FL1 is an open flow switch error. That means you have poor or no flow through heater (air locked,bad, clogged, or scaled circ. pump, clogged filter, ect) or a bad flow switch. I hope this helps =)
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FL1 is an open flow switch error. That means you have poor or no flow through heater (air locked,bad, clogged, or scaled circ. pump, clogged filter, ect) or a bad flow switch. I hope this helps =)