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

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I have a robinair cool tech 700 not recovering

I went to use my machine yesterday and I hooked it up and hit recover. Waited about 10 minutes and nothing happened only an occasional clicking noise. Any ideas?

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You Need to replace your unit compressor.Because may be you did not change spin-on filter after recovering 150 LBS of refrigerant.

Posted on May 19, 2009

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1 Answer

Robinair model 34288 will not stop recovering


what is the pressure reading on your guages? if it is below 0 if so the vacuum pump should kick on. if the vacuum pump keeps turning on and off check the software version on the machine if it is not 3.09 or 3.11 the software needs updated contact your local robinair service center. if it is not the software then the recovery solenoid may be sticking closed and will need replaced.

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You can try to get it only from any Robinair service center, No one can post any Robinair service manual at web site because of copyright! If you wish you may check my other solutions which i've post earlier for the same problem.
Yellow wire marked with 67 is a ground wire & you can hook-up anywhere in machine body

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1 Answer

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It's not clear that you machine is doing recover or not! If the machine is doing recover theh follow the bellow steps.This is a common problem of Robinair 34700Z / 347002k

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1 Answer

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It is not clear which model of robinair machine you have! However your machine need to re-calibrate the scale.

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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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Which model of Robinair machine you are using ? If it's 34700Z then follow as: After Recover & Vacuum, Press "CHARGE" button on contro panel & add the amoun you want to charge then press ''YES" button.

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1 Answer

Wont recover


Please Check the following:1# Press recover & fix a vacuum gauge on your machin Compressor suction port & monito the gauge is going up to13"HG suction,if not then you may need to replace the compressor.2# Check spin on-filter weight(total amount of refrigerant you have been recover since last filter changr,Max.filter Capacity is 68KG/150LBS) if it's more then max.cap. replace the spin on-filter.3# Check low side clearing sensor (Vacuum sensor) for proper operation.4# Also you can try to reset (clockwise & counter clockwise) automatic expension valve for any block of refrigerent flow.

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