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Trying to figure out why my Motorguide Great 82# 24volt

Customer Question
Trying to figure out...

Trying to figure out why my Motorguide Great White 82# ***** trolling motor just stopped working today.

Mechanic's Assistant: Thanks. Can you give me any more details about your issue?

I have good power to the front of the boat. But, the digital foot control doesn't seem to be getting power or isn't controlling the unit. I can't put it into stow or constant on. And the digital steering isn't working either now. It was working for about an hour this morning I ran it aground and it ran a little longer then went intermittent and finally nothing.

Submitted: 2 years ago.Category: Boat
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Answered in 3 minutes by:
2/28/2016
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago
Charles
Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 4,363
Experience: US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.
Verified

Hello, this is Charles. Thank you for requesting me today.

What year is your trolling motor?

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Customer reply replied 2 years ago
2006
Customer reply replied 2 years ago
Hello, Charles are you still there?
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

Thanks,

How are you testing the power to the bow of the boat?

Are you near the motor now?

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Customer reply replied 2 years ago
No it is outside.
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

Do you have a multimeter?

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Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

Ok can you remove the plug connector on the boat, then use the meter to make sure that you are getting at least 24V to the bow.

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Customer reply replied 2 years ago
Can you call me? I don't have the pin put for the plug and don't want to cross connect wires!
Customer reply replied 2 years ago
Hold on. I understand. I will check the trolling motor plug for 24 volts and get back to you.
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

I tried to accept your phone call offer. It would not go through.

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Customer reply replied 2 years ago
Thanks. Have you ever heard of the Troll Bridge?
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

On your motor?

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Customer reply replied 2 years ago
It goes between the batteries to make either 24 volts or 12 volts in series.
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

Ok, like a 12/24V switch.

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Customer reply replied 2 years ago
I have 24.61 v to the bow.
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

Great. Now you will need to remove the plate from the bottom of the foot control. Then test for power on the large red and black wires there. This is with the motor plugged into the boat.

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Customer reply replied 2 years ago
I have you in chat on my phone
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

I dont understand

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Customer reply replied 2 years ago
I'm out by the boat
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

ok great. Can you test the foot pedal voltage?

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Customer reply replied 2 years ago
I have good voltage to the motor. What next?
Customer reply replied 2 years ago
Which pin locations?
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

On the bottom of the foot pedal?

The black is on a junction block, the red goes to the control board.

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Customer reply replied 2 years ago
Mine has a six pin connection nothing on the bottom
Customer reply replied 2 years ago
Are you talking inside the foot pedal?
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

Yes in the foot pedal, you will need to remove the metal plate from the bottom of it.

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Customer reply replied 2 years ago
Mine is all plastic
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

Can you remove it? The diagram shows it will simply unscrew. With 4 screws

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Customer reply replied 2 years ago
I just removed 6 screws to open the unit.
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

8 screws actually

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Customer reply replied 2 years ago
Color of wires : yellow, orange blue, green, gray, and white.
Customer reply replied 2 years ago
No, you should find it under gb82.
Customer reply replied 2 years ago
Model GW82EX
Customer reply replied 2 years ago
foot pedal assembly (M0099101)
Customer reply replied 2 years ago
Hello
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

I have it open here.

With the loss of steering and speed, this failure your either be in the foot, or the main control board on the motor/

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Customer reply replied 2 years ago
where does that leave me?
Customer reply replied 2 years ago
I guess I have to go see a MG service center?
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

Unfortunate it does need to go in. The issue being that the parts are very costly for this motor and a bunch of them are NLA. If your est. is too much, you make with to look at the Xi5. It is a much better motor than the Great White.

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Customer reply replied 2 years ago
Thanks, but if I have to get a new one it will be the I pilot thru Minnesota Kota
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

Very Good choose as well.

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Customer reply replied 2 years ago
Have a good day.
Marine Mechanic: Charles, Marine Mechanic replied 2 years ago

You too Sir. Wish I could have helped more.

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Charles
Charles
Charles, Marine Mechanic
Category: Boat
Satisfied Customers: 4,363
4,363 Satisfied Customers
Experience: US Navy (Ret) Certified Mercury Marine Tech with over a decade of repair experience.

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