Sub-Zero Classic Series (BI) Relay Faults | Water Systems | Closed | Error 15 U 01
- Error code 15 U 01
- Classic Series (BI) shows 15 U 01
- 15 U 01
- Water system relay closed
- Water valve relay stuck closed
- Turn the home circuit breaker to the unit off for 30 seconds then back on again.
- Retest the unit operation.
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