HELP - engine symbol with kW and downward arrow inside accompanied by STOP

[missydel]

Hi, really need some help diagnosing this problem. I have a 2021 New Holland PowerStar 75. The STOP symbol is on along with the engine symbol that has the letters kW and a downward arrow in the middle. I can not find anywhere what this means or how to fix it / get the symbols to go away. The symbol came on out of nowhere and the tractor has been running completely fine ever since. I did notice that the coolant reservoir tank was empty and added some coolant to it, the radiator was practically full and I topped that off as well but that did not fix the problem. I also noticed that the tube connecting the two doesn't have any fluid in it so I thought I might have to bleed some air but I also can't figure out where the bleed screws are or how to do this (if this is the problem, I have no idea) - please help asap, we just had a fire and need to sell the tractor to keep us afloat but want to fix this problem before selling it in order to get the max price. Thanks in advance! Attached is a photo of the dash.

 

[workinonit]

I assume that means "power down". Either voluntarily or it will handle it for you. You should have codes somewhere.

 

[EastTexCowboy]

I had a couple of NH tractors up until about 3 years ago and got rid of both. I think the STOP is indicating low oil pressure, but like a lot of the warning lights it could also mean something else. In any case, a STOP light usually means something critical. On the KW light, I think that's going to be tied to the reduced power mode. Sorry I'm not more certain but that's what I got and I gave the manuals to the new owners when I sold them. Your manual should have something on it or, as @workinonit said, you should have some codes set. Retrieving the codes may require someone with the diagnostic equipment to do so.

 

[missydel]

I assume that means "power down". Either voluntarily or it will handle it for you. You should have codes somewhere.

yes I believe it means the engine is reducing power for some reason, but I also can't figure out how to find the codes

 

[missydel]

I had a couple of NH tractors up until about 3 years ago and got rid of both. I think the STOP is indicating low oil pressure, but like a lot of the warning lights it could also mean something else. In any case, a STOP light usually means something critical. On the KW light, I think that's going to be tied to the reduced power mode. Sorry I'm not more certain but that's what I got and I gave the manuals to the new owners when I sold them. Your manual should have something on it or, as @workinonit said, you should have some codes set. Retrieving the codes may require someone with the diagnostic equipment to do so.

I did not get a manual from the previous owner & I can not find that specific symbol anywhere in any online manuals. I'm now trying to figure out how to view the code in the setup menu on the led screen. If you or anyone else knows how to do this I greatly appreciate any and all help.

 

[EastTexCowboy]

I did not get a manual from the previous owner & I can not find that specific symbol anywhere in any online manuals. I'm now trying to figure out how to view the code in the setup menu on the led screen. If you or anyone else knows how to do this I greatly appreciate any and all help.

I don't think you can view the codes from the menu. You're going to need some diagnostic equipment to read/reset the codes. There may be some aftermarket tools for it, but not that I'm aware. If you do find something the chances are it's going to be cost prohibitive for a one-time use. I think you're going to need to take it to a dealer or maybe check around for some independent mechanics that work on New Holland. I'm fortunate that I have a couple of independent mechanics locally that have the diagnostic tools and usually are a lot cheaper than a dealer but there doesn't seem to be a lot of those guys around. Maybe someone else here has a better suggestion.

 

[WM75Guy]

The Workmaster 75 service manual has a section on how to run diagnostics. If the PowerStars have anything like it for diagnostics you will need the manual. It is not something that is easily done.

 

[LouNY]

If you really want to you can access all codes and diagnostics, just be prepared;
New Holland Agriculture Self Repair | MyCNHi Store

Often you can find PDF copies of the service manuals for a reasonable price. I have had decent luck 4 out 5 have been good.

 

[5030]

Back to the used tractor and no manual fiasco. I would NEVER buy ANY used tractor without at least the owners manuals and record of maintenance. In my book, no manual or service notations mean a no sale and I've been there and did that in the past I might add.

Not sure why owners like to hoard manuals, manuals that they have no use for anyway.

 

[missydel]

I remembered I had made an account & registered the tractor online with new holland so I have access to the manual & maintenance history there. Still don't know what the error code means & now I have another problem of not being able to access the settings menu on the screen. I tried the directions in the attached photo as well as the directions on all the other pages in order to try to gain access to the settings menu and nothing works.

 

[missydel]

somebody in another forum said this "You went past the Regen cycle, now you need to have a service center reset it"

If anyone knows what this means could you please elaborate for me? Does this have to do with the DPF?

 

[missydel]

somebody in another forum said this "You went past the Regen cycle, now you need to have a service center reset it"

If anyone knows what this means could you please elaborate for me? Does this have to do with the DPF?

this is what that person said:

"Yeah, it's how the tractor cleans the DPF, I used to work at a Kubota dealership, and on kubotas with DPF, they have a button that cancels the Regen cycle because it scares most people, the tractor will smoke a lot while burning off the deposits, but if you hit that cancel switch too many times it will automatically lock the tractor in limp mode and only the factory diagnostics computers can reset it, Boatas will also lock you into Limp mode if you shut off the tractor when it is telling you to do a Regen cycle. I don't know if NH are the same. But most Diesel trucks with DPF are the same way"

"Yeah it sounds like it locked itself up. So it's forcing you to go to a service center"

 

[missydel]

UPDATE: So my tractor doesn't have a DPF

 

[5030]

Don't matter, it's still ECM controlled. Wy all my tractors are conventially injected.

 

[LouNY]

If it uses DEF it has a DPF, if it doesn't use DEF they will have a similar device called a DOC. DOC is a Diesel Oxidizing Catalyst, they rely on exhaust temperature to stay clean also, but with usually less problems then a DPF.It may need a dealer reset, or you may get lucky by disconnecting the battery for an hour or so. They both have temperature and pressure sensors.

 

[missydel]

found this in my manual

 

[LouNY]

Likely an exhaust senor has failed.

 

[workinonit]

Or, regen could have been canceled enough it won't try to regen again. I know you are trying to fix this yourself but I think you're out of luck. It probably needs to have a parked regen done by the dealer.

 

[EastTexCowboy]

I'm going to agree on probably having to take it to the dealer at this point. One of my NH tractors would let me do a manual regen but the other would not. I had some issues with it when it only had about 10 hours on it and ended up having to haul it back to them to get the parked regen done. The good news is, it could be worse. This should be a relatively quick fix if the dealer will get on it.

 

[5030]

Gotta love ecm controlled diesel engines....lol