GE Profile DPVH890EJ Technical Service Manual page 42

Test Mode Press
Outlet Enter
Thermistor
Inlet Enter
Thermistor
Moisture Enter
Sensor
Blower/ Enter
Exhaust
Dryer Rack Enter
Steam Test Enter
* The maximum dryer airfl ow is 150 CFM (cubic feet per minute). The service mode does not provide
information about CFM. The only information that is provided is the condition of the exhaust system
represented by blower motor RPM. Blower motor RPM will increase as the dryer exhaust system becomes
partially restricted or restricted.
Displays
• The control shall display the Outlet Thermistor
temperature in degrees Fahrenheit on the VFD
during the test.
• Pressing the START/PAUSE button shall turn on
the drum motor and blower motor, and turn on the
inner coil for electric dryer and the low fl ow gas
valve for gas dryer.
• The control shall turn off the motor and inner coil
heater/gas valve before exiting this test.
• The control shall display the inlet thermistor
temperature in degrees Fahrenheit on the VFD
throughout the duration of the test.
• Pressing the START/PAUSE button shall start the
drum motor and turn on the inner and outer coils
for electric dryer and low fl ow and high fl ow gas
valves for gas dryer.
• For every 30 seconds of run time, the control shall
reverse the direction of the drum.
• Throughout the duration of the test, the VFD shall
display the state of the centrifugal switch (as
monitored by the micro input pin). It shall indicate
whether the control thinks the switch is open or
closed.
• The control shall turn off the drum motor and turn
off the inner and outer coil heater/gas valve before
exiting this test.
The control shall display the voltage read from the
moisture sensor in volts on the VFD.
• The control shall turn on the blower motor and
display speed of the blower in RPM on the VFD.*
• Based on blower RPM, the control displays
Exhaust (less than 2900 RPM), Dirty Exhaust
(between 2900 and 3100 RPM), or Blocked Exhaust
(greater than 3100 RPM), to indicate exhaust
condition.
Control enables the dryer rack cycle and displays the
inlet thermistor temperature in degrees Fahrenheit on
the VFD during the test.
The control activates the blower motor, and the drum
motor (4 sec) then the steam generator (15 sec). The
drum motor reverses and the vent fan runs (20 sec).
The steam generator fi ll activates (4 sec if dry). The
steam generator runs till test is ended. Control displays
Steam.
Note: Heat is off. Prolonged operation causes moisture
build up in dryer drum.
– 42 –
Exit
Press POWER
button to return to
test mode menu.
Press POWER
button to return to
test mode menu.
Press POWER
button to return to
test mode menu.
Press POWER
button to return to
test mode menu.
Open
Press POWER
button to return to
test mode menu.
Press POWER
button to return to
test mode menu.
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