Question about Jandy Ae2500t 115,000 Btu Heat Pump

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Fault shorted H2O sensor??

My Jandy pool heater digital screen is showing: Fault shorted H2O sensor. What should I be looking for?? Please help. Thanks, Luis.

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  • Jandy Master
  • 1,448 Answers

The sensor goesw into the header unscrews with two black wires

Posted on Sep 25, 2014


5 Suggested Answers


6ya staff

  • 2 Answers


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Posted on Jan 02, 2017



  • 78 Answers

SOURCE: jandy AE.TI AE3000T .263

The H20 sensor is the Pressure Switch. Locate the pressure switch, remove the two leads and jump them together. If the error code goes away, you need a new switch. If not, it could be a software, or other hardware issue.

Posted on Apr 22, 2010


  • 16 Answers

SOURCE: Jandy pool pump will not prime it is a Jandy plus HP model PHPM 2.0

make sure pool is full of water
check skimmer weir doors and make sure not stuck in up position
fill pump basket with water and try to prime

if that doesn't work

replace diffuser oring

Posted on Jan 16, 2010

  • 163 Answers

SOURCE: Jandy Lite2 Pool heater will not stay lit after firing.

Look at the sensor that tells unit that everything is lit. There should be some sort of sensor that tells the ECU that the ingnition area is a burn temp. It sounds like the unit can't tell that flame is lit. Hope this helps.

Posted on May 17, 2009



  • 78 Answers

SOURCE: digital read out....fault high ref pressure.

Verify circulating pump is on and that there are no water flow restrictions to the heat pump. Make sure all necessary valves are open or in the proper positions to allow proper water flow to the heat pump. Verify filter and skimmers are clean. Check for water level in the pool. This condition may also appear if the heat pump has not been operated for an extended period. To clear the condition, cycle the heat pump, on and off, up to 3 times. If this does not correct the problem, call for service.

Posted on Apr 22, 2010

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1 Answer

LRZ pool heater. Where can I get instructions for replacing H2O sensor?

on right side of header where the pipes go in there is a black plastic nut with a black wire turn off system and valves remove after removing wires from board and revese to instell

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shorted temp sensor replace

Jun 22, 2014 | Jandy Ae2500t 115,000 Btu Heat Pump

1 Answer

I have an Air Energy II pool heat pump. There is a message displaying on the unit "H2O Sensor Malfunction". How do I fix this?

I suggest you call the Jandy technical support line at 800-822-7933. They may be able to help with your issue. I hope this helps.

Please vote on this answer. Thank you.

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Shortd H2O sensor, Fault

replace temp sensor on heater should be by plumbing inlet

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