Profitec Pro 500 PID: Not Staying Hot or Not Getting Hot Enough

by Whole Latte Love 1 min read Updated: March 4, 2025
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Learn what to do when a Profitec Pro 500 PID espresso machine is heating up, but not maintaining temperature, or only reaching partial temperature setting.

When this occurs, there are typically two things that cause it: a bad static relay, or a fault in your machine's CPU. The static relay is more likely, so we recommend testing that first. If the relay tests out as being good, then we know it's a bad CPU.


First, you want to remove the machine housing and locate the static relay. Here's a support article with a video on housing removal:

Profitec Pro 500 PID: Diagnose and Replace PID Relay

Related Parts:

Static Relay