Runaway trim?

aerialjc · 02-07-2010, 08:38 PM

I messed up and left one of my batteries on the other day. When I came out to the boat I switched the battery off and switched to the number 1 battery. When I switched the battery on, the trim motor kicked in. It runs until I hold the UP button. The down button does nothing. Did the switch or motor short out when the battery was on? My boat is now unusable because of this. I can't even turn the battery on!

Any inputs??

sosmarine · 02-07-2010, 09:05 PM

Either a switch or a relay. Easy to troubleshoot. Disconnect the switch on the cowling. If it still runs, disconnect the switch on the controller. If it still runs bad relay or slight chance of a shorted wire. Bring it by the shop and I'll take a look at it.

Breeze Fabricators · 02-07-2010, 09:48 PM

Must be a Merc!!!

sosmarine · 02-07-2010, 11:12 PM

Actually I think it's a Johnson. I have changed more OMC Controller switches than any other.

02-07-2010, 08:38 PM	#1
aerialjc Senior Member Trigger Join Date: May 2009 Location: Gulf Breeze,FL Posts: 300	Runaway trim? I messed up and left one of my batteries on the other day. When I came out to the boat I switched the battery off and switched to the number 1 battery. When I switched the battery on, the trim motor kicked in. It runs until I hold the UP button. The down button does nothing. Did the switch or motor short out when the battery was on? My boat is now unusable because of this. I can't even turn the battery on! Any inputs??

02-07-2010, 09:05 PM	#2
sosmarine Senior Member Sailfish Join Date: Sep 2007 Location: Navarre/Town Center Posts: 1,826	RE: Runaway trim? Either a switch or a relay. Easy to troubleshoot. Disconnect the switch on the cowling. If it still runs, disconnect the switch on the controller. If it still runs bad relay or slight chance of a shorted wire. Bring it by the shop and I'll take a look at it.

02-07-2010, 09:48 PM	#3
Breeze Fabricators Senior Member Grouper Join Date: Oct 2007 Location: Gulf Breeze Florida, onthe canal!! Posts: 1,157	RE: Runaway trim? Must be a Merc!!! __________________ Tim Scallan Breeze Fabricators Inc. 2932 Westfield Road Gulf Breeze Fl. 32563 850 554 6172/934 8609 BreezeFabricators.com

02-07-2010, 11:12 PM	#4
sosmarine Senior Member Sailfish Join Date: Sep 2007 Location: Navarre/Town Center Posts: 1,826	RE: Runaway trim? Actually I think it's a Johnson. I have changed more OMC Controller switches than any other.

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