Fault high limit error throwing immediately when engaging heater. Does not try to ignite at all.
Handy pro series jxl400 fault high limit error
- Thread starter DM4040
- Start date
- Jul 21, 2013
- 65,118
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Jandy JXI Heaters - Further Reading
www.troublefreepool.com
The JXI heaters have two high limit sensors, 135F and 150F, on the bottom rear of one side of the header assembly and the other on the upper front of the other side of the header assembly.
The sensors are simple switches that should be closed when the heater is off. Test the sensor using a multimeter; if it tests open, then it needs replacement.
The sensors come in a kit as a set of two. If one fails, the manual says to replace both. The 150F has the smaller threads and will only fit that port.
