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Heating  Heating

Brand

AO Smith AO Smith List all brands

Type:

ATI-110C-N view ATI-110C-N List all types

Error code:

661
List all errors


Error code: 661

Cause of error code 661

Bypass valve fault

Solution for error code 661

• Inspect the bypass valve (Part #403), for connection/ breakage of wires, locked motor drive due to scale buildup, and/or water leakage


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