Two day-sails ago I noticed that my panel tachometer stopped working and that the panel voltmeter stayed at 12 volts when the engine was running; in the past it generally showed about 13.5 volts. When I checked the battery voltage both batteries were under 12 volts indicating that the electrical system is not charging. Also if memory serves, the tachometer is connected to an electrical component under the galley sink which converts the alternator’s electrical impulses into RPMs. If my information is correct, it may explain why battery charging and the tachometer are not working.
Question: Given the above can you provided trouble shooting steps and or technical resources to help trace where this problem is so that it can be corrected?
Question: Given the above can you provided trouble shooting steps and or technical resources to help trace where this problem is so that it can be corrected?