Selnoid in front wiring panel

Topic: Selnoid in front wiring panel (Read 2261 times) previous topic - next topic

Re: Selnoid in front wiring panel

Reply #25 – April 23, 2019, 01:17:59 pm

Quote from: Twig – April 23, 2019, 12:37:50 pm

" If I flip the boost switch every thing lights up ."
Hang on a second. If your gauges come on with the boost switch on and the key on, it is NOT the ignition solenoid. It would be a bad battery connection associated with the START battery.

Twig, you've got it!! No one seems to want to pull the connections at the start batteries to check and clean if necessary.

P

Re: Selnoid in front wiring panel

Reply #26 – April 23, 2019, 01:39:59 pm

Quote from: Chuck & Jeannie – April 23, 2019, 10:35:21 am

Steve,

Brett gave you two simple tests to perform in his Reply #1 & #13. Have you done these tests? If you did, what was the result?

Instead of trying to guess what the problem is, if you would try doing some logical trouble shooting with a multimeter, and report back to us with the results, then we will be able to provide much better advice.

Not yet Chuck, right now I am waiting on a Amazon delivery then I will head out there. The coach is stored about 50 miles from the house. I do have the test printed out and 2 multi-meters in the truck and a full tank of fuel.

Re: Selnoid in front wiring panel

Reply #27 – April 23, 2019, 01:46:41 pm

I dont have any helpers and my arms are not quite that long "LOL"

When I replaced the batteries I did clean all the terminal and clamps and replaced all the bolts and nuts as I twisted 2 of them in half removing them.

Re: Selnoid in front wiring panel

Reply #28 – April 24, 2019, 08:14:14 am

Ok, with switch off no voltage on either large post,

with switch on there is 13v to one side and none to the other.

Re: Selnoid in front wiring panel

Reply #29 – April 24, 2019, 08:27:35 am

Steve,

Are you sure you are checking the correct posts? There are 4 posts on the solenoid. On each side there is a LARGE post. On the front (pointing toward you) there are 2 smaller posts (one has green wire, one has white wires). The LARGE post on the right side has some red wires attached. The LARGE post on the left has a big red wire and some black wires attached.

Tests suggested by Brett: doesn't matter which order you do the tests - results should be the same.

Fot the first test suggested by Brett (checking function of ignition solenoid), you want to check for voltage on the two LARGE posts on each side. With key OFF, one LARGE post should show battery voltage, the other should show zero voltage. With key ON, both LARGE posts should show the same battery voltage.

For the second test suggested by Brett (checking function of ignition switch), you want to check for voltage on the two SMALLER posts on the front of the solenoid. Key OFF, should not have voltage on either post. Key ON you should show battery voltage on ONE of the smaller posts (could be either one - does not matter which one).

Re: Selnoid in front wiring panel

Reply #30 – April 24, 2019, 08:38:37 am

Thanks Chuck I just checked again and yes I am checking the two large post on the sides.

One thing I did notice is that with switch ON and boost ON, I am getting 13v on the left post, but not any of the others

with the switch on and the boost OFF I dont get any voltage to any of the post large and small

Re: Selnoid in front wiring panel

Reply #31 – April 24, 2019, 08:43:07 am

So with ignition switch OFF and boost switch OFF you don't have battery voltage on ANY of the 4 posts?

Sounds like two problems going on here.

First, you are not getting Start (chassis) voltage to either large post (ignition switch and boost switch both OFF)

Second, with ignition switch and BOOST switch both ON, you have voltage at one LARGE post, but the solenoid is not closing because one of the small posts is not seeing voltage from the ignition switch.

Very puzzling.

Re: Selnoid in front wiring panel

Reply #32 – April 24, 2019, 08:52:09 am

Steve,

It sounds like you have tripped the breaker that feeds the ign. sol. and the related electrical buss. Seems like that is a 30 amp breaker on your age coach. Look on your B-2126 print.

Mike

It could be the 90 amp breaker that the 30 amp feeds off of.

Re: Selnoid in front wiring panel

Reply #33 – April 24, 2019, 08:56:13 am

Quote from: Chuck & Jeannie – April 24, 2019, 08:43:07 am

So with ignition switch OFF and boost switch OFF you don't have battery voltage on ANY of the 4 posts?

Sounds like two problems going on here.

First, you are not getting Start (chassis) voltage to either large post (ignition switch and boost switch both OFF)

Second, with ignition switch and BOOST switch both ON, you have voltage at one LARGE post, but the solenoid is not closing because one of the small posts is not seeing voltage from the ignition switch.

Very puzzling.

Yes this is correct. I will go check the battery connections again and see how far I can trace the + wire. we did have over 2" of rain here last night so it is a bit sloppy out.

Re: Selnoid in front wiring panel

Reply #34 – April 24, 2019, 09:01:54 am

Steve,

You are on the right track-- have to have voltage at one large lug of the ignition solenoid, as is is always connected to the chassis batteries (or should be!). So trace the wires/circuit/circuit breaker from chassis batteries to that solenoid.

Re: Selnoid in front wiring panel

Reply #35 – April 24, 2019, 09:03:20 am

Quote from: Pamela & Mike – April 24, 2019, 08:52:09 am

It sounds like you have tripped the breaker that feeds the ign. sol. and the related electrical buss. Seems like that is a 30 amp breaker on your age coach. Look on your B-2126 print.

EXCELLENT deduction!

On my '93 model, that circuit breaker is behind a white fiberglass cover in the center storage bay, driver side. On my coach, the "30A DASH" breaker is the TOP breaker in the vertical stack of 4 breakers. I think it is a manual reset breaker. Should have a little tiny button sticking out on the side that you push in to reset.

Re: Selnoid in front wiring panel

Reply #36 – April 24, 2019, 09:04:50 am

Steve,

If you don't know those breakers are hid in the basement. The breaker panel is on the wall behind the white fiberglass cover.

Mike

@ Chuck, you beat me to the post button this time

Re: Selnoid in front wiring panel

Reply #37 – April 24, 2019, 09:24:27 am

There are also 3 large round 90A circuit breakers under the white cover. START battery voltage goes through a 90A breaker (one on the left) on the way to the ignition solenoid. It should be a "auto reset" breaker, according to my schematic.

Would be good to check for START battery voltage at the big left-hand 90A breaker while poking around under the white cover.

BE CAREFUL working under that cover! Don't want to short out something and cause LOTS of sparks.

Re: Selnoid in front wiring panel

Reply #38 – April 24, 2019, 09:27:32 am

OK, I do not see any reset buttons.

are the large black wires the ones coming from the batteries and the red ones going to other devices?

I did find the breaker for the furnace and reset it so that fixed another problem "LOL"

Re: Selnoid in front wiring panel

Reply #39 – April 24, 2019, 09:31:45 am

Re: Selnoid in front wiring panel

Reply #40 – April 24, 2019, 09:34:09 am

Steve,

Check for 12+ VDC IN and OUT of those breakers to good clean metal (ground).

Re: Selnoid in front wiring panel

Reply #41 – April 24, 2019, 09:37:00 am

Quote from: wolfe10 – April 24, 2019, 09:34:09 am

Steve,

Check for 12+ VDC IN and OUT of those breakers to good clean metal (ground).

I have over 13v on both legs of all 3 of them

Re: Selnoid in front wiring panel

Reply #42 – April 24, 2019, 09:39:02 am

If one of the small circuit breakers are tripped, a little button will be sticking out the hole in the side.

Arrow points to the hole in one of the breakers (not necessarily the one for DASH power)

Re: Selnoid in front wiring panel

Reply #43 – April 24, 2019, 09:43:21 am

Quote from: Super8mm – April 24, 2019, 09:37:00 am

I have over 13v on both legs of all 3 of them

Are you talking about the 3 big round circuit breakers at the top of the panel?

Re: Selnoid in front wiring panel

Reply #44 – April 24, 2019, 09:47:38 am

Quote from: Chuck & Jeannie – April 24, 2019, 09:43:21 am

Are you talking about the 3 big round circuit breakers at the top of the panel?

Yes the 3 big ones

to check the small ones I take that the buss bar is hot so I need to check the wire (load) side for 12v?

Re: Selnoid in front wiring panel

Reply #45 – April 24, 2019, 09:50:28 am

Quote from: Super8mm – April 24, 2019, 09:47:38 am

to check the small ones I take that the buss bar is hot so I need to check the wire (load) side for 12v?

Correct - buss bar hot.

On the 3 big round breakers, one on the left sends power to IGN SOL. It should show START battery voltage on both posts.

Re: Selnoid in front wiring panel

Reply #46 – April 24, 2019, 09:51:53 am

Quote from: Chuck & Jeannie – April 24, 2019, 09:50:28 am

Correct - buss bar hot.

On the 3 big round breakers, one on the left sends power to IGN SOL. It should show START battery voltage on both posts.

Yes I am getting 12+v to both legs of all 3 of them

Re: Selnoid in front wiring panel

Reply #47 – April 24, 2019, 09:55:32 am

Quote from: Super8mm – April 24, 2019, 09:51:53 am

Yes I am getting 12+v to both legs of all 3 of them

Is your BOOST switch in the OFF position?

Re: Selnoid in front wiring panel

Reply #48 – April 24, 2019, 09:59:54 am

Quote from: Chuck & Jeannie – April 24, 2019, 09:55:32 am

Is your BOOST switch in the OFF position?

Yes it is off

all the small breakers that have wires on the load side are showing 12+v to them

Re: Selnoid in front wiring panel

Reply #49 – April 24, 2019, 10:01:47 am

Check to be sure the Salesman Switch (inside, by the entry door) is turned ON. It should be, if you have power to all the small breakers.

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