Pentair 471677 Millivolt Electronic Thermostat Replacement MiniMax CH and Plus Pool/Spa Heater

Buying guide: Pentair 471677 thermostat

This replacement thermostat is identified by the Amazon listing as a millivolt electronic unit for Pentair Purex Minimax and Minimax Plus heaters. Use it when your existing heater control is an electronic millivolt thermostat; if your failed component is a digital display controller or hi-limit device, compare those part numbers separately.

• Start by locating the failed part and comparing its printed model/part number with 471677.
• If the old component belongs to a different MiniMax controller family, order the matching replacement instead.

Because listings can use variant names such as Purex, Minimax, and Minimax Plus, rely on the exact part number and control style rather than marketing titles.

Source: Amazon product listing