[Robert]

Are you talking about the little square buttons that are yellow and when you push one it turns green. They turn off and on all the lights and various other things in the coach. (Known as Sunmullion switches)

If this is what you are talking about, you should have an electrical controll box in the first bay that controlls all those switches. Each of the cards in this cabinet have fuses on them, most of them. They are automotive type ATC fuses. Check to see if they are all good.

If you have these and need more help email me.

[Ronald]

Thanks for your reply, yes it is the switch that turns green when it is on (Sunmullian switch). I have checked all of the fuses in the first bay visually and they also have a green light which is lit when they are ok and they are all lit green. I don’t know if this helps any , but when it works correctly I can also turn on the headlights or marker lights and this would turn on the dash lights and panel lights. This no longer turns on the dash lights/panel lights. I’m at a standstill. Any suggestions would be greatly appreciated. Eric

[Peter]

Sounds like a bad relay to me but I am just shooting from the hip, you might not have relays in that coach. Not sure if Country Coach had relays or logic boards.

[jack]

Sorry for your trouble. The head light switch has several terminals on the back one of which has a wire going to the controll panell to signal the headlights are on. Might look at the head light switch to see if any wires are lose. I will try to get you a wire number to look for.

Second thing you might try is up above the right windshield where there is a large bank of these switches, you should have a switch labeled Main House Disconnect, or something close to that, cycle this switch for a few seconds off then turn back on. This will turn off everything in the coach that is operated by these switches.

This might reset the system, some times it helps.

I will go over to the coach and get my wiring digrams and let you know more.

[Greg]

Eric,

What I remember from my 2000 CC was these switches could not be replaced individually because the switches are on a board. All the control is in the ECM in the first bay with the mother/daughter boards.

[Dean]

Country coach took the switch out and soldered a new one in. I tried the disconnect switch several times and it did not reset. The connectors behind the headlight switches were all connected well. I’m not sure where I would check a relay or any other connection. Is there a way to know which fuse controls this function on the control board in the first bay? Eric

[glen]

You can check the fuses on the outside of the ECC and the boards, but to get to the inner parts, you have to swing the ECC out to get to the backside of the boards. I don’t remember enough to make suggestions for you and I don’t recall any relays at all.

The guru for this stuff is Miles Circo, but someone else will have to jump in here with his contact information.

[Mike]

The individual wire numbers will take you to the connection on the ECC board. Each of the panels on my coach is listed separately. As an example the lower dash panel is marked LD (lower dash) and is made op of three wires LD1,LD2 and LD3. Even for a newbie like me the wires are well marked and easy to trace if you have the numbers. I can give you the numbers from my coach but doubt they match. Mine are all lettered as above which might help. Bath panel B1 and B2. Entry panel E1 and E2. Entry light panel EL. FB1 and FB2 front bedroom panel and so on. As Tom said they may be located on the back side of the ECC. Good luck.

[Robert]

Thank you for the replies so far. I knew my dash light dimmer switch (rheostat) was not working correctly so I unplugged it. Amazingly, all the Sunmulon lights came on, but they are all lit red (they should be amber when lit). If i punch the panel light switch all the red lights go off. If I punch any individual switch to operate the switch the red light also goes off. I have no idea why they are now red? Could a bad reheostat impact the sunmulon panel lights? Also, I assume the rheostat is a 12 v switch?

[AL]

It sounds like you may have a ground problem. Most of the time when they turn red it means a bad ground or one of the leds on each individual light may be out. There are 3 color leds on each switch and when one of them is out the switches color turns red.

You mentioned all your lights were green so the fuses were good, this is correct but you also have fuses on each one of the cards in the ecc cabinet. All the fuses you mentioned are in a row on the bottom of the cabinet.

Look at each one of the cards and you will see various fuses for all your devices, lighting, water pump, webasto and all the other stuff.

If you continue to have trouble contact this fellow below, he was on of the CC engineers. This is his business so there may be a charge.

Nick Hessler

1-541-954-2452

omnitech_nick1@yahoo.com

[Robert]

Eric, make your email available on the PC site. Gill is trying to send you some info on your problem.

[Clifford]

I have activated my email account. I have only just found this forum so all information, including information on the site itself is very helpful. I have searched for a loose ground wire, but I’m not sure I have looked in all the right places.

Eric

[Archived]

There is no secret in finding grounds, just patience. Follow the wires and eventually you get to the ground. To minimize the time spent doing that however a quick way to determine if you have a ground issue is to use a jumper that has been properly grounded to the ground terminal or wire on the device being checked.

Prevost and the converters for the most part have done an excellent job of providing grounds for the various devices and they are everywhere on the coach. They usually have a stack of black wires or cables connected to them and when I have had issues I have learned to take them apart and look at each terminal because the problem could be as simple as some white corrosion creating a resistance. That corrosion is not visible until the wires are removed from the ground post.