Troubleshooting TriPac APU Electrical Faults - ALT or ALf

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Welcome to our channel! In today's video, Ryan shows you know to troubleshoot TriPac APU electrical Fault with an ALT or ALf code.
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3 окт 2024

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Комментарии : 83

@andrewfish6900 4 года назад

Life lessons of being an owner operator!! Understand your equipment and do the work your self if possible it irritates me when the other day I watch a guy bring his truck in to have the TA to check his tire pressure that costed 60 bucks, and a few months later says he can’t make it lol. I don’t think they understand the 1000’s of dollars of lost revenue per year in labor cost when it’s so simple. Thanks Ryan and good job!!

@truckingandfixing 4 года назад

Thanks Andrew!

@aydarusjama4333 Год назад

Some drivers don't understand where you're coming from.

@TopUpLogistics 2 месяца назад

Try having company driver damage ground wire trying to fix a light that was working and cost $300 at a Pirate shop. Too many shops see an outside carrier in there home territory and see $$$

@jeremiahthomas2669 Год назад

Thanks for taking the time to do these videos this is what RU-vid is all about informative info

@truckingandfixing Год назад

Glad to help

@ausdlantein 2 месяца назад

Guao man i wish I found you in the road to check my APU

@truckinnuttz7038 3 года назад

as ive stated earlier. excellent video excellent information. however, theres a 3 amp fuse in the rear of the unit that can also be checked. thanks again. keep the videos coming.

@truckingandfixing 3 года назад

Thanks for the info!

@nikolairomanov3160 3 года назад

I've had some cheap alternators b4 had always alt problem, than I installed AC Delco CS130. Some modification require, one white wire goes to alt hot which goes to starter and to battery, 2nd white goes to the box to read voltage. It's all about diod board inside of alt. Do not buy cheap Alternator they do not stop charging the batteries. This is the catch. You need to replace volt regulator on ur old alt it will be like new if diot board is still good.

@slemus1832 3 года назад

God Bless You.... this video help me to find out and fix my issue with the alt code.... Thank You.... please keep posting videos.

@truckingandfixing 3 года назад

Glad it helped! 😄

@andrehall1067 4 года назад

Very informative, I was wondering if anyone else has had to clean out dielectric grease, I thought it would help keep the salt and slime of winter, out of the areas I applied it to. Now it's clean, wipe, repeat....

@billcoley4426 4 года назад

It will, but it's an ablative measure. If it's anywhere that's exposed to the weather, you just have to clean it out occasionally. Silicone grease can work well for weatherizing, and WD-40 is good for spots that you can't get to with grease.

@horaciomendoza647 3 года назад

I do the exact same thing

@faithman45 2 года назад

Is it possible for you to help me with my thermo king evolution apu that everything is working on it but I am having the alternator keep going up to 15.5v and then the apu shutsdown with red triangle and ALT code. I've done everything that you showed us on this video but none of those things were causing it please anything that you could think of would be greatly appreciated.I am a owner operator who has mechanical experience

@ahmedabdi2078 2 года назад

Thanks buddy I learned a lot from you. I really appreciate you doing this for us

@truckingandfixing 2 года назад

You are welcome! Glad it helps!

@roco2518 2 месяца назад

I had the yellow triangle and then red triangle,run for 20 minutes or so. I'd restart the APU and it would run for 20 minutes and shut off. I was told by a thermo king dealer that i needed a new a/c compressor. Or freon is low. I let it go for some time. A friend of mine worked for that thermo king. And quit. I asked him what's the deal. He said 90% of the time, it's a ground or loose connection issue. I spent couple hours taking connectors apart, cleaning them, and reconnecting. After all connection cleaning, alternator connections, and major ground to frame, it fires up and works just fine

@bettyperedaherrera 7 месяцев назад

My 2016 thermo king died completely, no ppwer at the apu, the hour meter, notnpower in the fuse card under the bunk and no power at the controller. If this happens to you, check the 200Amp fuse at the battery. It's under a blqck square rubber cover. About $7 at autozone. It's a 13mm nut. Problem fixed

@sharitaharvey4962 Год назад

Thanks

@horaciomendoza647 3 года назад

I THINK YOU ALREADY FIXED MY PROBLEM I DID PUT SOME OF THAT GREASE IN THAT PARTICULAR ALTERNATOR FITTING

@jamesm.ferrari4631 Год назад

That 120amp version that gave him trouble likely is TKING 45-2671 or similar. And usually the issue is to connect the additional F terminal to ground - if your application doesnt have or has a different Load controller. 😎

@TopUpLogistics Месяц назад

Hello , I’m getting high voltage 41 V on the computer board when I check the SEN. Where is the ground from truck battery?

@GREGreg1 3 года назад

Hi I had no idea what’s cozying high voltage alarm to go on in my inverter. And guess what freaking dielectric grease in my alternator load and sens plug.😃😃😃 thank you for help.

@horaciomendoza647 3 года назад

Hess what. I just put some of that crap in mine now my engine won’t start. Will be cleaning it this weekend

@Schiftky 19 дней назад

Got up under there and the ground is just caked w/ crudd. If you can clean the contacts with ur eyes closed you save yourself a world of hurt. Flip truck on side if helps. Thx 4 vid

@TruckerRo 4 дня назад

Where is the ground wire?

@Schiftky 3 дня назад

@@TruckerRo the neg wire that comes off and bolts directly to the frame. There's 4 or 5 other connections hooked on the same lug/bolt including a grnd strap. There

@MacMilly707 3 года назад

thanks ryan. great work.

@truckingandfixing 3 года назад

thanks!

@nalvarez3505 Год назад

hi Ryan i have the same apu run for 5 to 10 minutes and shut down the alternator is pushing 13.9 volts, i just did apm with om parts and still doing that all fuses are good fans both working good, you have idea what else could be?

@aldainsmith1866 2 года назад

Hey Ryan I have the same problem. Now I ran a wire to the battery and it's running now .but it's not charging the battery

@Grumpy_Prime 4 года назад

There is update for the red 250 amp fuse. They have an in-line fuse. That won’t corrode from the crap they put down on the roads in the winter. Need to ask Thermo King about it. It stopped all my problems. That fuse can also get loose from going down the road. The in-line fuse is hardwired in.

@Jake-ui9ih 4 года назад

Where you been Mercer hand?

@Grumpy_Prime 4 года назад

Still driving for Mercer. Stopped doing videos. Might start again this fall.

@Jake-ui9ih 4 года назад

The Florida Flatbedder glad to hear. Enjoyed your insight. Be well!

@truckingandfixing 4 года назад

Thanks for sharing!

@khansworld4118 Месяц назад

Im getting code 35 Run relay circuit on my tripac APUA... any help will b much

@z-zociety-family4045 2 года назад

Great great video sir!👍👍👍

@truckingandfixing 2 года назад

Thank you!

@jimgraham1404 14 дней назад

Thank you sir

@waqasuddin3222 2 года назад

Hey I think you’re best person for APUs. I’m having issues with my comfort pro. Every time I turn it on it turns off leaving me with an oil code on the control unit. I have replaced the oil pressure sensor. The APU control unit. The wire. But the issue is still there and does not go away. Would you have any idea on what’s going on with this unit and where the issue might be? Your response is much appreciated

@alhussamalymani6887 Год назад

Thank you it’s helpful video

@michaelchason9170 3 года назад

Thank you

@jayw8768 2 года назад

Your thermoking must’ve been trying to make money. Mine sold me the 120A alternator a few years ago. I called back when it wouldn’t work with my apu and a tech told me how to run a jumper wire from one bolt to another on that 120a that derates it to half its amperage. Worked for years til I started getting Alt codes recently

@carlosaguirre1313 4 года назад

Ryan Good afternoon Good video , learned a lot. Regards Carlos Aguirre Quito Ecuador South America 2 September 2020 16:30 hours

@truckingandfixing 4 года назад

Thanks Carlos as always!

@fillmoore5780 10 месяцев назад

Hi I have a problem with my tripac the starter will turn over half way when the apu in standby mode if I put the tripac ic AC mode it start up right away

@brandondunn8397 Год назад

Ive got the "legacy" tripac. Keep getting random run fine, then bat, sometimes alt. Can wiggle wires in battery box and it will work. Drive after usijg it and go through it all again. I think my battery cable terminal is bad and maybe the alt sensing wire where it connects to battery also. The terminals arent hard to change are they? Also the cable make like a hard U from where it comes in backside of battery box to the pos post of battery. Guess i should move it to another battery so its straight-ish?

@ricardotrujillo5106 2 года назад

Great video. Got a question, I’m getting only 7 volts to the compressor so it won’t click in, any idea what could it be before getting under or into it, thanks

@brucemalcolm8401 7 месяцев назад

Hey Ryan, what size wire do I need to connect directly from battery to sense voltage wire? There is no sense voltage at the connector on my APU. Fault showed low voltage or high voltage shut down.

@龙-g3q Год назад

Maybe you now what's problem me Apu? When I start apu the panel,is not power and not works light panel,I check all fuse,fuses is working

@ofilippov 2 года назад

Hello Ryan. Can you give me an idea of what could be wrong. It seems that alternator is not charging when AC compressor is on. When AC not working - everything seems to be working good.

@joehunt4506 2 года назад

Mine throwing the AL upside F and my inverter is only showing 12.6 instead of 14 volts

@toddbaker4407 Год назад

Ok replaced my alt and all i get is bunk fan comes on runs for a few green snowflake never goes solid just blinks and tested all connections and replaced ground wire and checked fuses but after a few mins of the bunk fun running i get a red triangle alt fault unit never tries to start any ideas

@merives2263 Год назад

Will the trucks low battery cause an alt light on the apu?

@patrioprotection2597 9 месяцев назад

I have a tri pac evolution it turns on and run for about 5 minutes then turns off for a minute or 2 and turns back on and does this same thing all the time it is on. Is this normal, called thermal king they did not have and answer thanks.

@BaljitSingh-zo5us Год назад

My apu not start up pump clicking and alt sigh comes on i change alternator still same not crank alt sigh Any suggestions

@fellscri2010 3 месяца назад

I’ve been suspecting that this is what’s going on with my apu too it comes on for a few minutes then turns right back off I’ve done swapped out alternators made sure it was the right volts cleaned all the grounds made sure there wasn’t any wires shorting out belts tight and I feel like I’ve done everything accept bust out the volt meter and check the wire harness I’ll check that first thing tomorrow morning and cross my fingers , these things are too damn tempermental

@fellscri2010 3 месяца назад

Ok after trying your method of troubleshooting I was able to get that harness all cleaned up and reconnected and old faithful seems to be running pretty good at the moment thanks for the video sir !!! 06-16-2024

@KerryPogorzelski Год назад

Hey Ryan, I am getting 0 volts at the sen test port. It's a 2014 Peterbilt with TK Evolution APU. Any ideas???

@rigobertohernandez2524 6 месяцев назад

I fixed my apu i shut off the valves cause it outa pressure om.thw water pump and irt starts leaking a year later I replaced 2 already so.i open them I'n summer or when.ever I go south

@carlosmilton01 2 года назад

Hi my names is Carlos I just buy 2014 cascadia is comen with the tri pack apu so I don’t know how can stared or check if you can help me thank you so much

@kodjokoboe2587 4 года назад

Hi, Thanks for the video. My Thermoking APU once it kicks on will not stop, unless physically turned off. The invertor will be reading 13.4V. Current at 248Amp. I took it to three different Thermoking dealership got robbed but the problem still there. please help THanks

@michaelchason9170 3 года назад

Mine don't print fault code, just goes out when time to start. Fan runs but Apu doesn't start

@JoseSantiago-su6ul 3 года назад

My tripac evolution turn on & turn off so much , in one minute turn on & off like 4 time . Some time turn off and yellow triangle pop up with no code . Do you have a idea what can be ?

@norvinguevara4944 3 года назад

I WAS GETTING THE ALT CODE. I THOUGHT IT WAS THE ALTERNATOR SO I REPLACED IT. IT STILL DOES THE SAME THING IT RUNS FOR 2 TO 3 MINUTES AND IT SHUTS OFF GIVING THE SAME ALT FAULT CODE. WHAT COULD BE WRONG?

@anyimiguel 3 года назад

SAME HERE

@gerrybenzi 3 года назад

did you fix it?

@jimmysmith773 2 года назад

Same problem

@michaelbritton2331 3 года назад

hello Ryan I have a tripac with 120 amp I can't get thing to make over 12.6 volts.i had the alt. tested and makes 14.2 volts on the bench.i looked at the wires at a lost help

@truckingandfixing 3 года назад

Check the test ports in the panel, specifically the SEN and see what the voltages is. You may not get the sense voltage to the alternator.

@johnmclaughlin757 2 года назад

I’m getting the volts on mine but my control panel in the cab has no power

@MoisesMG-zj7ls Год назад

Do you fixed?

@davidthompson184 2 года назад

My tripac APU surges briefly, which restarts the inverter which is frustrating. Any idea why it surges?

@truckingandfixing 2 года назад

Does it surges all the time? it could be the primary fuel filter.

@davidthompson184 2 года назад

@@truckingandfixing doesn’t surge all the time. It surges randomly and it causes the batteries to fluctuate in voltage. I’m guessing the alternator?

@johnholbert214gmailc 3 года назад

Do you still have the alternator 45-2671

@truckingandfixing 3 года назад

Don’t remember if I have scrapped it yet! On the road today.

@jbone765 4 года назад

Hey Ryan! Quick question. Do you know how to install a Tripac APU on a truck? I have one that was taken off another truck but just can’t find somebody who can install it on my truck. I called ThermoKing and they said they would charge $3,000 dollars to install!