MAHLE RTI TX200 - Manual (Page 14)

Page 13
PROBLEMS & SOLUTIONS
On rare occasion the TX200 may seem to be performing differently or not at all. Experience
has shown that varying operating conditions can affect the performance characteristics of
the TX200. The temperature of the vehicle A/C System will affect how the TX200 performs.
Following are typical problems with explanations of the possible cause and solution.
PROBLEM: My TX200 was recovering refrigerant and the Compressor On light went
OFF which indicates the A/C System should be in a vacuum. However, the
Manifold Gauge still shows a pressure.
SOLUTION Determine if the Condenser Cooling Fan is still running. The fan can be
heard and air flow through the TX200 can be felt. If the fan is running, the
high pressure switch has shut the TX200 off due to an over-pressure
condition.
Turn the Power Switch OFF and then ON. The condition may correct itself.
This over-pressure will typically be due to excessive pressure in the
External Cylinder caused by Non-condensable Gas (Air). Check the
pressure in the ERC and vent until the pressure is equal to Saturation
Pressure at the Ambient Temperature.
PROBLEM: My TX200 worked fine all last Summer. I got it out today for the first service
job this Spring and it is very slow in evacuating the system.
SOLUTION: Today's Spring temperature may be much lower than the average
temperatures during the summer months.
The refrigerant in the A/C System will not be under as high a pressure at
lower temperatures and the TX200 will take longer to draw a vacuum. More
cycles may be required to completely recover the refrigerant.
PROBLEM: I can not get the TX200 to draw a vacuum.
SOLUTION: Check Manifold Gauge and Hoses for restrictions.
If the above suggested solutions do not solve the problem, call 717-840-0678 and one of
our technicians will help diagnose the cause. Please have the Serial Number available for
reference.