1. You're welcome. 2. No problem. 3. No worries. 4. Don't mention it. 5. My pleasure. 6. Anytime. 7. It was the least I could do. 8. Glad to help. 9. Sure! 10. Thank you. (use this when you ALSO have something to thank the other person for)
Before inspecting or servicing machine, power supply must be turned OFF. The servicer needs to wait for at least 3 minutes after turning the power OFF and needs to check for residual voltage with a voltage meter. The inverter capacitor or EMC filter remains charged with high voltage for some time after powering OFF. This is an imminently hazardous situation that, if not avoided, will cause severe personal injury or death.