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81
Also, Solenoid is in the rear box and is a 100 amp. Replaced with a 100 Amp 65 continuous duty Marine grade from West Marine.
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UPDATE:

Coach is out of the paint shop. Changed the solenoid. worked for a day went to leave on a trip and shutting down again. Towed to a shop. Shop says it running fine as the problem is intermittent. They are using my spare set of Keys. Could this be an ignition problem?

Engine starts runs for a short period or for a time then shuts down. Just before shut down Low battery alarm and then an engine com alarm. The ECm has been checked.

  >:( :-[
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Technical Support / Re: Electrical glitch
« Last post by Steve Huber Co-Admin on June 08, 2024, 08:27:13 PM »
Mark,
With the wire that shows gnd disconnected from CB9, does the battery voltage go up to 12V+? If not, charge the batteries before trying to track down anything (other than the short to gnd) as low battery voltage can result in some weird symptoms. Be sure to chk voltage on both chassis and house batteries.
One other item, did you have the  engine running when you noticed the varying battery voltage? If not were you on shore power, generator or batteries?
Steve
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Technical Support / Re: Electrical glitch
« Last post by Mark Hoovler on June 08, 2024, 07:33:07 PM »
The voltage at the solenoid was 7v dc.  After going thru all the circuit breakers again.  CB-9 seems to be the culprit with a short to groundon one of the legs/wires coming off the breaker.  Next task will be to find the short on that circuit.  (bay lights/batt. outlet)
Keep you posted.
Thanks
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Technical Support / Re: Electrical glitch
« Last post by Steve Huber Co-Admin on June 08, 2024, 05:23:14 PM »
Yes, Should be rear bay on pass side. Was voltage varying at solenoid?
Steve
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Technical Support / Re: Electrical glitch
« Last post by Mark Hoovler on June 08, 2024, 03:19:26 PM »
Is the run box in the rear  where the big solenoid is located? 
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Technical Support / Re: Electrical glitch
« Last post by Steve Huber Co-Admin on June 08, 2024, 03:34:19 AM »
Is voltage varying at the ignition solenoid or at a circuit breaker? Which one? If at a circuit breaker but not at the solenoid it is either a bad circuit breaker or an overload (short) downstream from the breaker. If at the ignition solenoid, check for a problem in the rear run box.
Steve
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Technical Support / Re: Electrical glitch
« Last post by Mark Hoovler on June 08, 2024, 01:09:04 AM »
voltage seems to go in and out
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Technical Support / Re: Electrical glitch
« Last post by Carl Boger on June 08, 2024, 12:01:17 AM »
Mark,

As Steve suggested,I would start by checking the voltage to the switch and at the switch.  If the stairs think the engine is being started they will retract.  If the door is open they will try to extend.  I would also check the ground to the switch and dash.

Most steps have a plug on them that you can simply unplug to see if the two issues are related or if one goes away when the steps are taken out of the equation. 

Hopefully this will be an easy problem to fix
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Technical Support / Re: Electrical glitch
« Last post by Steve Huber Co-Admin on June 07, 2024, 11:15:22 PM »
Mark,
Assuming they are related, check the voltage at the ignition solenoid. If ok check at output of CB 36 and CB 37 to see if voltage is constant.
Steve
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