A code of 18 appears on the control panel digital indicator. The air-in flow is
retarded (exceeds 2 minutes). You have recently replaced the air-in filter. What is
a possible cause of this malfunction?
a. Chamber drain screen is clogged.
b. Exposure temperature setting is incorrect.
Solenoid valve 3SOL is not opening properly.
d. Solenoid valve 3SOL is not closing properly.
The positive pulse is retarded (exceeds 5 minutes), and a code 04 appears on the
control panel digital indicator. The steam supply is shut off. What would you do to
remedy the problem?
a. Check to ensure the steam supply pressure is 40 to 50 pounds per square
inch gravity (psig) dynamic.
b. Reset exposure temperature.
Turn on the steam supply.
d. Repair the jacket trap.
There is a humming sound coming from the solenoid. What could be a possible
cause of the problem?
a. Door cable is broken.
b. Coil housing is loose.
Recorder motor defective.
d. Power line had a malfunction.