Hi5 controllermaintenanceHi5 Controller Maintenance Manual6. Troubleshooting6.1. Troubleshooting Solution6.1.7. E0033 AMP under-voltageerrorOn this page6.1.7. E0033 AMP under-voltageerror6.1.7. E0033 AMP under-voltageerror 6.1.7.1. Outline6.1.7.2. Causes and examine methods