The International Cessna^® 170 Association

Looking for opinions on diagnosing what is believed to be an electrical issue.

When placing the master switch to the off position, the current remains on for 10 - 30 seconds. After this it shuts down and all remains off. Would this be a switch problem or a contactor (master solenoid) problem?

It could be both , so disconnect the switch [battery isolated first] and connect up a multi meter and check continuity as the switch is being operated . If switch is okay then it's the contactor .nothing lasts forever .

Thanks. Will do and post results.