What causes code 79-13 on a Genie?

TCON has not detected the DISCON on the communications bus..

Genie S-40 XC

Genie error code 79-13 — Display Controller (DISCON) — Not detected

Q: What does code 79-13 mean on a Genie lift?

Display Controller (DISCON) — Not detected. The Genie display shows code 79-13 with the message “Display Controller (DISCON) — Not detected”. It is a blocking fault or a safety-related code: do not use the machine until the cause has been found and removed. Effect on the machine: Controls from the ground will not operate.

Q: What should I do when a Genie shows code 79-13?

Solution: * Verify DISCON is operating by checking that the display on the front is operating properly. * If there is no display, try to power up the DISCON by setting the key switch to Ground, pull out the ground ESTOP and press the Ground Function Enable button. The display should start. * If there is still no display, check DISCON power on J10 pins 2 (+) and 1 (-). * If DISCON operates but fault persists, check the CAN bus wiring. Disconnect J10 and with a voltmeter set to resistance verify that the resistance between pins 3 and 4 on the harness connector are between 55 and 65 ohms. Check CAN wiring if resistance check fails. * Replace DISCON if required. Clearing the code and calibrations are carried out by service according to the manual for the machine's serial number.

Message on the display: Display Controller (DISCON) — Not detected

Code 79-13 occurs in machines: Genie S-40 XC.

blocking fault

The Genie display shows code 79-13 with the message “Display Controller (DISCON) — Not detected”. It is a blocking fault or a safety-related code: do not use the machine until the cause has been found and removed.

Effect on the machine: Controls from the ground will not operate.

Possible causes

TCON has not detected the DISCON on the communications bus.

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

* Verify DISCON is operating by checking that the display on the front is operating properly. * If there is no display, try to power up the DISCON by setting the key switch to Ground, pull out the ground ESTOP and press the Ground Function Enable button. The display should start. * If there is still no display, check DISCON power on J10 pins 2 (+) and 1 (-). * If DISCON operates but fault persists, check the CAN bus wiring. Disconnect J10 and with a voltmeter set to resistance verify that the resistance between pins 3 and 4 on the harness connector are between 55 and 65 ohms. Check CAN wiring if resistance check fails. * Replace DISCON if required.

Source: Genie Service and Repair Manual S-40 XC (Part No. 1322629, 1286829GT), 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 79-13 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.

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Genie error code 79-13 — Display Controller (DISCON) — Not detected

Possible causes

What you can do

Solution from the manual

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