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About avlcat

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  1. Well, my 6-years old Sta-Rite heater failed today. When I start the system the heater display says Ad0; then if I press Spa On or Pool On button it says 5f1; then 180 and 'r 9'; then finally goes blank. The heater motor or fan does not try to start at all. The water flow and gas pressure are fine. No Service Heater lite (or any other outside lights) are on. I am looking for help here. Anybody can tell me what these codes could mean? Unfortunately the owner manual does not explain codes and I cannot get hold of service manual. Also do you know if service manual for Sta-Rite Max-E-Therm heat
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