Fisher & Paykel AeroSmart DE62T27CW1, Руководство по обслуживанию

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517760C
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7.2.2 Machine Status Screen
Machine Status Screen
Tacho:
This displays the
position of the drum. The displayed
figure is updated every five seconds
and will change as the drum
revolves.
Exht tmp: This displays the temperature in
o
C of the exhaust sensor.
Actuator: This displays the count of the current draw of the actuator motor.
Tacho Err: During reversals of the drum there will often be a transient error because of uncertainty
of direction during the reversing process, but this should be corrected on the next
revolution.
Touch: This displays the impedance of the conductivity contacts (refer to Section 7.3).
LED Cnt:
This is a measure of the infra-red light intensity required to sense the drum position. It
is normally about 14 but can range from 5 to 53.
7.2.3 Warning Status Screen
The last User Warning will be displayed on this
screen and will be displayed until another User
Warning overwrites it or the power is switched
off.
7.3 Testing the Conductivity Contacts
Impedance Testing
It is possible to check the integrity of the conductivity contacts through diagnostics. Firstly enter
the Machine Status Screen as described in Section 7.2.2, and when in this mode, by touching
damp clothes or fingers across the conductivity contacts, the value adjacent to the word
Touch will
increase. The minimum value is zero. This indicates an open circuit. The maximum value is 255.
No change in this value when touching the contacts, or conversely a high value when not touching
the contacts, would indicate a fault in this circuit.
Resistance Test
An alternative, but slightly less reliable, method of testing the conductivity contacts is to test the
circuit with a multimeter. When using this method, the power to the dryer must be switched off.
Place one probe of the multimeter on each conductivity contact. The resistance should be
6. 2%.
7.4 Data Download Mode
Encoded data is transmitted out of the white Wrinkle Free LED, and can be captured by an optical
download pen attached to a PC or hand held palm PC, where “Smart Tool” software interprets the
data to aid servicing.
1. Enter diagnostic mode as described in Section 7.1.
2. Push
the START/PAUSE button and the Wrinkle Free LED will flash. The machine is now
in data download mode.
To exit from the data download mode, press the POWER button.