Crown RC5500:
No power up

First time posting. I got a rc5500 with no start up. Display turns on and immediately shows wrench light. Battery meter displays but no code is displayed nor does it give me access to service. Push arrows any direction gives me nothing on display so I have no code to work with. Unit has info link which I bypassed. I've checked all fuaes and swapped relays at distribution board. I have also swap the display module getting same issues. I'm leaning towards a software issue but don't have a laptop with firmware so wanted to get any advice before I gotta place a service call. Thanks for any help.
  • Posted 7 Apr 2015 04:25
  • Discussion started by jaime_v
  • Ca
Showing items 1 - 6 of 6 results.
Began checking all plug connections to access modules happened to have access 7 unplugged when I rekeyed the machine nothing happened then I noticed a rekey on access One display shut Lift-Off plugged-in access 7 everything appears as it should full display then I was able to read codes for a faulty brake switch would not calibrate replaced switch recalibrated it also a communication fault codes but I believe these were probably in the plugs anyway lift is back in service thank you very much
  • Posted 17 Nov 2021 05:32
  • Reply by Glen_Martin
  • Ohio, United States
Glen Martin
I would check all the connectors going to all of the access modules. Also, see if you have a module with no power indicator light on. It looks like a module is either bad or not registering due to power issue. I've seen this before.
  • Posted 16 Nov 2021 18:12
  • Reply by 1CrownTech
  • Washington, United States
1crowntechnician@gmail.com
RC 55 45-40 no start-up get battery indicator lights and a wrench have swapped out access one have swapped out complete distribution card and relays power to contactors the swap out anyway there is no display no functions to access menu I found this truck setting in our charger area with no work order but I believe it was operating fine have checked all fuses and have voltage to access one any information would be helpful thank you
  • Posted 16 Nov 2021 00:06
  • Reply by Glen_Martin
  • Ohio, United States
Glen Martin
Could you please give an exact detail of your issue? That original post is quite old. Was this truck running fine and all of a sudden started having this problem? The more details that you could provide the better. Thank you.
  • Posted 13 Nov 2021 11:10
  • Modified 13 Nov 2021 11:11 by poster
  • Reply by 1CrownTech
  • Washington, United States
1crowntechnician@gmail.com
I'm having the same issue with a crown 5500 how do you resolve your problem?
  • Posted 13 Nov 2021 03:16
  • Reply by Glen_Martin
  • Ohio, United States
Glen Martin
how did you "bypass" the info link [explain in more depth please], and did you have the problem before trying to 'bypass' infolink?
  • Posted 7 Apr 2015 20:07
  • Reply by edward_t
  • South Carolina, United States
"it's not rocket surgery"

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