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OnCue Plus Controller

The OnCue Plus is a generator-set controller. It is used on generator sets from Kohler, including the VSC.

3
Generator sets
Kohler
Brand

Generator sets using this controller

3
Kohler VSC

Also fitted to: Kohler RDC/DC, Kohler RDC2/DC2.

Troubleshooting

10

Symptoms & remedies

SymptomCauseRemedy
Cable or modem/router problemIsolate the problem by disconnecting the Ethernet cable from the generator controller and plugging it into a laptop PC; disable wireless on the laptop; check Internet access by trying to connect to www.KOHLERPower.com or any website; if no connection, try to connect the laptop PC to the modem/router using a different cable; if there is no connection with either cable, the problem may be with the modem/router—contact your Internet Server Provider for assistance
Firewall blocking accessOn the generator set side, configure the router firewall to open port 5253 to permit an outbound connection; contact your system administrator or Internet service provider for assistance, if necessary
Generator set serial number mismatchSee Section 3.2
Incorrect serial numbers prevent connection to the OnCue Plus serverGenset serial number programmed into the controller does not match the serial number on the generator set nameplateUse Kohler SiteTech software to change the genset serial number programmed in the controller to match the nameplate; contact a Kohler-authorized distributor/dealer for service
Internet service is downVerify that Internet service is available by navigating to www.KOHLERPower.com or any website
Long network cables may cause excessive signal lossNetwork cable is longer than 100 meters (328 ft.)Install a repeater or switch
No connection to the serverRDC2/DC2/VSC controller: test server connection using telnet (see Section 3.8.2); RDC/DC controller: check that the server connection indicating LED on the controller is lit (see Sections 3.3 and 3.8)
No power to controllerVerify power to the generator set controller by checking that the controller display is on or one LED is illuminated or flashing on the controller; check the connection to the generator set's engine starting battery; RDC/DC controller: check the condition of the controller's F3 fuse, and replace the fuse if necessary
OtherContact your Internet Server Provider for assistance
Password errorReset the password at the controller, if necessary, and enter the new password in OnCue Plus (see Section 2.5)

Fault codes and symptom→remedy steps extracted from this controller’s service/owner documentation; verify against the official manual before servicing. Aggregated from the service documentation of generator sets built on this controller.