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pentair mastertemp 125 error codes

There are a few different error codes that can occur on a Pentair mastertemp 125 heater. The first, R14, is not a true error code. Instead, it is the heater’s revision mode, which is designed to check the heating system and its settings. Once it has completed the process, it enters lockout and may display another error code. Some of the symptoms of this error code include the service heater light turning on and the heater shutting down.

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AD0 is related to the stack flue sensor

Error code AD0 can be caused by one of several things. First of all, if your Pentair heater is emitting too much heat, the stack flue sensor may be malfunctioning. This can cause the unit to shut off. If this happens, it’s best to contact a Pentair service technician. In addition, the problem can also be caused by a faulty pressure switch or thermal regulator.

The reason why this error code occurs is because the temperature of the exhaust is too high. The heater will shut down when this temperature is reached. Most of the time, this is caused by improper gas flow. Broken gas valves can also cause this error code.

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ERR PS is related to the water pressure switch

If you’re experiencing a failure of the Pentair MasterTemp 125 pool heater, there’s a good chance that the water pressure switch has become clogged. If this is the case, you can either replace the switch or adjust the water flow line.

Another possible cause for this error code is a low gas flow rate or a broken pressure switch. In either case, you’ll need to contact a service technician. In some cases, the error can be caused by a faulty thermal regulator or fuel supply.