Why does my Pentair pool heater keep turning off?

Overheating Pump The modern-day pool heaters are designed to shut off when pool heater running but not heating, causing overheating to the pump. This is the duty of the thermal overload switches. So if your heater keeps shutting off, you may need to look at your thermal overload switches and change the faulty ones.

What does E05 mean on Pentair pool heater?

ignition has failed
The ‘E05’ error code indicates that the ignition has failed. In many cases, the heater may fire up and heat for a few minutes, but shorten out. Typically, this is caused by a bad igniter, but not always. This also frequently happens to pool owners who have not fired their heater in months.

What does R13 mean on pool heater?

Shawn the R13 signifies the revision of the PWA on startup or reboot. If the membrane pad switches to spa when the heater ignition sequence is complete and the main burner is running and you can’t switch it back to pool then there could be an issue with the membrane pad and or PWA.

Why is my pool heater turning on and off?

If your swimming pool heater is cycling ON and OFF, it is an early indication that the electrical connection or power supply is experiencing issues.

What does a thermal regulator do in a pool heater?

A thermal regulator and an internal bypass regulate the water flow through the heat exchanger to maintain the correct outlet temperature. The heater operator control panel board assembly is located on top of the heater.

How do you test a flue sensor?

1) Using a multimeter, set the device to resistance testing mode (The icon looks like a horseshoe). 2) Put each multimeter prong on the stack flue sensor terminals. If the resistance measures 0 it is bad, replace the stack flue sensor. 3.5 ohm or higher means the sensor is working.

What does a thermistor do in a pool heater?

An electronic temperature sensing thermistor in the manifold adapter inlet controls the heater operation. When the inlet water temperature drops below the temperature set on the operating control, the burner controller supplies power to the combustion air blower through a series of safety interlocks.

Why is my pool heater leaking water?

The heater is leaking water. The pool heater heat exchanger may be leaking because of chemical or sanitizer damage. There could be a gasket leaking, or a loose connection to the pressure switch. Finally, a drain plug could be loose, or missing an o-ring.

How to troubleshoot a Pentair mastertemp pool heater?

Our Pentair Mastertemp Troubleshooting Guide starts with the error codes shared by both models, and follows into a 6 page flowchart to step by step troubleshoot a Pentair or Sta-Rite pool heater, and get it firing again fast! The burners on this type of MasterTemp/Max-e-Therm heater are quite unique from previous generation pool heaters.

What makes a Pentair pool heater heat up?

The air space above the burners heats up, which heats the copper finned tubes laying on the top of the combustion box. The water circulating through the copper heat exchanger tubes absorbs the heat, and exits the heater a few degrees warmer than when it entered.

What does temperature sensor mean on pool heater?

What it means: temperature sensor detecting water above 107 degrees Measure water temperature with a thermometer to rule out a faulty temperature sensor Hire professional pool heat pump repair tech to inspect control board, thermistor, and unit What it means: the unit’s low-pressure switch senses that water flow is open or low

What does low pressure switch on pool heater mean?

Hire professional pool heat pump repair tech to inspect control board, thermistor, and unit What it means: the unit’s low-pressure switch senses that water flow is open or low