Sir vfd display not showing anything only red light is blinking then what I do??

Thanks

indeed but they know what they are doing for real

@@KARMMAROC Obviously not. They have drawn up their own action plan that looks nice to lay people on video. But in fact, they make about 20 dangerous mistakes and worsen the condition of the breaker, omitting the THREE most important things that should have been done.

@@KARMMAROC found my detailed list of a year ago: It still misses a few points, e.g. Level 2 or L3 maintenance training is obviously not received. These guys shouldn't be working on this breaker at all! Clearly NOT according to good ABB standards and practices: 😢 Let me spell it out: Fault #1: Not using protective clothing (hard-nosed shoes, arc protection, gloves etc) Fault #2: Breaker has been racked-in with excessive force Fault #3: Disconnecting breaker with open door. 😡 This shall be done with closed door, since the door is supposed to contain any arcs. Fault #4: Servicing the breaker with spring charged. Shall ALWAYS be discharged before any service or installation. EVERY mounting instruction starts with: OPEN and DISCHARGED. Danger for hands! Especcialy when 8:40 they remove the cover of the charged spring & trip mechanisms!! This makes me 😡 as well. #5 WD-40 is NOT an approved cleaning agent. Instructions 1SDH000460R0002 chapter 8 mention using dry and clean cloth and only for EXCESSIVE deposits Henkel 273471 or equivalent. #5a Sand paper 😱! Who came up with that idea? #6 7:35 is there debris on the bottom of the arc chamber? No cleaning performed. All WD40 and copper residue increase the risk of arc flash. Fault #7 8:55 - 9:28 and 21:34 Excessive forces used again. 😢 Supposed to be only 3Nm on the coil assembly according to mounting instruction 1SDH000579R0001, and 9Nm on the motor acc to 1SDH000460R0605, read up. Mind you, just last week had to visit a client whose molded case breaker disfunctioned only due to excessive torque on a cover. #8 12:17 I'm quite sure WD-40 not allowed or suggested in there as well! Fault #9 Puts his fingers into the mechanism area while the spring is still charged!!! 😧😧 13:17 and onwards! My stomach turns. Fault #10 Re-greasing with springs charged, not using a brush (can't reach where you have to), the WD-40 removed grease between hinges and other bearing surfaces, since the springs are charged, the forces on these surfaces are active and no grease will replace the washed away... Result: You SEE grease, but the necessary functional mechanisms are NOT LUBRICATED 🥺😢 17:33 FINALLY he discharges the springs, only to test the charging immediately afterwards... Fault #11 Small, non-dangerous mistake: They didn't timely realise the UVR / YU should be removed to allow testing. 😅 Fault #12 20:47 The carbon paper test is OK, but do you see the contacts aren't clean even with WD-40 and cloth? All over the paper there are black marks. Cleaning not succesful? Fault #13 23:42 Put the breaker back in fixed part with the relay cover reversed. It might easily get damaged. Fault #14 23:54 Racking in with OPEN DOOR. This is the most common situation to achieve arc flash. Fault #15 Doesn't check auxiliairy wiring 0,7Nm tightness as per manual. Fault #16 24:13 Closes door and ends work with still a reversed relay cover, and is proud of it! 😅 Fault #17 Ends project without doing a trip test using the PR030/B, Ekip T&P, PR010/T or other trip test equipment. Without a trip test, you can't call the breaker "serviced". Fault #18 Ends project without performing functional tests acc. to 1SDH000460R0002 chapter 8.3.9. Fault #19 Don't see a sticker with service date & signature. Fault #20 Ends project without the motor recharging the breaker (probably aux voltage not switched back on). Falut #21 Video ends with 4 minutes of empty black. Well, that last comment: I'n not a video editor, how would I know`? I'm only a ABB Technical Support Specialist.