So I have a Jandy jx400n heater on my in ground pool/spa combo. It is 100 percent automated. My question is do I have to do anything special to heat the pool? I placed in pool mode and pool heat on and it said heating in the app but the heater never fired. I can place in spa mode and spa heat and everything works perfect. My son is having a birthday party tomorrow and we wanted to warm the pool a few degrees but I can't figure out how to do it. Do I need to push a button on the heater or something? Any help is greatly appreciated.
Jandy jx400n heater and i aqualink?
- Thread starter TEXASERIC
- Start date
If it’s working for spa mode it must be a setting issue. What kind of aqua link do you have? @PoolGate i hope you get this early because its 1-2 degrees/hr on average.
- Jun 7, 2017
- 9,299
- Pool Size
- 29000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
Did it ever work? I don't have a spa but if the signal isn't getting to the heater that's odd. Only time mine ever did this was when my ignitor went out. If yours works in spa mode and you have a spillover at least you can heat some of the water. What is the pool temp showing as? Usually there are 2 set points.
- Jun 7, 2017
- 9,299
- Pool Size
- 29000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
Make sure you set the valves properly so that the heater gets flow in pool mode perhaps the heater flow switch is not closing.
- Jun 7, 2017
- 9,299
- Pool Size
- 29000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
Do you also have the computer interface? Do you have a "web" button on the phone app? Show me the temp set screen. On mine it is the below but I do not have a spa so yours will be different.
- Jun 7, 2017
- 9,299
- Pool Size
- 29000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
And you have 2 temp probes? One for pool and one for the spa? What temp are they reading?
Also you can't see in the other pics but the heat light is illuminated on the panel outside and the app shows the pool heating active. I do have an auto valve that stay in a mid position to allow spa overflow but it is downstream of pump/heater so should not have a negative impact to total flow through the heater.
No just one
Only temp sensor is on pump discharge. It is same pump regardless of pool or spa mode
- Jun 7, 2017
- 9,299
- Pool Size
- 29000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
Just to be sure, the pool temp is below the set temp in pool mode, right? Hopefully someone comes along with a spa setup.
Correct, the pool temp dropped to 80 overnight. Thank you for all your help.
- Jun 7, 2017
- 9,299
- Pool Size
- 29000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
So I just hit the override on the pool/spa swap over valve and the heater fired. Only thing is, is the override sends everything to spaso my spa waterfall into pool is kicking lol. But I am taking suction from pool and going through Beater and back to pool via spa overflow so it will get me there
- May 3, 2014
- 59,256
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
I am not real familiar with Jandy equipment. I would assume you should be in Pool Mode and then turn on the Heat function.
If your heater is not turning on when you do that, go out to the heater and push the Pool button.
If your heater is not turning on when you do that, go out to the heater and push the Pool button.
The opposite direction is where it splits out the flow. Still seems strange it would have that much effect downstream of everything
- Jun 7, 2017
- 9,299
- Pool Size
- 29000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
Try hitting the button on the bottom of the JVA to manually take it out of spa mode. It is forward, neutral, reverse so pass neutral and switch to the reverse mode. Don't forget to change it back later.
- Jun 7, 2017
- 9,299
- Pool Size
- 29000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400