A/C help on Thermoking

lilillill · May 7, 2019

Houstontsl said: ↑

Do you know what size lines they use? I’m needed to replace them starting to ware
Click to expand...

#6, #8 and #10

Thermoking carries the stuff to do them but you'll probably get a better price at a dedicated AC shop that does busses and motorhomes.

You can reuse the fittings and spacer clips but you'll need new o-rings and clamps. The crimper for pex tubing will crimp the clamps and can be bought at Lowes or Home Depot.

lilillill · May 7, 2019

Goodyear Galaxy thinwall hose.

shadow21 · Jun 29, 2019

Kansas said: ↑

How often does the AC cycle (kick on and off, on and off)? If its doing it rapidly, every 20 or 30 seconds or even faster. Thats a give away its just low on freon. The compressor should stay engaged closer to a minute, thats just a ball park estimate.

You can add freon yourself easily, and itll cost you under $50 the first time.

Go to any autoparts store on planet earth, and buy ya one of these.

Select a Part – JCWhitney

If you can find one with a smaller 1lbs bottle, get it instead of the larger size. I doubt youll need any thing more than about 1/2 a lbs. Its a pretty small system. And, you can always dump the left over into your trucks AC system. Save the refill tool that comes with the kit, you can use it over and over again. And then youll only need to buy a single bottle of freon next time you need to refill it. Make sure you get the tool that has a gauge built into it, just like the one in that photo. It gets you very close to where your system needs to be, and you dont have to drag around an actual set of freon gauges.

Also, when you buy that kit. Youll notice the can of r134a will have all kinds of additives in it. Die leak detector, leak stopper, oil etc etc. It is ok to add that stuff the first time you do this, it might even stop the leak if its minor. But, next year when you need to do it again. Buy plain/straight r134a. They usually keep the plain stuff behind the counter, and its actually cheaper. You dont want to keep adding that extra stuff over and over, thats bad.

Youtube the term " Arctic Freeze how to video " they have just the video you need to see, it shows you just about everything you need to know. Youll need to use the low side port, which I believe is always the larger of the two fittings, the dispenser tool fitting should only fit on the low side larger port.

Probably the most important advice I can give you. Add a little freon at a time, by pulling the trigger on the tool. Listen to the AC compressor, you should notice the time between on/off cycles gets longer and longer. Climb inside the truck often to verify the air is actually getting colder too. If you add too much, it will stop cooling all together, and youll have to let some out. Stop filling often and read the gauge. Again, do not over fill, more is not better. Less is more.

As the freon enters the system youll feel the can of freon start to get cold. Thats good, that means its working and entering the system. If it gets too cold and ices over in your hand it will slow or stop entering the system as pressure becomes less. You can dip the can in a bowl of hot water to re warm and raise pressure again. I honestly doubt youll need to do that with the small amount of freon your putting in, but just in case.

Also, set the Tri Pak to its coldest AC setting (50F) and turn the fan on its highest setting while your adding freon. This ensures its working at its max cooling cycle.

Oh, and btw. My TK unit rubbed a hole in one of the AC condenser lines (hanging on the back of the cab) and dumped 100% of its freon. The unit never shut off, and the compressor would cycle about every two seconds. It never shut itself off, and never gave a code. It just continued working itself to death.
Click to expand...

I sounder ifvu give classes cause you explained this better then anyone I’ve seen explain anything. If don’t know how after this there is no hope.

shadow21 · Jun 29, 2019

Kansas said: ↑

How often does the AC cycle (kick on and off, on and off)? If its doing it rapidly, every 20 or 30 seconds or even faster. Thats a give away its just low on freon. The compressor should stay engaged closer to a minute, thats just a ball park estimate.

You can add freon yourself easily, and itll cost you under $50 the first time.

Go to any autoparts store on planet earth, and buy ya one of these.

Select a Part – JCWhitney

If you can find one with a smaller 1lbs bottle, get it instead of the larger size. I doubt youll need any thing more than about 1/2 a lbs. Its a pretty small system. And, you can always dump the left over into your trucks AC system. Save the refill tool that comes with the kit, you can use it over and over again. And then youll only need to buy a single bottle of freon next time you need to refill it. Make sure you get the tool that has a gauge built into it, just like the one in that photo. It gets you very close to where your system needs to be, and you dont have to drag around an actual set of freon gauges.

Also, when you buy that kit. Youll notice the can of r134a will have all kinds of additives in it. Die leak detector, leak stopper, oil etc etc. It is ok to add that stuff the first time you do this, it might even stop the leak if its minor. But, next year when you need to do it again. Buy plain/straight r134a. They usually keep the plain stuff behind the counter, and its actually cheaper. You dont want to keep adding that extra stuff over and over, thats bad.

Youtube the term " Arctic Freeze how to video " they have just the video you need to see, it shows you just about everything you need to know. Youll need to use the low side port, which I believe is always the larger of the two fittings, the dispenser tool fitting should only fit on the low side larger port.

Probably the most important advice I can give you. Add a little freon at a time, by pulling the trigger on the tool. Listen to the AC compressor, you should notice the time between on/off cycles gets longer and longer. Climb inside the truck often to verify the air is actually getting colder too. If you add too much, it will stop cooling all together, and youll have to let some out. Stop filling often and read the gauge. Again, do not over fill, more is not better. Less is more.

As the freon enters the system youll feel the can of freon start to get cold. Thats good, that means its working and entering the system. If it gets too cold and ices over in your hand it will slow or stop entering the system as pressure becomes less. You can dip the can in a bowl of hot water to re warm and raise pressure again. I honestly doubt youll need to do that with the small amount of freon your putting in, but just in case.

Also, set the Tri Pak to its coldest AC setting (50F) and turn the fan on its highest setting while your adding freon. This ensures its working at its max cooling cycle.

Oh, and btw. My TK unit rubbed a hole in one of the AC condenser lines (hanging on the back of the cab) and dumped 100% of its freon. The unit never shut off, and the compressor would cycle about every two seconds. It never shut itself off, and never gave a code. It just continued working itself to death.
Click to expand...

Kansas said: ↑

How often does the AC cycle (kick on and off, on and off)? If its doing it rapidly, every 20 or 30 seconds or even faster. Thats a give away its just low on freon. The compressor should stay engaged closer to a minute, thats just a ball park estimate.

You can add freon yourself easily, and itll cost you under $50 the first time.

Go to any autoparts store on planet earth, and buy ya one of these.

Select a Part – JCWhitney

If you can find one with a smaller 1lbs bottle, get it instead of the larger size. I doubt youll need any thing more than about 1/2 a lbs. Its a pretty small system. And, you can always dump the left over into your trucks AC system. Save the refill tool that comes with the kit, you can use it over and over again. And then youll only need to buy a single bottle of freon next time you need to refill it. Make sure you get the tool that has a gauge built into it, just like the one in that photo. It gets you very close to where your system needs to be, and you dont have to drag around an actual set of freon gauges.

Also, when you buy that kit. Youll notice the can of r134a will have all kinds of additives in it. Die leak detector, leak stopper, oil etc etc. It is ok to add that stuff the first time you do this, it might even stop the leak if its minor. But, next year when you need to do it again. Buy plain/straight r134a. They usually keep the plain stuff behind the counter, and its actually cheaper. You dont want to keep adding that extra stuff over and over, thats bad.

Youtube the term " Arctic Freeze how to video " they have just the video you need to see, it shows you just about everything you need to know. Youll need to use the low side port, which I believe is always the larger of the two fittings, the dispenser tool fitting should only fit on the low side larger port.

Probably the most important advice I can give you. Add a little freon at a time, by pulling the trigger on the tool. Listen to the AC compressor, you should notice the time between on/off cycles gets longer and longer. Climb inside the truck often to verify the air is actually getting colder too. If you add too much, it will stop cooling all together, and youll have to let some out. Stop filling often and read the gauge. Again, do not over fill, more is not better. Less is more.

As the freon enters the system youll feel the can of freon start to get cold. Thats good, that means its working and entering the system. If it gets too cold and ices over in your hand it will slow or stop entering the system as pressure becomes less. You can dip the can in a bowl of hot water to re warm and raise pressure again. I honestly doubt youll need to do that with the small amount of freon your putting in, but just in case.

Also, set the Tri Pak to its coldest AC setting (50F) and turn the fan on its highest setting while your adding freon. This ensures its working at its max cooling cycle.

Oh, and btw. My TK unit rubbed a hole in one of the AC condenser lines (hanging on the back of the cab) and dumped 100% of its freon. The unit never shut off, and the compressor would cycle about every two seconds. It never shut itself off, and never gave a code. It just continued working itself to death.
Click to expand...

I wounder if you give classes. Cause you explained this better then anyone. An u could fallow everything . If one can not do this after this explaintion there is no hope. And Thanks
It seems the two I be owed are constantly breaking down is this normal ? Or just bad luck. I have changed the fuel pump on here three times in n teo years . An mine seems to run loud and when ac on loud in truck.

Trucker2211 · Jun 22, 2020

leftlanetruckin said: ↑

Assuming the unit is out of warranty, why not try to fix it himself?
I thought that is what these forums were for after all....
Checking the level of the freon, then checking for 12v at the compressor is hardly brain surgery IMHO.
Between checking the freon levels, checking for 12v at the compressor, and using jumpers to check the switches, I think a guy can do a lot on an ac system.
Just my .02 though I guess.

Martin
Click to expand...

Amen, that’s the difference between staying in business and filing bankruptcy.

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