What Er 10 Means
Er 10 is a main relay failure, the relay on the control that switches power to the loads.
Common Causes of Er 10
- Main power relay on the control failed
🔧 One Safe Check You Can Try
Switch off the breaker and book service.
⚠ Why You Shouldn't Go Further Than That
- The relay is on the main control under the tub.
- Relay failures can leave loads powered unexpectedly.
Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.