Hayward heater turning on pool heater when iAquaLink setting is turned to spa heater

[Matsudafam]

I have a Hayward heater (not sure what model, but has 5-6 burners). The original setup linked to iAquaLink was done by the previous owner. Everything worked find controlling the system until I had to clean out a burner line due to a spider web in the first burner’s “pipe.”

Thereafter, whenever I turn on the pump system in iAquaLink (this works) and then turn on spa mode (this works), if I then try to turn on spa heater, the heater turns on but the display on the heater indicates pool heater mode. As a result, the spa only ever heats to the pool temp setting. (I have tried going into BO mode but then the heater never turns on thru iAquaLink controls.) In order to make the spa heat to the spa heater setting while the system is on, I must manually click the Hayward heater out of linked mode (linked mode = orange light on the power symbol; unlinked = no light) and instead put it in manual spa mode (red light on spa symbol). Before turning off the system in iAquaLink, I have to manually switch the heater back to linked mode. Otherwise the next time I turn on the system, the heater automatically turns on to spa heater mode (the last manual mode).

How do I reset the heater to correctly respond to iAquaLink heater selections (pool vs spa)?

Note: the pool heater setting in iAquaLink correctly turns on the pool heater.

 

[dfwnoob]

I'm not an expert on Hayward's heaters, but looking at the installation manual I think I see your issue. At this connection, yours is probably wired for the "pool":



By default, the pool is locked out to a maximum of 90 degrees in the Hayward heaters. This can be overriden:





You will need to override the lock-out and set it to 104 and then let the Aqualink call for heat when it needs it.

You will need to set the spa and pool target temps in iAqualink.

 

[1poolman1]

I have a Hayward heater (not sure what model, but has 5-6 burners). The original setup linked to iAquaLink was done by the previous owner. Everything worked find controlling the system until I had to clean out a burner line due to a spider web in the first burner’s “pipe.”

Thereafter, whenever I turn on the pump system in iAquaLink (this works) and then turn on spa mode (this works), if I then try to turn on spa heater, the heater turns on but the display on the heater indicates pool heater mode. As a result, the spa only ever heats to the pool temp setting. (I have tried going into BO mode but then the heater never turns on thru iAquaLink controls.) In order to make the spa heat to the spa heater setting while the system is on, I must manually click the Hayward heater out of linked mode (linked mode = orange light on the power symbol; unlinked = no light) and instead put it in manual spa mode (red light on spa symbol). Before turning off the system in iAquaLink, I have to manually switch the heater back to linked mode. Otherwise the next time I turn on the system, the heater automatically turns on to spa heater mode (the last manual mode).

How do I reset the heater to correctly respond to iAquaLink heater selections (pool vs spa)?

Note: the pool heater setting in iAquaLink correctly turns on the pool heater.

Just set the heater to 104. The mode on the heater is only indicating what temp setting you are using, it doesn't have a clue which body of water is being heated.
If the heater was stand alone, you would have two separate temp settings and choose what you are heating, pool or spa.
Setting the heater to 104 (its max setting) and setting a pool and spa temp in the Jandy it will heat properly. Ignore the heater light.

 

[Matsudafam]

I'm not an expert on Hayward's heaters, but looking at the installation manual I think I see your issue. At this connection, yours is probably wired for the "pool":

View attachment 518303

By default, the pool is locked out to a maximum of 90 degrees in the Hayward heaters. This can be overriden:

View attachment 518304

View attachment 518307

You will need to override the lock-out and set it to 104 and then let the Aqualink call for heat when it needs it.

You will need to set the spa and pool target temps in iAqualink.

Thanks, I’ll take a look at the wiring. Not sure how it could have been rewired but worth checking.

 

[Matsudafam]

Just set the heater to 104. The mode on the heater is only indicating what temp setting you are using, it doesn't have a clue which body of water is being heated.
If the heater was stand alone, you would have two separate temp settings and choose what you are heating, pool or spa.
Setting the heater to 104 (its max setting) and setting a pool and spa temp in the Jandy it will heat properly. Ignore the heater light.

That was one of the things I tried but I did it only in the app, not on the heater. I’ll use dfwnoob’s instructions for the override. Thanks both!

 

[1poolman1]

That was one of the things I tried but I did it only in the app, not on the heater. I’ll use dfwnoob’s instructions for the override. Thanks both!

Set the app to 104 and the heater to 80 and the heater will turn off at 80, regardless of what the Jandy says. The app will not overrided the heater setting. The Jandy simply completes the control circuit to allow the heater to light and breaks the circuit to turn it off.