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Old 05-11-2009, 10:00 PM   #1
Workhorse Chassis Owner
Join Date: Mar 2006
Location: Columbus, IN
Posts: 70
Intellitec EMS reboot

When bringing the MH out of storage, I discovered that the EMS was shedding loads when hooked up to 30 amps, even when no AC equipment was energized. EMS worked normally when on GenSet. Nothing in the EMS pamphlet pointed to a solution, so I searched the IRV2 forums and saw that pulling and replacing an automotive type 12v fuse located inside the AC C/B panel had solved other problems. Tried it, and it worked. EMS back working normally on 30 amps. When the fuse was reinserted, a red LED on the circuit board flashed momentarily, then a green LED illuminated steady, so there must be some sort of BIT built into the EMS. Thinking about it, a reboot might be possible by removing AC power and simply turning the house battery disconnect off for a minute.

Conclusions: 1) As with any electrical problem, try removing ALL power for a minute to see if the component/system will reboot. 2) Manufacturer supplied paperwork is generally weak, with regard to troubleshooting. 3) The IRV2 website is a great resource.

2005 1/2 Holiday Rambler Admiral SE 36DBD
2013 Honda CRV
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Old 05-12-2009, 10:27 AM   #2
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Yep have to agree with you on all three counts!

Tom, Cheryl & Blossom(coonhound mix) Formerly of Bellingham,WA'05 Winnebago Journey 36G. FL-XC, Cat 350, aero muffler, AFE filter, 4 FSD Koni's, ultra track bell, SafeT+, FMCA397030, WIT 129107
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Old 05-12-2009, 12:22 PM   #3
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Location: Melbourne & Marathon, Florida
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Mine went POSTAL on us. I shut off main breaker and 12 vote disconnect. Turned back on and it still was going POSTAL. Repeated with same response. Took it off the wall, removed the fuse waited a minute and re-inserted and all was fine. Coincidence, I think not! For any ex-postal workers, no pun intended!
2005 Safari Cheetah 38PDQ - 2009 Ford Flex
Me (Gatogonow), The Boss (DW), Honey Bunny, Maggie May and Mollie Kay (The Gatos)!
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Old 05-13-2009, 01:32 PM   #4
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Spartan Chassis
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Location: ...hopefully on the road!
Posts: 4,432
The Xantrax portion of my EMS panel (shows charger, inverter, etc status) acted up after inverter replacement (due to lightning strike), and on one other occasion. In my case, disconnecting the ethernet type cable at either the inverter end OR at the board inside, leaving it disconnected for 5 minutes or so, then re-connecting, was sufficient to "re-boot" the EMS brain.
Paul (KE5LXU) ...was fulltimin', now parttimin'
'03 Winnebago UA 40e / '05 Honda Odyssey toad
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Old 05-13-2009, 07:00 PM   #5
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Check your batteries.

Twice I had crazy unreadable displays (where the amps readout is if on 30 or 20 amp shore power). Plus, the batteries would not charge properly and shore power would not connect. Once, one house battery had bad cell, then a few months later (last week) the same "nonsense" on the display again. Found the other two batteries were bad. (Thats three out of three house batteries that went bad at 11 and 13 months age).

All three Optima batteries were replaced free on warranty.

John Abbott, 2004 Winnebago Journey, 39'
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