Trim Switch issue

[wolfpack03]

What do you guys think about this one?

I was tinkering around in the boat this weekend and came across an issue with my trim switch. I can trim the motor up with both the switch on the throttle and the switch on the outboard itself. Problem is that neither switch will trim the motor down. I left the motor trimmed up and went back into the house to grab some lunch. I came back out after about 45 minutes to manually lower the motor and found the motor trimmed all the way down with the trim motor still running.

Sound like a short in a relay? Bad solenoid?

Thanks for any help fellas.

[kchace]

What do you guys think about this one?

I was tinkering around in the boat this weekend and came across an issue with my trim switch. I can trim the motor up with both the switch on the throttle and the switch on the outboard itself. Problem is that neither switch will trim the motor down. I left the motor trimmed up and went back into the house to grab some lunch. I came back out after about 45 minutes to manually lower the motor and found the motor trimmed all the way down with the trim motor still running.

Sound like a short in a relay? Bad solenoid?

Thanks for any help fellas.

That setup is pretty simple. There are only 2 wires to the trim motor. It is connected to power one way to spin for up, and the other way to spin for down. There are 2 relays - one is for up, one is for down. Considering that at first it wouldn't go down at all and then it was stuck going down I'd check the switches and their wiring first. You may have a stuck/broken switch.

The relays are identical and just plug in, so you could swap them to see if the problem moves. If the problem does move, its the relay, if it doesn't, its likely in a switch or wiring.

Ken

[Sea Tow Ethan]

I had the same thing happen with a DF150 except that it kept running in the up direction. Turned out to be the switch on the cowl had failed. I replaced the switch for fairly short money.

[wolfpack03]

Thanks guys. Kind of what I was thinking.

[savage]

The same (similar) thing occurred to one of my DF200's about a year ago.

Had to go to the dealer for a new cowling switch, about $78

Interesting to note, when I wired it up, something went wrong with my "Commander" gauges, and the Engine Hours for that outboard reset to zero.

The Suzuki Service Manual shows test procedures for the relay and the PTT switch, where you check for resistance in the relay and continuity when the switch is activated. PM me if you need a scan of that procedure