RV

Have RV questions? Ask an RV mechanic online.

Ask an Expert,
Get an Answer ASAP!

2004 American Coach Class A. I have lost house 12 volt and…

Customer Question
2004 American Coach Class A...
2004 American Coach Class A . I have lost house 12 volt and Generator battery. Main engine battery OK. The battery off button at entry door no longer functions. Battery monitor states batteries are fully charged , invertor works. I have a Big Boy isolator in battery compartment . Beside that and behind a circuit board is the smaller "ratchet " type solenoid . I replaced that , no change. I have checked all the fuses and breakers.
Submitted: 4 months ago.Category: RV
Show More
Show Less
Ask Your Own RV Question
Answered in 1 hour by:
12/18/2017
RV Mechanic: Robert, RV Mechanic replied 4 months ago
Robert
Robert, RV Mechanic
Category: RV
Satisfied Customers: 14,091
Experience: 18 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.
Verified

Hi, I'm Robert. Welcome to JustAnswer. I'm reviewing your question now and will post back with your reply momentarily.

Ask Your Own RV Question
RV Mechanic: Robert, RV Mechanic replied 4 months ago

So when you hit the interior switch it should trigger one of the solenoids. To check the solenoids what you would want to do is check for voltage on each side of the LARGE posts with the larger cables, if you have voltage on one side and not the other what you can do is get an insulated wire and jump the posts to see if your power comes on. Have you check EACH solenoid for power? You might have two or three solenoids......

Robert

Ask Your Own RV Question
RV Mechanic: Robert, RV Mechanic replied 4 months ago

You can follow up as much as needed, need to check for voltage in and out of the solenoids. IF you have no voltage going to the solenoid verify you do not have a breaker tripped between the battery and solenoid.

Robert

Ask Your Own RV Question
Customer reply replied 4 months ago
The Battery Control center box contains the small latching solenoid which I replaced. In this same box is a super size Big Boy Isolator - large solenoid - and a circuit board. I'm very concerned to not cause damage to this circuit board .
Can I jump the two large poles on the Big Boy isolator to see if that will cause 12 volt system to come online ?
RV Mechanic: Robert, RV Mechanic replied 4 months ago

YES you can jump the posts and see if the power comes on, I am thinking that is the one you are after, the big boy solenoid, the smaller one could be for the battery boost or ignition solenoid. Jumping the solenoid will not hurt the board.

Robert

Ask Your Own RV Question
Customer reply replied 4 months ago
https://intellitec.com/assets/pdf/1453-intellitec-pdf-template-53-00507-100.pdf
http://ddwt.us/Intellitec_BD1_Battery_Disconnect_Service_Manual.pdfI have both of these disconnects in the battery controller box. Can you share why box would have both of these.
RV Mechanic: Robert, RV Mechanic replied 4 months ago

One should be for the chassis disconnect, one would be for the house disconnect and if you have a third it would be a boost solenoid.

The 200 amp solenoid is normally the house disconnect one....

Robert

Ask Your Own RV Question
Customer reply replied 4 months ago
I have verified 13 volts at both large post on Big Boy isolator . I have verified 13 volts at the latching solenoid in the battery control center box in the battery compartment . Still no 12 volt DC in the cabin. Coach engine battery fine , Generator battery fine. I loaded tested house batteries and they checked OK .
RV Mechanic: Robert, RV Mechanic replied 4 months ago

So follow that cable out of the 200 amp isolator and see where the cable is going, it should be going to a breaker OR fuse box, normally you will have an outside fuse box which powers the interior fuse box for the house items. In the drawings you sent it would be the out to system. Also you have to check each side of the solenoid for voltage, I have see some owners check positive to one side of the solenoid and negative to the other that is NOT correct, you would go positive lead to one post to chassis ground and then the other post and the voltage should be the same on each post. Try and follow the cable and see where it is going and then check for voltage...

Robert

Ask Your Own RV Question
RV Mechanic: Robert, RV Mechanic replied 3 months ago

Was just checking in to see if you made any progress?

Robert

Ask Your Own RV Question
Customer reply replied 3 months ago
Discovered my House batteries were toast after disconnecting them and load testing them individually. Replace them and was hopeful problem would be resolved , but not the case. From battery compartment House cable goes to under the bed. To a 12 inch long American TecH Inc circuit board. Three power leads at top have 12 volts. At the bottom of this circuit board has 8 phone cable type wires and connectors that go to each wall switch for the 12 volt system. My tester shows 12 volts at each phone cable type wire. .................. But no power at the 15 fuses on this circuit board. Still no 12 volts inside the cabin wall switches
RV Mechanic: Robert, RV Mechanic replied 3 months ago

I wonder if that circuit board is the problem, is there any id on that board, part number etc.....

Robert

Ask Your Own RV Question
Customer reply replied 3 months ago
American Technology Components Inc PCB- 073-MD REV 2 . I looked them up Elkhart Indiana .
RV Mechanic: Robert, RV Mechanic replied 3 months ago

I think at this point I would give them a call, that appears to be specially made for that unit and could be the reason you are not getting voltage if it has failed, hopefully they have a work around or can possible refurbish it for you if it is bad...... I think the key is you have power through the disconnect solenoid and from there you have traced the voltage to that board, the fuses should be hot....

IF you would like you try another expert on this please let me know, my goal is for you to be satisfied with my efforts, I only get credit when you select a STAR rating on the page...

Robert

Ask Your Own RV Question
RV Mechanic: Robert, RV Mechanic replied 3 months ago

Hi was just checking in to see if my answer helped, IF you have more questions or concerns please feel free to contact me..

Robert

Ask Your Own RV Question
Was this answer helpful?
Ask Robert Your Own Question
Robert
Robert
Robert, RV Mechanic
Category: RV
Satisfied Customers: 14,091
14,091 Satisfied Customers
Experience: 18 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.

Robert is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV.

DutchUSA

Highly recommend this RV expert. Prompt, good and detailed answers were given. Very willing to help with genuine concern. I will ask for him next time.

JackUSA

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

< Previous | Next >

Meet the Experts:

gene

gene

RV Mechanic

1,100 satisfied customers

28 yrs exp in the industry

Nick

Nick

RVIA Certification

664 satisfied customers

5 years RV repair and reconstruction, Fleetwood RV Training course completion.

Steve F.

Steve F.

RVIA Certification

443 satisfied customers

Journeyman and Master RV technician, Mechanical & Aerospace Engineer. RVIA Technical Consultant

Robert

Robert

RV Mechanic

14,091 satisfied customers

18 yrs. RV experience including Cummins North West, Country Coach, Monaco Coach - vendor certified.

Randall

Randall

RVIA Certification

12,274 satisfied customers

RVDA/RVIA Master Certified Technician with many years experience.

Wayne

Wayne

RV Mechanic

874 satisfied customers

Work on several type of Rv engine, Trans, brakes

Chris (aka-Moose)

Chris (aka-Moose)

RV Mechanic

456 satisfied customers

16 years of experience

< Previous | Next >

Related RV Questions
Sorry, I' m new to this forum. Thanks for you help with
Hi Robert, Sorry, I' m new to this forum. Thanks for you help with valve. I didn't see your reply. Now wondering how to resolve our shower not flowing. Any ideas? The 2 issues happened simultaneously … read more
Robert
Robert
RV Mechanic
14,091 satisfied customers
Just de-winterized. 2017 Navion. 24' Wiinebego Navion with
2 issues. One with water coming out of water heater when hooked up to city water, when flushing pink fluid. 2. Now shower is not working. … read more
Robert
Robert
RV Mechanic
14,091 satisfied customers
I want to put a ladder on my Coachmen 2005 M249 trailer. Is
I want to put a ladder on my Coachmen 2005 M249 trailer. Is there any problems with that and where should it be placed. … read more
Chris (aka-Moose)
Chris (aka-Moose)
RV Mechanic
Vocational, Technical or Trade School
456 satisfied customers
Left side of my rv have no power. I get this rv like that,
left side of my rv have no power JA: I'll do all I can to help. How long have you been dealing with this? Customer: i get this rv like that, it don't have a coverder JA: Do you plan on doing the work … read more
Robert
Robert
RV Mechanic
14,091 satisfied customers
I have a 2015 Vista KE Winnebago. Someone else winterized. I
I have a 2015 Vista KE Winnebago. Someone else winterized. I hooked up the water fill for the coach tank when the tank got full it was running out underneath coach. Normally when water hose is hooked … read more
Robert
Robert
RV Mechanic
14,091 satisfied customers
I cannot get my radio to turn on. I replaced both 40 amp
I cannot get my radio to turn on. I replaced both 40 amp fuses in the coach elec panel and the screen and radio still does not work … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have a 1997 34 foot bounder and need to change oil,flush
I have a 1997 34 foot bounder and need to change oil,flush radiator, drain 4 yr old gas, etc … read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
12,274 satisfied customers
Am looking at putting new tires on my 2003 HR
Am looking at putting new tires on my 2003 HR Vacationer..,,currently has 235x80x22.5 Michelin's would like to go to a 255x70x22.5 is that ok or what size would be best to change to? … read more
Robert
Robert
RV Mechanic
14,091 satisfied customers
I'm looking for an unit,H541816AXX1C0? 2014 Forest River
I'm looking for an unit,H541816AXX1C0? JA: What's the make/model/year of your RV? Customer: 2014 Forest River Sanabel JA: What is the model of your '14 RV? Customer: Sanabel JA: Are you fixing your RV… read more
Robert
Robert
RV Mechanic
14,091 satisfied customers
The refrigerator keeps leaks. Refrigerator keeps leeking.
Refrigerator keeps leeking. Water on the. Floor. Norcold. Model. 1210tmss … read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
12,274 satisfied customers
Is there a water valve for the water heater to shut off and
Is there a water valve for the water heater to shut off and open. I am dewinterising a 2015 Vista KE. It was winterised in oregon and I just brought to alaska.. I have filled the water holding tank bu… read more
Robert
Robert
RV Mechanic
14,091 satisfied customers
Can I charge my rv storage batteries with out disconnecting
Can I charge my rv storage batteries with out disconnecting and isolating each battery? … read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
12,274 satisfied customers
MY LEVELING JACKS ORE DOWN ANDWONT RETRACT. THE LIGHTS JUST
mY LEVELING JACKS ORE DOWN ANDWONT RETRACT. THE LIGHTS JUST BLINK AND NOT RESPOND TO THE BUTTONS … read more
Robert
Robert
RV Mechanic
14,091 satisfied customers
Start and runs with starter button pushed in and dies when
start and runs with starter button pushed in and dies when starter button is released … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,364 satisfied customers
We have a 2017 30DS FR3 We have noticed a rough (screw
Hi. We have a 2017 30DS FR3 We have noticed a rough (screw rattling) ride on several roads lately. One road we traveled on recently, we have traveled in an auto, but it was brutal in the FR3. I have n… read more
Robert
Robert
RV Mechanic
14,091 satisfied customers
We have a 2003 Excursion 38 ft. With 2 slides. The front
We have a 2003 Excursion 38 ft. With 2 slides. The front slide will not close without some assistance to start, from the open position. I had the motor replaced by an authorized dealer, but the proble… read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
12,274 satisfied customers
I need the wiring diagram for a 6.5 propane Onan generator
I need the wiring diagram for a 6.5 propane Onan generator for a fifth wheel RV with the push button control diagram also … read more
Hank F.
Hank F.
Service Technician
High School or GED
5,364 satisfied customers
The propane water heater does not ignite. Propane full. No
The propane water heater does not ignite. Propane full … read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
12,274 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x