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

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I have 34788 machine i need to transfer 134a into. do i need to change tank or transfer into it?

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Posted on Jan 02, 2017

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mhkamran
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SOURCE: ROBINAIR 34788 NO MANUAL REFILL

You may did not open the tank valve before you press fill key! please try as bellow:
Connect tank fill adapter to source tank & open tank valve then make the tank up side down,now press tank fill key. screen will change to checking source tank for 30/60 sec. then start filling.
If you try as above direction & still the problem exist,it may need to replace or rebuild tank fill solenoid.

Posted on Jul 14, 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


Robinair 34788 Set Up Operation Part #1 - YouTube

? 6:05
www.youtube.com/watch?v=XW8o5tahLpE
Aug 30, 2013 - Uploaded by OTC TOOLS This video takes the viewer through the entire Set Up and Operation of the 34788. The Cool-Tech 34788 ...

Aug 26, 2015 | Robinair Measuring Tools & Sensors

1 Answer

Machine won't recover, it gets stuck on "clearing in progress" Also won't vacuum, it says that "pressure exist press any key to continue" Your help would be greatly appreciated


I had a similar problem with a Robinair 17800b. The machine got stuck in Clr or (Clearing) while changing from R-12 to R-134a. If the tank (R-12 or R134a) does not have at least 10 pounds of refrigerant in the tank before you change to another refrigerant, the machine will stay in the clearing process. I called tech support and they walked me through a process that resets the machine. The reset involves entering a code while in r-12 mode, then removing all hoses and switching the switch to R-134a mode and entering another code. The call to the tech line took about 5 mins. The number I called 1-800-822-5561.

Aug 18, 2015 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

Why can u not fill my isv it will try but shuts off instantly?


If it's a replaceable tank it likely has a check valve to prevent backfilling. If the tank is designed to be refilled you may need a different hose for filling it, check the manual.

Aug 07, 2014 | Robinair Cooltech 34788 R134a Automatic...

1 Answer

WHERE IS THE FILL SOLENOID


If you have model : 34788 or 34788-I please see the attached picture to identify tank fill solenoid. 37b7cee0-d212-4295-9e21-ab8d41e52789.jpg

Jun 25, 2014 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

How to replace tank fill solenoid on robinair 34788


No, you cant remove tank fill solenoid until close low (Blue) and high (Red) side valve on ISV tank (Internal storage vessel). see attached picture to identify Tank fill solenoid. 39b3bb9f-14fe-4040-a186-3a3a23d2848e.jpg

Jun 18, 2014 | Robinair Cool Tech 34700Z Recovery,...

2 Answers

I'm Archie i've a Robinair 34988 just five days old and having problem with it. It keeps displaying HIGH PRESSURE (HIGH PRESSURE RESET). whether you try to vacuum,recharge, refill or anything...


This is a common problem of Model: 34788, 34788-I, 34988, AC34788, GE48800 etc.
You need to replace air purge solenoid (Air purge solenoid located on top of the ISV tank, if you open front panel cover then you can see it on top of the tank).
After doing above stapes and your problem still exist then you have to replace PCB relay board. Just claim for warranty (Air purge solenoid and PCB relay board) from where you bought the machine.
Hope this will help to solve your problem, if so please vote for it for farther help! Good luck

May 16, 2011 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

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


This is a common problem of Model: 34788, 34788-I, 34988, AC34788, GE48800 etc.
You need to replace air purge solenoid (Air purge solenoid located on top of the ISV tank, if you open front panel cover then you can see it on top of the tank).
After doing above stapes and your problem still exist then you have to replace PCB relay board.
Hope this will solve your problem, if so please vote for it for farther help! Good luck

May 13, 2011 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

Robinair cooltech 34788 scale error reset


You may overfill the ISV tank. #1 Open front cover & close LIQUID valve on the ISV. #2 Disconnect LIQUID hose from tank,then open tank liquid valve (which you close earlier) to reduce some refrigerant manually from the ISV tank. #3 after reduce refrigerant from tank, re-connect everything & switch on the machine. #4 If you still have the same problem then you have to re-calibrate the scal. I hope this will help you

Nov 04, 2010 | Robinair Cool Tech 34700Z Recovery,...

2 Answers

ROBINAIR 34788 NO MANUAL REFILL


You may did not open the tank valve before you press fill key! please try as bellow:
Connect tank fill adapter to source tank & open tank valve then make the tank up side down,now press tank fill key. screen will change to checking source tank for 30/60 sec. then start filling.
If you try as above direction & still the problem exist,it may need to replace or rebuild tank fill solenoid.

Jul 14, 2010 | Robinair Cool Tech 34700Z Recovery,...

1 Answer

Cool Tech 34788 "air purge not working"


Please check ISV tank air purge (pressure) transducer & 12V DC discrete Solenoid ( both lacated on top of ISV ), it sounds like defective!
NOTE: Never use Automatic Mode till you are not very familiar with this machine

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

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