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Unread 10-20-2016, 07:41 PM   #1
Rich Z
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Default Generator repair

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Got to remember to call someone next week to get my Onan generator fixed. Don't really want to go through another pain in the butt week like we just had again.
Well hell....

I tried contacting people known to work on generators, and had no luck. I did get one place to refer me to a place called ALL ABOUT GENERATORS, which just so happens to be run by the guy who originally installed the generator for me. Guy by the name of Roy Holland, and it was Morgan Electric he worked for when I bought the generator from them and had it installed. So I thought this would be the ticket. Actually, thinking back, I did contact that company when the generator first got chewed up, two years ago, if I remember correctly. They told me they had a 6 week backlog, and I guess in hindsight, I really should have put myself on the calendar. But honestly, from what I have seen recently, that would have been wasted effort.

Anyway, I contacted ALL ABOUT GENERATORS, and spoke to a guy (Justin) who said he could come out on Thursday the following week to take a look at the generator. He said he would call on Wednesday to confirm. Didn't hear back from him on Wednesday. Late on Thursday he did call to tell me he wasn't going to make it (gee thanks for wasting two days of my time waiting), but would have someone get out here on Friday.

Friday comes, and then late in the afternoon someone finally calls. Turned out to be Roy Holland Jr. He said he was on the way out.

So he gets out here and I showed him the control box with the chewed up wires. I guess I was looking closely, but don't think he was. He said, "Let's see if it will start up." Apparently he didn't notice the wire on the start switch that was hanging loose after being chewed through. So of course it wouldn't start. Have to admit that I wasn't real impressed with an electrician who didn't notice a wire to a switch completely cut in two. Then he starts talking about replacing the entire control box and how he would have to order it from Onan. And some of the larger wires with minor chew marks would have to be replaced too, and those would have to likely be ordered. I'm thinking, "Hell, this guy is trying to rack up the $$ with this!" Last time I had rodent damage repaired on that generator it cost me $1,000. I was getting the feeling that he was trying to beat that record.

So anyway, he said he would check on prices for things, but since it was late on Friday, he wouldn't get back to me until Monday. Did I hear back from him? Nope. And I'm not really surprised. This looked like a lot easier fix then when I first looked at the damage. So I found the manuals and the schematics and by taking pictures of the damage, traced the wiring to figure out exactly what wires need to be replaced. Then I went and bought some wire and new crimp on ends from Lowes and Home Depot. BTW, WHY do you always have to go to BOTH stores to get everything you need? Anyway, one of the wires would have to be soldered, as it went into a harness that went somewhere down below out of the control box. So I needed to strip the end pf the wire I could see and just solder an extension wire to it and run it where it needed to go in the control box. Little bit of shrink wrap for insulation and it's as good as new.

Anyway, today I laid out all the stuff I would need and just jumped in with both feet. Didn't have much to lose at this point. It's already broke. Maybe two hours later, it was done. Soldered one wire, replaced several others with crimped on ends, and then put wire loom for protection around those large cables with minor damage to the insulation. There were a couple of other smaller wires with real small nicks in them that I didn't feel needed to be replaced, since the wire itself was not cut through. I put some liquid insulator on those and that should be enough.

Double checked my work, and it was time for the smoke test.

Tried the manual start of the generator motor with the switch and after cranking for a while, it started up. Hallelujah! BTW, I changed out the oil and filter a couple of weeks ago, along with replacing the battery, since it had been sitting for two years. Then the real test came when I set the generator for auto start and then killed the power in the building that the generator was designed to detect, and darn if that didn't work too.

FIXED!

Wished I had known how relatively easy that was going to be, as I would have worked on that rather than fussing around with what I had to go through with the portable generator during the power outage. But live and learn, I guess. I guess I was just reluctant to work around electric stuff like that. Doing a smoke test is one thing, but possibly BEING the smoke test myself is just not my cup of tea.

Wonder if I will ever hear back from ALL ABOUT GENERATORS?
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Unread 10-21-2016, 02:30 AM   #2
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Here's a few pics of the generator control box opened up before doing the repairs.







When you look at the schematics, it seems MUCH easier to trace the wires because they used to be all color coded. Evidently the last time I had this sort of repair done, the electricians only had white wire to work with. So yeah, this made it a bit more challenging to figure out.
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Unread 10-21-2016, 04:49 AM   #3
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As Hermine approached I went out to start my Generac 15000 portable generator to make sure the battery was up. I had just used it in June and it had run fine. This bad boy will run my entire house, including BOTH central air units! Would not start! I had two freezers full of food that I used on my food truck so I start checking fuel filter, fuel pump, it's getting ignition. I find out it has a fuel shut off solenoid that will shut off if oil pressure is low. I jumped the oil pressure switch-no joy. Took the carb off and cleaned it, it wasn't even dirty. I run only non-ethanol gas. Blew out every orifice with carb cleaner, put it back together, still won't fire off. Storm is here now, power is out. Took carb apart again, removed shut-off solenoid completely, put it back together, fires off! Appears to run faster than normal but hooked up to my house and runs everything.....for about 7 minutes.....shuts off. Long story short, power is off for six days. Lost everything in both freezers as well as two refrigerators. Found an authorized Generac service shop, it's been there ever since. Supposedly diagnosed by Generac engineers as a engine control module(printed circuit board),they got one in Monday but it still isn't running right, waiting for engineers to come up with a new fix. Already at $400+.
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Unread 10-21-2016, 09:03 AM   #4
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Default Oh yeah? My generator crapped out, too!

I have a portable Generac generator that got its first real use in the 10 years I've owned it. I made it a point to start it and run it for a few minutes every 3 or 4 (or so) months. Always started. Well, you guessed it- didn't start when I needed it. The shut off valve broke in the closed position. So, with two refrigerators and a freezer full of food, I found myself in need of a jimmy-rig fix. Then when the storm was over I ordered what I needed to get it back to where it should have been ... and where it was for 10 f'n years
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Unread 10-21-2016, 10:59 AM   #5
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Well, ALL ABOUT GENERATORS finally got back to me this morning. Quoted me a price of $900 and said it would take two days to fix. I told them I would get back to them. Uh huh.....
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Unread 10-21-2016, 11:19 AM   #6
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BTW, one of the reasons I chose the Onan 20K generator was because it has a Ford 4 cylinder automotive engine in it. So that should make repairs and spare parts relatively easy to come by.
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Unread 10-21-2016, 12:24 PM   #7
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Quote:
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BTW, one of the reasons I chose the Onan 20K generator was because it has a Ford 4 cylinder automotive engine in it. So that should make repairs and spare parts relatively easy to come by.
You would be surprised Rich. It's getting hard to find parts for a 2003 Taurus these days. They only made a few million of them.....
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Unread 10-21-2016, 04:40 PM   #8
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Yeah, probably finding parts for a particular model of a car could become difficult over time, but engines parts for engines used in multiple vehicles over multiple years I would think would be easier to find.

Of course, Murphy's Law would dictate that whatever part you needed the most would be the one hardest to find.
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