Crown SP3000:
Code 27

Have a code 27. Checked voltage to the red wire on connector PB1 (crown wire ca401-1). +24.7. Battery is a little low but still in range. Installed reman control card and same problem. What am I missing. Contactor do pickup and than drop out. Slight noise from the transistor before contactors drop out.
  • Posted 17 Jul 2020 04:01
  • Discussion started by Brad
  • South Dakota, United States
Showing items 1 - 3 of 3 results.
This is a good one. Battery is good, connections all are good. Good voltages to the card and to contactors. Contactors pick-up. Tried new card and same problem. Had replaced the transistor prior to this problem. Did have noise out of the transistor but no output to the motor. Replaced the transistor and problem gone. Installed old control card and still is working. Not sure why. Went through the panel one more time to make sure the was no wiring or connection problems. Unit is still working great. Not sure how this could give a code 27.
  • Posted 4 Aug 2020 02:12
  • Reply by Brad
  • South Dakota, United States
Code can pop up when control card supply voltage drops below 10v. Bad connection or connector at CA402-1. Battery could have bad cells or drops considerably under load. Poor forward or reverse switches?
  • Posted 31 Jul 2020 02:30
  • Reply by ForkLiftFred
  • New Hampshire, United States
Fix it
Whats the battery voltage when lifting?
  • Posted 24 Jul 2020 19:14
  • Reply by techno_nz
  • Canterbury, New Zealand

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