Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-24-2021, 03:25 PM   #1
Guru
 
City: Warwick RI
Vessel Name: Lollygag
Vessel Model: 34 Mainship Pilot Hardtop
Join Date: Aug 2016
Posts: 696
Wiring question

Replacing a wiper motor and have a yellow, orange and blue wires

The wiper motor has red, blue and black connections. Thoughts on which wire goes to which connection?
Lollygag1 is offline   Reply With Quote
Old 09-24-2021, 08:30 PM   #2
Guru
 
High Wire's Avatar
 
City: Cape May, NJ and Englewood, FL
Vessel Name: Irish Lady
Vessel Model: Monk 36
Join Date: Dec 2007
Posts: 4,177
Can you post a couple pictures?
__________________
Archie
Irish Lady
1984 Monk 36 Hull #46
Currently in Cape May NJ
High Wire is offline   Reply With Quote
Old 09-24-2021, 10:45 PM   #3
Guru
 
tiltrider1's Avatar
 
City: Seattle
Vessel Name: AZZURRA
Vessel Model: Ocean Alexander 54
Join Date: Aug 2017
Posts: 2,792
A multi meter will tell you what the yellow, orange and blue wire does. The installation manual for the motor should tell you what the red, blue and black connections are for.

Is this a two speed setup or is this a self parking set up?
tiltrider1 is online now   Reply With Quote
Old 09-25-2021, 07:21 AM   #4
Guru
 
wkearney99's Avatar
 
City: Bethesda, MD
Vessel Name: Solstice
Vessel Model: Grand Banks 47 Eastbay FB
Join Date: Feb 2018
Posts: 1,632
Any time questions are asked it helps to have make and model of any involved components, in this case the wiper motor AND how it's being controlled. This because someone else might that that hardware, even from a different boat, and have some insights to offer.
__________________
-- Bill Kearney
2005 Eastbay 47 FB - Solstice
wkearney99 is offline   Reply With Quote
Old 09-25-2021, 07:57 AM   #5
Member
 
GingerMd's Avatar
 
City: Columbia
Vessel Name: Ginger
Vessel Model: Camano 31
Join Date: Sep 2021
Posts: 16
Here is a typical schematic…
Attached Thumbnails
F91A81B8-7239-4A8D-BB05-5D21E45E12F4.jpg  
GingerMd is offline   Reply With Quote
Old 09-25-2021, 08:01 AM   #6
Member
 
GingerMd's Avatar
 
City: Columbia
Vessel Name: Ginger
Vessel Model: Camano 31
Join Date: Sep 2021
Posts: 16
I’d also say determine the GND first. Use the DMM in ohms/continuity mode to check which wire is connected to motor chassis. After that it should be easy !
GingerMd is offline   Reply With Quote
Old 09-25-2021, 08:40 AM   #7
TF Site Team
 
City: Westerly, RI
Vessel Name: N/A
Vessel Model: 1999 Mainship 350 Trawler
Join Date: Jan 2014
Posts: 3,154
In DC (At least many modern 12v) yellow is usually Hot and Blue is Grnd. Some devices still use the older Red=hot, Blk = Grnd.

I'd assume:
(motor)Red -> Yellow(boat)
(motor)Black -> Blue(boat)
(motor)blue -> Orange (boat)

However this is simply deductive reasoning. I'm not an electrician.
Shrew is offline   Reply With Quote
Old 09-25-2021, 08:51 AM   #8
Guru
 
City: Rochester, NY
Vessel Name: Hour Glass
Vessel Model: Chris Craft Catalina 381
Join Date: Aug 2019
Posts: 3,940
Quote:
Originally Posted by Shrew View Post
In DC (At least many modern 12v) yellow is usually Hot and Blue is Grnd. Some devices still use the older Red=hot, Blk = Grnd.

I'd assume:
(motor)Red -> Yellow(boat)
(motor)Black -> Blue(boat)
(motor)blue -> Orange (boat)

However this is simply deductive reasoning. I'm not an electrician.

Yellow shouldn't ever be hot. Current ABYC recommendation for DC is red hot, yellow ground (to avoid DC ground being confused with a black AC hot). And then there's stupid stuff, like most of the factory wiring on my boat that uses black = hot, white = ground for DC to match the AC colors.
rslifkin is offline   Reply With Quote
Old 09-25-2021, 09:09 AM   #9
Guru
 
City: US PNW
Join Date: Nov 2018
Posts: 943
Shrew: I'm curious about your Yellow/positive and Blue/negative. Is that somewhere other than the US?

************

Quote:
Originally Posted by rslifkin View Post
Yellow shouldn't ever be hot. Current ABYC recommendation for DC is red hot, yellow ground (to avoid DC ground being confused with a black AC hot).
The way I know it agrees with rslifkin. To elaborate:

In DC distribution wiring, it was typically:

Red = Positive and Black = Negative.

However with more and more AC wiring on boats, and with their black being positive, it has changed to avoid dangerous confusion. So the modern way for DC is:

Red = Positive and Yellow = Negative.

Most boats will still have quite a bit of Black = Negative in the DC system, but newer wires may/should be yellow.

Of course with some items you add to the boat, they seemingly choose colors at random But the manual for the item should (hopefully) specify.
Frosty is offline   Reply With Quote
Old 09-25-2021, 10:00 AM   #10
Guru
 
dhays's Avatar
 
City: Gig Harbor
Vessel Name: Kinship
Vessel Model: North Pacific 43
Join Date: May 2015
Posts: 8,980
The correct answer was given above. Use a multi-meter and see what your existing wiring is, and then match it with your new motor.
__________________
Regards,

Dave
SPOT page
dhays is offline   Reply With Quote
Old 09-25-2021, 10:03 AM   #11
Guru
 
Brooksie's Avatar
 
City: Cape Cod, MA
Vessel Name: Island Seeker
Vessel Model: Willard 36 Sedan
Join Date: Oct 2007
Posts: 1,210
There are at least two different schemes on wiper wiring.
In one the park circuit is always hot and may have it's own fuse to protect that wire.
In the other the park function works off the same lead that powers the wiper & is hot only when the wiper switch is turned to "off".
You can't replace one type with the other w/o some rewiring of your boat's system, maybe requiring use of a proprietary switch and you can't mix the two types on the same switch.
There may be hybrid schemes as well.

Vetus motors, for one, use the second system and most others system one.
You don't normally find out which type park system you bought until you look at the wiring diagram that comes with the motor...
Brooksie is offline   Reply With Quote
Old 09-25-2021, 10:25 AM   #12
TF Site Team
 
koliver's Avatar
 
City: Saltspring Island
Vessel Name: Retreat
Vessel Model: C&L 44
Join Date: Nov 2007
Posts: 4,389
Quote:
Originally Posted by rslifkin View Post
Yellow shouldn't ever be hot. Current ABYC recommendation for DC is red hot, yellow ground (to avoid DC ground being confused with a black AC hot). And then there's stupid stuff, like most of the factory wiring on my boat that uses black = hot, white = ground for DC to match the AC colors.
And then there are changes over the years.
The very old stuff on my boat used the protocol in place in 1980.
The newer stuff used whatever was in place at the time, and now there is yellow in the latest protocol.
I have some where red is hot, white is ground.
Some where black is hot, white is ground.
Some wiring has red tape on black wiring, to show that wire is hot.
My newest is my 2019 Solar installation, red is hot, black is ground.
Finding out what connects to what is sometimes interesting.
__________________
Keith
koliver is online now   Reply With Quote
Old 09-25-2021, 11:01 AM   #13
Guru
 
Soo-Valley's Avatar
 
City: Gulf Islands, BC Canada
Vessel Name: Soo Valley
Vessel Model: Grand Banks 36
Join Date: Jul 2019
Posts: 1,865
3 supply wires, if the control switch is two position, one is high speed, one is low speed and the third is ground.
OR
one is switched hot, one is always hot for park, one is negative.
More info needed.
__________________
SteveK AKA Soo Valley
You only need one working engine. That is why I have two.
Soo-Valley is online now   Reply With Quote
Old 09-25-2021, 11:06 AM   #14
Senior Member
 
City: Anacortes
Join Date: Mar 2016
Posts: 390
Yellow is often negative in 12vdc. Isn't this a ABYC thing? red (+) yellow (-)

Quote:
Originally Posted by Shrew View Post
In DC (At least many modern 12v) yellow is usually Hot and Blue is Grnd. Some devices still use the older Red=hot, Blk = Grnd.

I'd assume:
(motor)Red -> Yellow(boat)
(motor)Black -> Blue(boat)
(motor)blue -> Orange (boat)

However this is simply deductive reasoning. I'm not an electrician.
sean9c is online now   Reply With Quote
Old 10-02-2021, 09:09 PM   #15
Guru
 
C lectric's Avatar
 
City: Gibsons, B.C., Canada
Vessel Name: Island Pride
Vessel Model: Palmer 32'
Join Date: Oct 2007
Posts: 3,555
Quote:
Originally Posted by Lollygag1 View Post
Replacing a wiper motor and have a yellow, orange and blue wires

The wiper motor has red, blue and black connections. Thoughts on which wire goes to which connection?


You need to download the wiring diagram from the wiper motor mfgr.
I just went through this. I have two different types, mfgrs., of wiper motors and guess what, they each use a different colour scheme. On both though the motor case is the ground but with the way these things are done I would not even count on that.

And I agree that for a question like this you need to say specifically what you have, mfgr., and model.
C lectric is online now   Reply With Quote
Old 10-08-2021, 05:02 PM   #16
Veteran Member
 
crashley's Avatar
 
City: hazelwood north
Vessel Name: GULL
Vessel Model: WW2 Work boat
Join Date: May 2014
Posts: 40
Wiper

Most self parking wipers have a continuous positive supply and the switch controls the negative
This enables the self parking function to work by supplying another negative until the wiper is parked
crashley is offline   Reply With Quote
Old 10-08-2021, 07:04 PM   #17
Guru
 
C lectric's Avatar
 
City: Gibsons, B.C., Canada
Vessel Name: Island Pride
Vessel Model: Palmer 32'
Join Date: Oct 2007
Posts: 3,555
I forgot and wasn't using my noodle.
I just went through this nonsense a couple months ago.

Prepare a wee chart of the wires and the colours.

Find the ground wire first. Often attached to the exterior at the end of the motor itself OR the bracket that secures the motor free end. Double check with your multimeter. Should show almost no resistance.

Then apply 12V to any wire and note what it does.
---One will be for the fast speed.
---One will be for the slow speed.
A visual comparison will tell you which is which. If you have the two speed wires the shaft will turn continuously.

--- one will be for the parking function. The third wire should be the parking lead. Once you figure out the speeds then confirm by simply energizing the last lead. If already parked it may not move. Double check by energizing either of the two speed leads to just get the shaft to move a few degrees. THen energize the third wire again and watch. If it moves and then stops you have confirmed the park wire.

Label them and keep the little chart.
C lectric is online now   Reply With Quote
Old 10-09-2021, 06:07 AM   #18
TF Site Team
 
Bacchus's Avatar
 
City: Seneca Lake NY
Vessel Name: Bacchus
Vessel Model: MS 34 HT Trawler
Join Date: Nov 2014
Posts: 5,520
C lectric
Now thats using your head.
Logical problem solving!
__________________
Don
2008 MS 34 HT Trawler
"Bacchus"
Bacchus is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 08:01 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012