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Started By
Message
1
Posted on 9/2/21 at 12:52 pm to theunknownknight
quote:
1. USE 10W-30 FULL SYNTHETIC OIL
2. Keep top closed
3. Change oil every 100-200 hours
4. Change air filter every 400 hours
1) makes sense
2) good luck with that. might have better luck than I and i know some of my neighbors with the 22kw had luck with that. Some say they are designed to be closed to pull air through to cool the engine. Doesnt make any sense in my mind based on the enclosure design and sure as hell didnt work for me last year.
3) better be conservative and do 100 even with 10w
4) pretty standard.
This post was edited on 9/2/21 at 12:55 pm
Posted on 9/2/21 at 12:53 pm to Prosecuted Collins
quote:
fter reading this thread I rested my Generac whole home for 3 hours….now the bitch won’t start back up. FMl.
what codes are you getting and what is it doing?
Posted on 9/2/21 at 12:54 pm to DownshiftAndFloorIt
quote:
Do they not have manual overrides?
for what? for the error codes? you can reset the main board by pulling the small fuse and reset it back up following on screen instructions. other then that...i dunno how to do any manual override.
maybe a real service tech can.
Posted on 9/2/21 at 12:58 pm to lsu777
Got the over crank error. Pulled the fuse and reset controller and started right up.
Posted on 9/2/21 at 1:07 pm to lsu777
The 10W-30 is the most import piece - these things are designed to be run in yankee territory and 5W-30 breaks down quickly in south LA heat
They were insistent that it be full synthetic and told us it would not void any warranties - the guy at the shop 100% recommended the 10 weight
They were insistent that it be full synthetic and told us it would not void any warranties - the guy at the shop 100% recommended the 10 weight
This post was edited on 9/2/21 at 1:08 pm
Posted on 9/2/21 at 1:08 pm to theunknownknight
I have been using 10w-30 and my oil still looks new running since Monday.
Posted on 9/2/21 at 1:09 pm to theunknownknight
quote:
The 10W-30 is the most import piece - these things are designed to be run in yankee territory and 5W-30 breaks down quickly in south LA heat
They were insistent that it be full synthetic and told us it would not void any warranties - the guy at the shop 100% recommended the 10 weight
i agree and the manual does say it derates at 77 degrees so no telling how much one is actually putting out.
Posted on 9/2/21 at 1:10 pm to Prosecuted Collins
quote:
Got the over crank error. Pulled the fuse and reset controller and started right up.
nice glad it worked
Posted on 9/2/21 at 1:22 pm to lsu777
It will still put out whatever the engine can put out, the derate is only to protect the generator end from getting too hot with the elevated ambient air temps. Its up to you to actually reduce the load to what its rated for. They do have less capacity the hotter they get but generally the generator is still capable of putting out rated kW at elevated temperatures, its just going to degrade quicker and possibly damage itself. If it can put out 50 amps at 70 degrees it will put out 50 amps at 100 degrees, just at way higher and possibly dangerous winding Temps.
The engine derates for different fuels are physical limitations, the engine will not make the same amount of power at wide open throttle on LNG as it will on gasoline.
The engine derates for different fuels are physical limitations, the engine will not make the same amount of power at wide open throttle on LNG as it will on gasoline.
Posted on 9/2/21 at 1:27 pm to lsu777
quote:
it derates at 77
quote:
lsu777
Checks out
Posted on 9/2/21 at 1:32 pm to OLDBEACHCOMBER
The generac whole house generator failure rate post Ida would have me rethink my career choice if I were a generac sales person.
Posted on 9/2/21 at 1:32 pm to lsu777
quote:
good luck with that. might have better luck than I and i know some of my neighbors with the 22kw had luck with that. Some say they are designed to be closed to pull air through to cool the engine. Doesnt make any sense in my mind based on the enclosure design and sure as hell didnt work for me last year.
I don't know, mine is clearly sucking a ton of air in one end and pushing it out the other. Seems like opening the top would seriously disrupt that flow.
Posted on 9/2/21 at 1:36 pm to DownshiftAndFloorIt
quote:
It will still put out whatever the engine can put out, the derate is only to protect the generator end from getting too hot with the elevated ambient air temps. Its up to you to actually reduce the load to what its rated for. They do have less capacity the hotter they get but generally the generator is still capable of putting out rated kW at elevated temperatures, its just going to degrade quicker and possibly damage itself. If it can put out 50 amps at 70 degrees it will put out 50 amps at 100 degrees, just at way higher and possibly dangerous winding Temps.
The engine derates for different fuels are physical limitations, the engine will not make the same amount of power at wide open throttle on LNG as it will on gasoline.
yea the stated power is off LP, LNG is 2kw less on all of them.
why does the 600 feet of elevation affect it?
the paper i found that was comparing the cummins vs generac vs kohler stated the generac air cooled was rated 77 degrees and 600 foot of elevation.
cummins is 104 degrees up to 3300 feet.
i assume oxygen?
Posted on 9/2/21 at 1:36 pm to SG_Geaux
quote:
I don't know, mine is clearly sucking a ton of air in one end and pushing it out the other. Seems like opening the top would seriously disrupt that flow.
like i said, for some it worked, for me and the older 20kw it didnt.
Posted on 9/2/21 at 2:05 pm to lsu777
I dropped some oil off to my uncle before I left town. I thought he was using it to change the oil. He told me no, that he needed to add oil. I didn't want to tell him it didn't sound good. Hopefully it lasts him a few more days.
Posted on 9/2/21 at 3:37 pm to lsu777
Naturally aspirated engines lose power with altitude. Less air pressure = less air flow through carburetor. Also cooling performance is reduced because fans are producing less mass flow, since the air is less dense. Not sure which is the limiter with either of them, probably the generator cooling across the board. Engine power is rarely the problem with generators, its almost always electrical cooling limits.
The cummins only has higher operating limits because the generator is more oversized for the kW its making. Basically more copper for the same amps = less heat. Basic rule of generators is the more money you spend, the more copper you get and thus the more durable machine you get.
The cummins only has higher operating limits because the generator is more oversized for the kW its making. Basically more copper for the same amps = less heat. Basic rule of generators is the more money you spend, the more copper you get and thus the more durable machine you get.
Posted on 9/2/21 at 5:02 pm to lsu777
Sincere thanks for everybody's contribution in this Thread. Your's Truly would have been whacked, if not for the insight herein.
I had a 7500kw Generac that the '16 flood got. Never changed the oil to my remembrance. Thing ran on occasion for years. Just bought another to replace it this Spring, and assumed I was covered. Needless to say I was shocked at reading this thread. Ran out, shut her down and checked the oil. Looked like gumbo roux, and was quite low. Drained, refilled and restarted with no problem. Will not be running as much stuff as I was. Will shut it down from 1-4 every day and top off the oil. Going get some 10w30 in the morn; 5w should be good till then. Thankfully my gen was on the east side of the house, and caught evening shade, or it would have likely burned up. I'll nurse that baby and be glad if it holds up.
Again, THANK YOU ALL! Best Site on the Inet!
PS...there were fine metal shavings on the bottom; freaked me out.
I had a 7500kw Generac that the '16 flood got. Never changed the oil to my remembrance. Thing ran on occasion for years. Just bought another to replace it this Spring, and assumed I was covered. Needless to say I was shocked at reading this thread. Ran out, shut her down and checked the oil. Looked like gumbo roux, and was quite low. Drained, refilled and restarted with no problem. Will not be running as much stuff as I was. Will shut it down from 1-4 every day and top off the oil. Going get some 10w30 in the morn; 5w should be good till then. Thankfully my gen was on the east side of the house, and caught evening shade, or it would have likely burned up. I'll nurse that baby and be glad if it holds up.
Again, THANK YOU ALL! Best Site on the Inet!
PS...there were fine metal shavings on the bottom; freaked me out.
Posted on 9/2/21 at 5:17 pm to RCDfan1950
quote:
PS...there were fine metal shavings on the bottom; freaked me out.
Yea that isn't good. Hopefully now that you changed it, it will be fine and it was just from manufacturing process. If so should be less and less every time you change it
Posted on 9/2/21 at 5:27 pm to Jax Teller
quote:
I’m tired of excuses for companies like this. Oh everybody knows they suck. Really? Then they don’t need to be a company.
You’re the guy who controls that. You, the customer, stops buying the shite products, and the company goes out of business. Do you expect the nanny state to take care of this for you?
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