Generac power generator not running

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Riverman
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Re: Generac power generator not running

Postby Riverman » Sat May 23, 2020 9:13 pm

The ignition coil or ignition parts, if they are solid state, may be failing when they get hot enough. I have seen this before on some small engines.

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John *.?-!.* cub owner
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Re: Generac power generator not running

Postby John *.?-!.* cub owner » Sun May 24, 2020 9:46 pm

Was it working and under load or just setting running? that could affect temperature of engine.
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staninlowerAL
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Re: Generac power generator not running

Postby staninlowerAL » Wed May 27, 2020 3:19 pm

There's no situation that preceeds the shutdown. Sometimes working/load, sometimes just running. Sometimes it won't start/run, sometimes it will. My next check is to adjust the valves.

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Don McCombs
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Re: Generac power generator not running

Postby Don McCombs » Wed May 27, 2020 3:30 pm

Is this generator connected to a transfer switch?
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staninlowerAL
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Zip Code: 36558
Tractors Owned: Cubs: (3)'49's, (1 is parts), (1)'57 IH Cub LoBoy w/FH, (2)154 Number Series Loboys, (1 is parts), '76 Longstripe w/FH, Mowers: C-22, Bush Hog 412, Pennington 59, Woods RM42CF, Woods 42, assorted FCub plows, planters, discs, etc. OTHERS: '49 AC B & Ind. Sickle mower, '61 AC D12 Ser 2, '52 8N, '56 Ferguson 35 Deluxe, '47 & '49 Avery V, '53 MM BG (offset), '51 JD M (regular), '56 JD 420C, with Blade and fire plow, '85 JD 850 (Yanmar) w/72" belly mower, '76? Yanmar 2TR15 1500 & Bush Hog SQ42S-2 mower, '78? FORD Dexta, '86 FORD LGT14D & 48" Mower, (3)Cub Cadets & Mowers (MTD), (4) Sears Surburban's, other MTD mowers, Jeeps & other misc. "treasures"
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Re: Generac power generator not running

Postby staninlowerAL » Thu May 28, 2020 7:53 pm

No transfer switch.

outdoors4evr
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Re: Generac power generator not running

Postby outdoors4evr » Tue Jun 02, 2020 6:14 am

Sounds like a loose or failing electrical wire. Either in the low-oil safety circuit or in the coil power supply line.
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staninlowerAL
10+ Years
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Posts: 4256
Joined: Fri Oct 29, 2010 11:34 pm
Zip Code: 36558
Tractors Owned: Cubs: (3)'49's, (1 is parts), (1)'57 IH Cub LoBoy w/FH, (2)154 Number Series Loboys, (1 is parts), '76 Longstripe w/FH, Mowers: C-22, Bush Hog 412, Pennington 59, Woods RM42CF, Woods 42, assorted FCub plows, planters, discs, etc. OTHERS: '49 AC B & Ind. Sickle mower, '61 AC D12 Ser 2, '52 8N, '56 Ferguson 35 Deluxe, '47 & '49 Avery V, '53 MM BG (offset), '51 JD M (regular), '56 JD 420C, with Blade and fire plow, '85 JD 850 (Yanmar) w/72" belly mower, '76? Yanmar 2TR15 1500 & Bush Hog SQ42S-2 mower, '78? FORD Dexta, '86 FORD LGT14D & 48" Mower, (3)Cub Cadets & Mowers (MTD), (4) Sears Surburban's, other MTD mowers, Jeeps & other misc. "treasures"
Circle of Safety: Y
Location: AL (Southwest)

Re: Generac power generator not running

Postby staninlowerAL » Wed Nov 04, 2020 10:13 pm

Recent update on my gen gremlin. Late Hurricane last week caused me to have to dig deeper into this problem. With the help from a nephew who is skilled with electronic/electrical controls, the start/stop/no start/shutdown gremlin was traced to the oil pressure switch which activates a relay that supplies 12v power to the engine run circuit. In my case the OP switch was working properly but the relay was intermittent, hence the on again/off again problem, ran it 6 days, 24/7 until utility power was restored today. Relay cost replacement looks to be in the $200 range. Glad to be finally making some progress. 240v 50A SO cord feeds directly into the 50A aux service connection on the right side of the power safety disconnect switch as the picture shows.
IMG_20201103_152058079.jpg


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