High pressure unit is disabled - Robinair Cool Tech 34700Z Recovery, Recycling, Recharging

Typically this means you have sucked a bunch of air into the internal tank, from a vehicle that had a leak perhaps ?. Remove the front cover and locate the internal tank. Close the valve on the center hose connection, remove the hose and open the valve slowly and only partially. You should get a good rush of air (not refrigerant). Try it for about 30 seconds then reset the unit. Repeat if required until unit resets. Once reset the unit will purge its self to the correct pressure.

No rush of air ?, could be a bad high pressure switch, connections on the relay board or a wiring issue. If this doesn't work contact me [email protected]

If your machine is one of the bellow Model:- Robinair 34700Z / 347002K & 347112K series. just do the following, with POWER SWITCH OFF: - 1# Open front panel cover and verify the ISV tank is not overfilled. If full, carefully remove refrigerant manually from ISV tank by pressing tank valve. 2# verify if there is high pressure in the ISV tank. Purge excess air from the tank manually. (Open air purge hose from the ISV tank, then carefully press tank valve as needed to blow out excess pressure from the ISV tank)
After doing all above stapes and your problem still exist then replace air purge solenoid (Air purge solenoid located near the ISV tank and fixed with automatic air purge device). Hope this will solve your problem, if so please vote for it for farther help! Good luck

This is a common problrm of Robinair 34700Z / 347002k & 347112k series machine.so don't worry just do the following :- 1# Verify the ISV tank is not overfilled.if full,remove refrigerant manually from tank. 2# Verify if there is high pressure in the tank.Purge excess air from the tank manually.( Open air purge hose from the tank,then press tank valve as needed) 3#Check the high pressure switch for proper operation,if not then replace high pressure switch.Hope this will solve your problem, if so please vot for it

Is the message on screen " High pressure unit disable" ?

This is a common problem of Robinair 34700Z / 347002k

This is a common problem of Robinair 34700Z / 347002k & 347112k series machine.so don't worry just check the following :- 1# Verify the ISV tank is not overfilled.if full,remove some refrigerant manually from tank. 2# Purge excess air from the tank manually.( Open air purge hose from the tank,then press tank valve as needed to purge air from the tank) 3#Check the air purge solenoid & High pressure switch for proper operation.Hope this will solve your problem, Best of luck & vote for my solution

This is a common problrm of Robinair 34700Z / 347002k & 347112k series machine.so don't worry just do the following :- 1# Verify the ISV tank is not overfilled.if full,remove refrigerant manually from tank. 2# Verify if there is high pressure in the tank.Purge excess air from the tank manually.( Open air purge hose from the tank,then press tank valve as needed) 3#Check the high pressure switch for proper operation,if not then replace high pressure switch.Hope this will solve your problem

if the freon pressure is too high or too low there are two seperate pressure sensors that will disable the a/c clutch to prevent dammage to the compressor. You need to check (or have it checked, dangerous if you do not know how) the pressure on the high and low ports while you have you jumper wire in place and the a/c is running. PLEASE RATE MY solution as I am new on here, Thanks

This is a common problrm of Robinair 34700Z / 347002k & 347112k series machine.so don't worry just do the following :- 1# Verify the ISV tank is not overfilled.if full,remove refrigerant manually from tank. 2# Verify if there is high pressure in the tank.Purge excess air from the tank manually.( Open air purge hose from the tank,then press tank valve as needed) 3#Check the high pressure switch for proper operation,if not then replace high pressure switch.Hope this will solve your problem

For any Robin air problem please contact me on [email protected] Or call me +965 66880748. Thanks.