Omegasonics Viking PDX3 Operation & Instruction Manual page 29

Ultrasound circuit is not operational.
1. Does the digital timer have a visible display?
2. Does the timer count up?
3. Does the timer display flash "OP." in the lower left side?
4. Does the timer display flash a RED dot in the upper left side?
5. If the answer to 1 -4 is NO, replace the digital timer.
6. If the answer to 1, 2 or 3 is YES, use the following steps.
7. Remove upper panel located on the right end of the machine.
8. Does the center coil on the Ultrasound contactor pull in when timer activates?
9. If the answer is YES, the generator is the likely cause.
10. If the answer is NO, can you manually push in the coil to activate the ultrasound?
a. NOTE: Use an insulated screwdriver to push in the center coil.
b. If you cannot push in the coil manually, the contactor needs to be
replaced.
11. Contact Omegasonics for a generator RMA or to order a replacement contactor.
The unit trips the GFCI circuit breaker when the ultrasound operates.
1. GFCI circuit breakers will cause intermittent trips with ultrasound.
2. Install non-GFCI circuit breaker.
NOTE: Always inspect the back panel wires for burnt or loose wires. Burnt wires
are typically caused by a loosened connection and must be replaced.
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