Robinair Trouble Shooting Tips for 17700


	Choose from the following issues to view the related trouble shooting tips.

	1. Compressor does not start or stops prematurely 2. Runs a short time, but does not complete recovery 3. Runs but won't shut off 4. No power when Main Power switch is on - no display showing 5. Audible tone sounds during refrigerant transfer 6. Refrigerant does not flow 7. Vacuum pump runs, but low side gauge does not register an appropriate vacuum 8. Error/Message Codes


	*RECOVERY OPERATION*


	1. Compressor does not start or stops prematurely

	Power cord not plugged in or no power at plug
	Check circuit for power

	MAIN POWER switch is off
	Turn of switch

	FULL message on digital display
	Change tanks. See Installing the Tank.

	HI-P message on digital display
	Be sure tank valves are open and hoses are properly connected to the tank or check the scale calibration. See CHECKING THE SCALE ACCURACY.

	CH-F message on digital display
	Remove and replace the filter-drier. See REPLACING THE FILTER-DRIER and be sure to pull a vacuum

	Faulty components
	Call service center


	2. Runs a short time, but does not complete recovery

	Tank valves closed
	Open both valves and be sure hoses are properly connected to the tank

	Manifold valves closed
	Open both valves

	Faulty components
	Call service center


	3. Runs but won't shut off

	Oil drain valve open
	Close the valves

	Leak in vehicle system
	Locate and repair all system leaks

	Hoses are not properly connected to the vehicle
	Check hose connections

	Faulty components
	Call service center


	*RECHARGING OPERATION*

4. No power when Main Power switch is on - no display showing

	Unit unplugged
	Plug the unit into a power source

	No power at wall outlet
	Locate the problem with the outlet or change outlets.


	5. Audible tone sounds during the refrigerant transfer

	Tansfer stopped or too slow
	Start the A/C system and pull the remaining refrigerant into system. See RECHARGING THE A/C SYSTEM or be sure the blue hose has access to the tank

	Refrigerant supply empty
	Add refrigerant to the tank

	Blue LIQUID tank valve closed
	Open the blue LIQUID tank valve


	6. Refrigerant does not flow

	Refrigerant supply empty
	Add refrigerant to the tank

	Flow restriction
	Check all connections on the A/C system (the 17700A/17001A should have adapters on both the low and high side fittings and the couplers on the 34700/34701 should be open), or Check the blue hose connection at the tank's blue valve - be sure it is getting access, or Check the tank's valve - it should be open, or Be sure the A/C system has had a minimum of 15 minutes of vacuum


	7. Vacuum pump runs, but low side gauge does not register an appropriate vacuum

	Pump oil contaminated
	Flush and change the vacuum pump oil

	Charging line loose
	Check connections

	Manifold leaking
	Check connections

	Low side valve closed
	Open low side valve

	3/8" hose improperly connected to pump
	Check connections


	8. ERROR/MESSAGE CODE

ADD	There is less than six pounds of refrigerant in the tank. Add refrigerant to the tank. See "Adding Refrigerant to the Tank."

CAL	The scale is out of calibration. Calibrate the scale.

CH-F	The unit has recovered 300 pounds of refrigerant. Press SHIFT/RESET and FILTER at the same time, then replace the filter-drier.

CH-P	The vehicle's A/C system has less than 25psi. Do not attempt recovery if the A/C system has no refrigerant. Check for restrictions at access fittings. Check to be sure that manifold valves are open. To continue, press HOLD/CONT.

CL-L	The low side clearing routine is in progress. This occurs when you press RECOVER and can last up to four minutes.

CLR	The unit is in the self-clearing process.

CON	The vacuum pump will run continuously. Press HOLD/CONT to stop.

CPL	The specified cycle function (recovery, evacuation, charging or adding refrigerant) is complete.

FIL	The filter-drier changeout is in progress.

FULL	The refrigerant recovery tank is full. Replace the tank.

HI-P	The discharge pressure is above 435 psi. Check to be sure the unit tank's red valve is open.

OIL	The vacuum pump has run for 10 hours. While the OIL message is displayed, press SHIFT/RESET and ENTER at the same time to reset the timer. Then change the vacuum pump oil.

SCAL	The scale is damaged, disconnected, out of calibration or overloaded (it cannot exceed 80 pounds or 36.3 kilograms). Calibrate the scale

U-HI	There is positive pressure on the vacuum pump. Press SHIFT/RESET and then RECOVER to remove the pressure, than continue the evacuation procedure.

99LB	The maximum amount displayed during recovery is 99 pounds. Press SHIFT/RESET to clear the display.


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	Customer Service: 800-628-6496 / Technical Service: 800-822-5561
	Robinair / SPX Corporation / 655 Eisenhower Drive / Owatonna, MN 55060


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