Genie GR-20J and GR-26J (vertical mast lifts with jib)
Genie error code 02-20 — Controller logic board — Capacitor charge
Message on the display: Controller logic board — Capacitor charge
Code 02-20 occurs in machines: Genie GR-20J, GR-26J.
blocking fault
1) An external charge is in parallel with the capacitor and reduces the current of the recharge circuit, thereby preventing the capacitors from charging. 2) There is a problem with the charging circuit and the controller must be replaced.
Description from the Genie service manual, in the original wording.
Possible causes
The manual does not list the causes for this code: the service technician establishes them during diagnosis of the machine.
What you can do
Switch the machine off with the emergency stop and switch it on again. If the code comes back, do not use the machine and call service.
Solution from the manual
When the key is connected, the controller tries to charge the power capacitors via a resistor and checks whether the capacitors are charged. If they do not charge, an alarm is generated. The main driver is not closed.
Source: Genie Service and Repair Manual GR-20J / GR-26J (Part No. 227656, 1312899), Fault Codes section.
The descriptions are quoted from the manufacturer's service documentation and are for guidance only. Clearing codes, calibrations and repairs are carried out by a qualified service technician according to the manual for the specific serial number. A machine with an active blocking code must not be used until the cause has been removed.
Does code 02-20 not go away?
RK Rental services Genie lifts at our workshop or on site at the customer's premises (construction site, factory, warehouse). We read the code, remove the cause and select the parts by serial number.
Genie service · Genie parts · All Genie codes of this system