Mariner Mercury Outboard Alarm Fix Overheating Youtube Looking for help in solving my overheat alarm. if i run her for 10 min, it starts to buzz i've tested the water coming out of the pisser and its never g. Jun 29, 2011. #3. re: 1997 mercury mariner 40hp 2 stroke over heat alarm. alarm beep twice when key was turned on, silence, then about 3 5 seconds later constant beep, motor not running, continues to beep constant (non pulsing) with motor on. i turned motor off and check continuity of temp sensor which from what i read is normally open, sensor.
Q A Troubleshooting Mercury Mariner 40 Hp Elo Outboard Alarm And I have made a video of a common overheating problem with mercury and mariner outboards. it's not an easy job and will take some hours to complete if you need. New member. ‘99 mercury 40 hp 2 stroke overheat alarm sounds after 5 mins of running. has yet to sound when in gear wot. typically sounds only in idle after warmed up. telltale has water coming out. i have replaced impeller (including housing gaskets), tested and confirmed thermostat opens. removed thermostat and ran, alarm sounded same as usual. Re: mercury 40 hp alarm hello<br > a steady tone indicates an overheat. could be an actual overheat, could be a bad overheat switch and it could still be a failed alarm module.<br > its now time for some careful troobleshooting. you will need a thermomelt stick or a temp gum. first you have to recreate the alarm condition. while the alarm is sounding check the temp of the block and exhaust. It is often possible to run idle through a faulty cooling system without damaging the engine. but always be careful. do not ignore the overheating warning. cost of fixing mercury outboard overheat alarm. in case of primary problems, you can fix your mercury outboard overheating alarm without any cost through diy.
Mercury Outboard Warning Horn Troubleshooting Overheat Alarm Siren Re: mercury 40 hp alarm hello<br > a steady tone indicates an overheat. could be an actual overheat, could be a bad overheat switch and it could still be a failed alarm module.<br > its now time for some careful troobleshooting. you will need a thermomelt stick or a temp gum. first you have to recreate the alarm condition. while the alarm is sounding check the temp of the block and exhaust. It is often possible to run idle through a faulty cooling system without damaging the engine. but always be careful. do not ignore the overheating warning. cost of fixing mercury outboard overheat alarm. in case of primary problems, you can fix your mercury outboard overheating alarm without any cost through diy. I have 1998 90hp mercury outboard that is sounding the overheat alarm at full throttle than after i back off the throttle a few seconds later it goes off and than back on when under load again never goes off at idle can drive the boat 20 minutes at 5 miles and hour and no alarm only under load. i have changed the water pump, thermostat and pop. Messages. 1,055. jul 2, 2009. #22. re: mercury outboard overheating. i leave the dock and have to cruise along for awhile at under 6mph in a no wake zone. the water pressure is about 3.5 psi. if i throttle up to about 7 or 8 mph the overheat alarm sounds. a big part of troubleshooting with a water pressure gauge is to monitor the changes in psi.
Mercury Outboard 3 Beeps Troubleshooting Overheat Alarm Justanswer I have 1998 90hp mercury outboard that is sounding the overheat alarm at full throttle than after i back off the throttle a few seconds later it goes off and than back on when under load again never goes off at idle can drive the boat 20 minutes at 5 miles and hour and no alarm only under load. i have changed the water pump, thermostat and pop. Messages. 1,055. jul 2, 2009. #22. re: mercury outboard overheating. i leave the dock and have to cruise along for awhile at under 6mph in a no wake zone. the water pressure is about 3.5 psi. if i throttle up to about 7 or 8 mph the overheat alarm sounds. a big part of troubleshooting with a water pressure gauge is to monitor the changes in psi.
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