Specifications

Model 17800B Recovery/Recycling/Recharging Unit

EVACUATION OPERATION

Vacuum pump will not start

Problem: Power cord is not plugged in or there is no power at plug

Solution: Check circuit for power

Problem: The pressure in the A/C-R system is too high

Solution: Recover the remaining A/C-R system charge

Problem: “U-HI” message on digital display

Solution: Recover all refrigerant before pulling a vacuum

Problem: Vacuum time not entered

Solution: Program the required time for vacuum

Vacuum pump runs but low side gauge does not register an

appropriate vacuum

Problem: Low side valve is closed

Solution: Open the low side valve

Problem: Pump oil is contaminated

Solution: Flush and change the vacuum pump oil

Problem: Hose connection is loose or manifold is leaking

Solution: Check connections

CLEARING OPERATION

“CLR” displays on screen

Problem: Pressing HOLD/CONT does not clear the display

Solution: Slide the lockout panel on the back of the unit to expose the fittings for

the correct refrigerant type, connect the appropriate hoses and perform a

clearing procedure (see Step 12 in Set Up Instructions)

Troubleshooting