1. Global Power Group

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Lakeside, CA

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Global Power Group

2.3 (4 reviews)
Closed • 9:00 am - 6:00 pm

Services - Global Power Group

Electric inspection

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3 years ago

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Cummins Sales and Service - Welcome to the El Cajon Service Center!

Cummins Sales and Service

(18 reviews)

Cajon Heights

A bit pricey but you get what you pay for…read more Went to a shop before this and they just took my money without fixing the generator These guys got it right (it's never sounded better) Grateful to have my RV back!

Same complaint as many others. Brought my coach in for a couple minor issues but mainly the Onan…read moregenerator would not stay running. When it's hot out it will start but then within an hour die. Been happening for about a year, we tested it with the door open and it would run most of the time indefinitely. So anyway when I brought it in I voiced all this too the service advisor. I told him to make sure the mechanic tests it with the door closed because we know with the door closed it's overheating, which is the problem I was trying to solve. They charged me for the technician to look at it and then run it for 2 hours in an air conditioned bay with the door open. So of course it didn't overheat. So they call me and go oh no nothing's wrong. So I question them about it sure enough they ran it under the wrong circumstances. So then the service advisor goes back out turns it back on, runs with the door closed sure enough within an hour it dies. Well long story short almost $700 later they tell me yep it's overheating. Yeah I know that that's why I brought it in, what is the diagnosed issue? We're not sure but we should probably just do a thousand hour service cuz that'll cover everything. Well the generator only has about 850 hours So basically they just wanted to throw parts at it. I can take it to any generator or RV shop and they could do that cheaper than what Cummins would charge. I took it to Cummins for a targeted diagnostics But instead got stuck with a huge bill and no more information than when I brought it in. Second issue of the three issues they fixed.. I have a hydraulic parking brake that's connected to the drive line. They had to repair a hose that was leaking. Well after they repaired the hose they didn't add any of the lost hydraulic fluid into the reservoir. So the very first time I went to put the parking brake on it wouldn't engage. So I'm sitting there at my house trying to call my wife holding the brakes so she can come in hold the brakes so I can go out and diagnose the issue which was the reservoir was low on hydraulic fluid. I honestly didn't bother to call them about anything I mean how can you trust him if they don't even bother to fill up a parking brake reservoir which keeps the coach from rolling away. So don't waste your money going to Cummins thinking they know better, at the 200 plus dollars an hour your not getting any better service than anywhere else.

Global Power Group - electricians - Updated October 2026

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