I have an atmospheric above-ground pool heater. Heater is 2 years old, this is our 3rd summer using it. Water is not heating. Display says "rollout switch open". Manual says this is displayed while their is a demand for heat. I am wondering if anyone else has encountered this issue, and what needed to be done to return heat to the pool. I have turned off heater, unplugged, plugged back in and turned heater back in. Heater appears to be in working order, just not producing heated water. Any suggestions?
Sent from my iPhone using Tapatalk