suited for repair situations where the heater remains otherwise serviceable but the original thermostat has become unreliable or nonfunctional. It is commonly tied to MiniMax NT heater applications in the 200 through 400 model range and is also frequently referenced as a 150 degree high limit thermostat for these systems. For pool and spa service professionals maintaining compatible Pentair MiniMax NT heater platforms, the 471694 fills an important role in heater safety, diagnostics, and ongoing equipment upkeep.