Mercury Outboard Alarm. Mercury Outboard Alarm Wiring Diagram Circuit Diagram A Mercury SmartCraft System instrument package can be purchased for this outboard Below I give some advice on the operation of the Mercury outboard engine WARNING HORN or AURAL ALERT SOUNDER as used on many Mercury outboard engines, particularly c.2000 and older two-stroke-power-cycle models
there is no way to interpret the cause of the alarm on a Mercury outboard other than by the cadence. A Mercury Outboard Alarm is a safety feature that alerts the boat operator to potential issues with the outboard motor
The circuit is shown in a pictorial wiring diagram below. Causes for grounding are oil level as you disconnected, over temp from the over temp sensor on the rear of the block water jacket cover (spark plugs stick through this cover), or short in the wiring from the horn (located at the operator's station) back through the wiring harness. To reset the alarm on a Mercury outboard engine, first locate the test/reset button on the control panel
Mercury Outboard Warning Horn Troubleshooting Overheat Alarm & Siren. Causes for grounding are oil level as you disconnected, over temp from the over temp sensor on the rear of the block water jacket cover (spark plugs stick through this cover), or short in the wiring from the horn (located at the operator's station) back through the wiring harness. Recently, the continous tone or horn starting blaring [when the motor is running at about] 1,200-RPM, after returning back from about 45 minutes of higher speed running, 4,000-RPM.
3 Common Reasons Mercury Outboard Alarm Stays On Boats N Trails. A Mercury outboard alarm wiring diagram is a diagram that shows the electrical connections and components of the alarm system in a Mercury outboard motor continuous tone = either temp sensor or a short in the system, which could be in the wiring, the ot sensor, or the oil module