Suntouch Controller and Heater Not Communicating

Sep 7, 2021
9
Glendora, CA
Pool Size
18000
Surface
Plaster
Chlorine
Liquid Chlorine
We just purchased a home in Las Vegas. It came with a 20k in ground pool with spa. It has a Pentair Suntouch controller, Pentair intelliflo VS pump, whisperflo pump for spa jets, ccp 420 filter, mastertemp 400 heater, and blower.

We just had the pool and spa replastered and the water chemistry is semi stable (ph still regularly high). It looks like a previous owner disconnected most of the pool equipment. The Suntouch controller still works. Im thinking of keeping it until it fails.

I’m having trouble controlling the heater via the Suntouch. I can turn on the heater manually in spa mode but can’t get it to turn on automatically (when valves and jets are activated) when I activate the spa. Any assistance would be appreciated. Thank you.
 
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