Laars LT heater

Cainel

0
Bronze Supporter
Oct 8, 2018
19
Plano, TX
Getting ready for the holiday weekend and had our pool heater on today. It got to the target temp (88°) and then stopped working soon thereafter. Went and checked the heater and The service light and the ES 1 lights are blinking. Can anyone tell me what that might be?
 
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