Pool Heater Articles, DIY Fixes, Guides and Tips

The Hayward heater LO code is one of the most common Hayward heater error codes. The possible causes behind this … Read more

The Pentair heater error codes displayed in your heater display tell you that you need to address specific issues with … Read more

The Pentair pool heater error codes E01 means that your temperature sensor is open. It can be caused by a … Read more

The Pentair heater error code R14 isn’t actually an error code. It is the code that pops up on your … Read more

The R13 code on a Pentair heater is not an error code. Rather, it’s a sign that the heater is … Read more

Your Pentair MasterTemp 400 turns on and off due to a faulty temperature regulator, damaged ignition control module, bad high … Read more

The problem of Pentair MasterTemp 400 not heating can be caused by a faulty temperature sensor, broken manifold bypass valve, … Read more

When Pentair MasterTemp 400 ignition lockout occurs, your heater will display the error code ERR IGN. You need to identify … Read more

There can be many possible reasons behind your Pentair heater not turning on. A dirty filter-tripped safety switch, low voltage, … Read more

Pentair MasterTemp 400 heating light flashing is caused when the heater is calling for heat but not igniting. A faulty … Read more