Your Handy Technical Adviser
Most every owner’s manual has a troubleshooting section that catalogs the most common equipment failures and what you can do to solve them. These tips are explained in a nontechnical manner and can prove to be very helpful in solving the most likely failures based on the manufacturer’s experience. You don’t have an owner’s manual on board? You can normally download a free copy of both current and older discontinued models from the manufacturer’s website.
When all else fails and the GPS, chart plotter or other microprocessor-based equipment goes, the last thing you can do is perform a “clear,” “restore” or “master” reset. This often cures misbehaving microprocessors, but will clear all your routes and waypoints.
Pull the Plug
As with a faulty computer, you can often get a misbehaving unit back on its feet by turning the set off and on. Sometimes you need to remove the power cord or switch off a circuit breaker and wait about 30 seconds before applying power again.