Profitec Pro 500 PID: Check and Reset High-Limit Switches

by Whole Latte Love 1 min read Updated: March 4, 2025

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If your machine is not heating up, resetting the high-limit switches may solve the problem. The high-limit switches can trip if a machine is turned on and there's not enough water in a boiler, causing it to overheat. If your machine's green and orange lights are on, and your machine isn't heating at all, it could very well be due to your high-limit thermostats. You have two on your machine's boiler.