When we bought the coach the driver side power mirrors did not work. The switch felt really worn out I assumed the switch was bad. I ordered a new one from ramco installed it problem solved. Not so fast the light in switch comes on so it must be getting power. But it still doesn't work . I figured there must be a fuse for it, but I can not figure out where. Not really sure how to figure it out.
On your model year coach more likely it is protected by a auto-reset circuit breaker (they CAN fail). Look on the big circuit breaker panel hidden behind the removable panel directly in front of the copilot seat.
Look on your 12V Wiring Diagram (B-2197 ? not sure of the number for U270) to ID the mirror breaker.
Or, the wiring going from the switch to the mirror could be damaged or broken.
Or, the motor in the mirror could be bad.
Good luck with your troubleshooting!
Thanks I will check the auto reset tomorrow and go from there.
Since light in mirror switch comes on, CB is probably fine. I doubt there is a separate CB for each mirror.
I'm betting on bad wiring to mirror or broken mirror motor. Just an armchair guess.
Upper and lower mirrors operate independently. Will either move?
No neither one will move. I took the panel off that the switches are mounted on and looked down in there followed the wire to where it goes out to the mirror arm wire didn't look damaged in any way. Then I took the mirror head off the arm. The wire looked ok there. I then looked between the glass and the mirror head to see if any wire looked loose or anything abnormal didn't see anything wrong. I do not know how to get glass out to get a good look at it, or check the motors. I think that is where I need to check for power as I operate the switch.
It is most likely a wiring fault. You can have a broken wire that does not look broken or a connector that is bad. You need to verify you have power at the switch and then at the motors. If there is power at one end and not the other then start looking.
Yes that is where my thinking was taking me. I am not great at tracking down electrical issues. I am thinking after I verify I have power at the switch. I need to check for power at the motors when operating the switch. Do you know how to get the mirror off the motor so I can access the connections?
disassembly of Ramco mirror? (https://www.foreforums.com/index.php?topic=23787.0)
https://www.youtube.com/watch?v=5MKtjgnCrw4
I rewired mine. It is a nightmare. Your glass is on with velcro. Mine was glued on. Since both operate with seperate motors I would think it is a ground issue. On Ramco site there is a wiring diagram.
Mirror Parts – Ramco Engineering, Inc (https://shop.ramco-eng.com/collections/mirror-parts)
Mirror Support (https://www.ramco-eng.com/mirror-support)
https://af62cd51-b52f-4acf-9b22-deb6a072bf1c.filesusr.com/ugd/9e24ac_2397b1885b3b4069999b812df4028ad7.pdf
I don't seem to find a drawing specifically for Ramco Mirrors but marked up this one. Sort of like a treasure hunt.
Thank you all very much huge help. I will check switch first. The ground is not something I thought of. I also reserected a 6 yr old thread by responding on that accidentally.
That's called a ZOMBIE thread. Happens around here all the time. That's the great thing about this Forum - we get to benefit from hard-earned knowledge posted many years ago by members with the exact same problem. No need to reinvent the wheel.
This will help.
Twig is that diagram year-specific or consistent across most of our coaches?
Specific for that mirror with square control knob. If you have a different mirror and knob a call to Ramco will get you that diagram.
If you have 2 separate switches a different animal.
What do you mean 2 separate switches? I have 1 switch for the left mirror and 1 for the right. 2 separate switches.
The schematic shows both mirrors coming out of the same switch. At least it appears that way.
I see what you mean. I may have erroneously put up the wrong diagram. I'll be back.
Nope. Correct diagram except instead of left and right mirror it is the upper and lower mirror. There are nine wires going to each side from each square knob and each wire is color coded a different color that the diagram does not show, so you can't mix them up. That was my nightmare. Thanks for pointing that out.
That was the schematic for my Monaco, one knob for both mirrors by rotating 1/4 turn. The schematic posted says for manual or stationary convex mirrors.
In any case, that's the schematic for our mirrors except the wiring to the upper and lower motors are color coded the same from the switch to the motors. So "stationary" or "manual" must mean that the case does not move, but the mirrors do.
Reply # 2 right here in the forum for the power convex.
Ramco Mirror Wiring Colors (https://www.foreforums.com/index.php?topic=26068.0)
I dug through the big box of paper (the owners manuals and records) and found the color coded wiring diagram for the mirrors. Checked the function of the switch with 12 volt test light I think everything is in order there. I took the flat glass off the mirror to check that side. I am still having trouble getting in there due to the aluminum plate the mirror attaches to is almost as big. There is a plug behind it, but I am scared I won't be able to plug it back in. I got side tracked as I had a glass co fix a rock chip in the windshield. Going to get back at it try to figure this out
There are medical tools like forceps also some needle nose pliers long tweezers = 6".
That might help maneuver the plugs behind the mirrors if not removed. The utube video gives a good showing of removal of glass. Heavy weight floss or thin wire may work.
The only zombie threads that aren't allowed to continue are those in the Yahoo Archive board, but we'll split those out to new topics when we see them ;)
Don't think of the ground as a discrete connection, think of it as a continuation of the path of electricity. That's actually what it is (current flows in a loop and returns to its source). So current (and thus power) flows to something and then back to its source, and if there isn't a low-impedence continuous path, it will not flow.
Unfortunately after the better part of 2 days messing with the mirror, I bailed out and put it back together with out getting it fixed. I was defeated. I checked the switch and it had power and checked with 12 volt tester and was functioning properly. I then took the flat mirror out to access the wires to the motors. Checked to see if I was getting power at the motors while operating the switch. I had nothing at the motors. Figured I had some sort of problem with wire between the switch and the motor. Tried tracing the wire between switch and motor, it was wire tied to a massive bundle of wires. I was unable to find a problem but the wires were hidden under the dash and the back of the top of dash. I was also unable to get to the corner where the wire goes through the body to the mirror arm. Considered trying to run a new wire from the switch to the mirror. I previously said I traced the wire from the switch to the mirror, I must have dreamed that I did it as there is no way I did. I may circle back to this project at some point but for now I have a nice manual mirror.
Could possibly use a wire tracer kit. It develops a tone which can then be traced alone the wiring bundle. Below is only one of many.
EXTECH Tone Generator and Probe Kit, Alligator Clips, RJ11 - 52ZK79|TG20 -... (https://www.grainger.com/product/EXTECH-Tone-Generator-and-Probe-Kit-52ZK79?gucid=N:N:PS:Paid:MS:CSM-2296:LC5DTN:20500731&ef_id=71a8df97a49d1584e103bef70ecd5725:G:s&s_kwcid=AL!2966!10!79577244397305!2331376967889612&gclid=71a8df97a49d1584e103bef70ecd5725&gclsrc=3p.ds&msclkid=71a8df97a49d1584e103bef70ecd5725)
If it makes you feel any better, I VERY seldom find it necessary to move our mirrors. We have the Ramco mirrors with flat glass on the top and convex glass on the bottom. We also added the "Top Hat" accessory mirrors from Ramco. The combo of all 3 mirrors provides a very good view of both sides of our coach. Once I have our mirrors adjusted where I want them, I never touch the mirror controls.
Yes I realized that once it's adjusted don't need to move often. That's what made me abandon the project before I wasted more time on it. I had other projects waiting on me. The wire tracing device might be helpful if I get back to this.