Service Test Mode; Troubleshooting - GE Profile PTDS650EM Technical Service Manual

Service Test Mode

The dryer control has a service test mode that can be utilized by the service technician in order to test
critical components and to access error codes. This test mode will help the service technician to quickly
identify failed or improperly operating dryer components.
How to enter to service test mode and navigate:
Within 30 seconds of plugging the unit in, push and hold the START/PAUSE button and turn the cycle
selection knob 180 degrees clockwise.
Upon entering the service mode, the control shall be in test selection mode and display the fi rst test number
(t1). Rotating the knob counterclockwise (CCW) shall decrement the test number in the display. Rotating the
knob clockwise (CW) shall increment the test numbers in the display.
Once the test number is selected, pressing START/PAUSE shall begin the selected test. During a test, pressing
the START/PAUSE button shall either move to the next part of the test or terminate that test and bring the
control to the test selection mode (test number is displayed on the display).
Service Test Mode
t1 Dryer Model
Software/EEPROM
t2
Version
CRC Check
t3
User Interface
t4
Test
t5
Error Codes
Outlet
t6
Thermistor
Inlet
t7
Thermistor
Moisture
t8
Sensor

Troubleshooting

Display model (e.g. 1g, 1e, 2e, 2g, etc.) or model number (part
START/PAUSE
number)
KNOB Select next service mode test
START/PAUSE Switch between S/W version and EEPROM version
KNOB Select next service mode test.
Start EEPROM CRC check. Display will show "EP" if successful.
START/PAUSE
Display will show "Er" if unsuccessful.
KNOB Select next service mode test.
Enter or exit user interface test. All LED's and segments
START/PAUSE
should be lit.
KNOB Select next service mode test.
Enter or exit error code test. Display error codes
START/PAUSE
automatically. E0 means no errors.
KNOB Display current knob position number.
Enter or exit outlet thermistor test. Display shows current
START/PAUSE
temperature reading.
KNOB Select next service mode test.
Enter or exit inlet thermistor test. Display shows current
START/PAUSE
temperature reading.
KNOB Select next service mode test.
Enter moisture sensor test. Display shows current moisture
START/PAUSE
sensor reading.
KNOB Select next service mode test.
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Sequence
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