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Billy, Technician
Category: Pool and Spa
Satisfied Customers: 22627
Experience:  Licensed in Hydronics and Boilers
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Sn code on my thermospa concord. Drained it. I forgot to

Customer Question

Sn code on my thermospa concord. Drained it. I forgot to evac the pump, froze the lines, but I put a portable heater under to defrost. I hit the pump this morning and water shot out of the jets for a second, then it shut down with an SN code. Any ideas?
Submitted: 1 year ago.
Category: Pool and Spa
Expert:  Billy replied 1 year ago.


are you sure the water can move freely through the system or is there a frozen part? It sounds as though the heater is overheating due to minimal water in the heater chamber