Windshield Washer Inop

[Jerry B.]

With a mud splattered windshield from passing truck I engaged the windshield wash switch and got nothing. Checked fluid level in reservoir and it’s full. Couldn’t find any fuse for washer motor on the electrical schematic assuming it has a motor. Any ideas of what might be the issue? Thanks and appreciate any help.

[PictureTheSouth]

Check the plumbing? Similar issue drove me crazy - and was as simple as the hose from reservoir to spray nozzles had come loose.
If not, have a partner stand by while cowl is open to listen while you activate washer. Can then confirm or deny if pump is working before going down other troubleshooting paths.

[rynosback]

It’s a simple system. Below is how I would check it out.
1. Check your fluid level
2. Make sure all of your lines are connected at the pump, any connection unions and at the squirter tips.
3. Test to make sure the pump is getting power and a ground.
A. If there is power at the pump, then replace the pump
4.if there is no power at the pump, check the fuse and relay. If those are good, you have a wiring problem or the wiper switch likely is bad.

Hope this helps

[MJC62]

Excellent suggestions on troubleshooting the pump.
But anyone with an RV NEEDS two diagnostic tools. 12 volt test light and a multimeter. Every bad fuse doesn’t necessarily physically look blown. Likewise how do you know if voltage is sufficient on the A/C outlets when checking for problems without a multimeter. Without these two tools any electrical troubleshooting is just guesswork.
I might add a test light and a multimeter can be had for somewhere around $60-$70. Compared to what we spend on these rigs that’s peanuts

[Jerry B.]

Thanks for all the great info and recommendations. It was the activation switch not making good contact when pressed. Everything good. Thanks again

[16ACE27]

Originally Posted by Jerry B.

Thanks for all the great info and recommendations. It was the activation switch not making good contact when pressed. Everything good. Thanks again

Well at least you had a real problem. When my washers didn't work one time it was because I had a brain fart and was activating the bright lights while pulling the stalk instead on pushing in on the stalk.

Too many vehicles to drive.