GSI Outdoors PNEG-630 manual Motor Overload Shutdown, Motor Overload Helpful Hints

Troubleshooting Tips Portable Dryer Troubleshooting

Motor Overload Shutdown

This indicates that one of the Motor Overloads has tripped, shutting down the dryer. Each of the Motor Overloads is located in the upper main power control box. They are all wired into a single series circuit that goes to the input/output board on terminal J4-12. Be- fore the dryer will start terminal J4-12 must have 12 volts DC present, or the Motor Overload shutdown will occur.

Visually inspect each of the overloads. You can tell by looking at them if a trip has occurred. Simply press the reset handle on the overload to reset it. After resetting the overloads press the stop button to clear the error.

If no overloads are tripped try the following volt- age tests: Using terminal J5-11 as the negative terminal for all DC voltage checks. Look for 12 volts DC on terminal J-419. This is the terminal that feeds power to the Motor Overloads. If the 12 volts DC is present then check for voltage on J4-12. During a Motor Overload shutdown J4-12 should have zero volts. If you have power going to and not returning to J4-12 inspect the siring from J4-19 to the overloads and then back to J4-

12.If the wiring is okay, turn off all power to the dryer and do a continuity check from J4-19 to J4-12. This must be closed circuit to operate properly.

Motor Overload Helpful Hints

1.Each of the Motor Overload is run in a series circuit. This means, if any of the Motor Overloads trip, a shutdown will occur. Visually inspect the overload to tell

which has caused the shutdown.

2.Even though GSI uses ambient compen- sated overloads, hot weather or positioning the dryer control box in the sunlight may cause a Motor Overload shutdown to occur. This can usually be tested by trying to run the dryer with the control box door open a little bit.

3.Each of the overloads has an adjustable trip setting that can set up to 115 %. At 115% the overload will hold in longer before it trips.

4.Always check amperages on the motors to be sure that the problem is not in the motor itself.

5.Remember that each motor has a built-in service factor. This allow the motor to actually run over the rated full load amps. The motor manufacturers have allowed GSI, on a number of applications, to run motors over the full load amp rating. this is possible because they are being used in an air over application.

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