Common Pool Heater Error Codes Explained + How to Fix

This article may contain links from our partners. Please read our Disclaimer for more information.A pool heater makes swimming possible in the cooler months of the year. So you can use one to start swimming sooner or extend it. But here’s the kicker! Like all machines, pool heaters can fail or malfunction, and during that time, using the pool can be daunting.If you run a commercial pool, this will translate to lost revenue. And if you have a domestic swimming pool, it would mean no fun for you, which can be devastating.The best way to solve pool heater errors is to know where the problem is coming from. The good news is, you don’t have to stress over it when you have pool heater error codes.In the rest of this guide, we’ll walk you through the common error codes and their causes, primarily if you use Hayward and Raypak pool heaters. So, let’s get to it!Table of ContentsCommon Error Code CausesHayward Error CodesHayward Heater LO CodePressure Switch FaultAutomatic or Manual Temp Limiter...