Perkin-Elmer TITAN MPS, User Manual

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114
Troubleshooting
Microwave Oven
Problem Possible Cause(s) Corrective Action
Lid cannot be opened. Lid cannot be opened.
Power cord is loose or the
power switch is not switched
on.
Program in progress. Check the power cord.
Switch on the power switch.
For safety, the lid cannot be
opened while the microwave
is in operation.
Magnetron switches off dur-
ing digestion. Turntable not correctly
engaged with the drive.
Foreign material in or near
the hinge.
PFA tube is incorrectly
adjusted.
Manifold seal disc is askew or
defective. Position turntable correctly.
Ensure the top deck of the
oven is clear.
Adjust the PFA tube to allow
the lid to fully close.
Lid will not close. Turntable not correctly
engaged in drive axis. Position turntable correctly.
Microwave does not start. Defective door switches
Unauthorized tampering with
door switches. Contact your PerkinElmer
Service Representative.
Oven chamber gets very hot,
especially the turntable. Acid volume too low. Increase quantity of fluid
refer to Operation, minimum
filling quantity.
Reduce total running time
(max. 30 minutes).
Spark formation in the oven. Acid volume is too low
Stray rupture disk or metallic
object in the oven.
Increase quantity of liquid, a
minimum load of 20 mL of
liquid is required.
Remove burst disk or object.
(see Chapter 6 Maintenance,
Replacing TFM Seals and
Metal Rupture Discs).