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Old 08-21-2020, 10:39 PM   #1
dkoldman
Senior Member
 
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Brand: Still Looking
Model: Sunstar 29VE Winnebago
State: Texas
Posts: 5,642
THOR #13058
No AC Voltage from Transfer Switch?

What could cause no shore power from ATS?

I confirmed 120v on both legs at pedestal for 50, and the 30 and 20 amps legs. (yes with a voltmeter)

I confirmed 120v input voltage on both legs at pedestal for 50, and the 30 and 20 amps legs.

However the opposite side of the connector inside the Southwire Surge Guard is dead on all legs.

This is my first true issue with my coach; so I am all excited about who will answer first. This is 2019 Winnebago 29VE. I have trip plan for in the morning, but right now unless I run my generator I will have zero power.

Here is more context as to what happened and notes that I have on the issue.

1. I had just picked up the coach from Winnebago dealer who installed a new 120v receptacle BEFORE the ATS. That receptacle is hot (120v) when ANY shore power is supplied; so they got that part right.
2. I have called Dealer; so waiting for them to track down technical to call back. The coach is still under Mfg warranty.
3. It has the Southguard Surge Guard Model 40100 120/240 50 Amps 60 HZ

Odd observation... When I first got it home and connected the shore power; the generator tried to come on? It was humming and vibrating pretty good but the genset was NOT running? I went inside and verified that there was no power and manual stop button did nothing to stop the humming. I had to disconnect shore power and it stopped. I have since made a setting change within the AGS - EC - 30 to verify it could sense shore power; it could , and to also tell it that the sensor is now in front (Before) of ATS. Since then the oddity of genset trying to start or vibration has stopped; but there is no shore power through the ATS to confirm.

All ideas welcomed.
__________________
2019 Sunstar 29ve; Toad Lincoln Navigator; RVi Brake 3 & Command Center; Roadmaster Nighthawk Tow bar & Baseplate; Sumo Springs; Safe T Plus; Onan EC-30 AGS; Vmax 250ah AGM; T-Mobile Internet; H/W Heater / Chassis Disconnect Switches; Southwire Surge Guard 44270 & 34951 w/Monitor 40301; Jet Flo Macerator; Alpine SPE500 Speakers; Visio M21D-H8R
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