Question about Robinair Cool Tech 34700Z Recovery, Recycling, Recharging

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I'm in afghan and I have a robin air cool tech 34788. It's take a long time to the clear the line and and a long time to recover plz help me out

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I think your machine is working normal! Robiaair 34788 is high bred technology machine, you can't forse on it to fast recover! It will compleate the process it self. However if you still think this is not working normal you can check low/high side hose & coupler for any block.
Hope this will be helpfull to you. Good luck

Posted on Aug 26, 2010


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Robinair 34788 keeps overcharging the isv how do i fix this issue or how do i find out whats wrong

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I have a robinair 34788 and when i tunr it on it shows a massage "hi pressure "

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After doing above stapes and your problem still exist then you have to replace PCB relay board.
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May 13, 2011 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

Cool Tech 34788 "air purge not working"

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Jul 06, 2010 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

Hi. We've got a CoolTech 34788. Whenever the machine tries to purge air from the tank, we are consistently getting a message saying that the "Air purge timed out". The internal tank shows ~10 lbs of r134a....

It's sound like normal. However when thes message come again you just press Stop/No key to terminates this function. Press Recover & see if the machine is going to recovery after self clearing. If it is then you can continue to work. Hope this will help you best of luck!

Jul 01, 2010 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

I have a a modle 34788 robinair cooltech my day shift messed it up is there a way to fix my problim? it wont recover at all. all other functions work (with the lines off i can get it to vacumme)when i hook...

Please check 1# The compressor suction line with a vacuum gauge & make sure it has 13" HG of suction while you active recover. if not then you need to replace the compressor. 2# Check spin-on filter O rings are fixed properly it may missing or lose, also check filter capacity (amount of refrigerant you have been recover sinc last filter change.every 68KG or 150LBS of recovery you must change spin-on filter)

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1 Answer

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If the clearing the filter screen will not go off then it is sure that compressor is not good.please check the compressor with vacuum gauge & make sure is has 13" HG of suction.

Aug 12, 2009 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

Robinair 34788 not pulling a vacuum

It's seems to be problem with your unit relay board,vacuum pump or pressure transducer.Most of Robin air 34788 machine having same problem.You can try as follows 1# Open vacuum pump oil filling cap to release extra pressure from pump.2# Replace new relay board & follow the on screen message(do not skip any option).3# Check pressure transducer is working properly.I hope this will help you.

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