SOURCE: Whirlpool Duet Sport ~ E28 Error Code
serial communication error between central control and motor control.
Check connections at ccu (top front right corner) and mcu (bottom by motor), check belt drive for wear.
Did motor run ? Any other codes in diagnostic? (any one modifier button 4 sec on 4 secs off 5 times.) F codes are failures and C codes are portions of test cycle(automaticly run)
SOURCE: my printer show error e28, help solve it, please
E28 = Ink cartridge temperature rise error
1) With the printer powered off but connected to a power source, press the Power button while pressing and holding the Stop/ Reset button.
2) When the Power is lit, press the Stop/Reset button two times while pressing and holding the Power button.
3) When releasing the Power button and the Stop / Reset button (regardless of order), the printer will move into a service mode. (Waiting for menu selection)
4) When the on/off lights in green, press the Stop/Reset button the specified number of time(s) according to the function listed in the table below.(Each time the Stop/Reset button is pressed, the LED lights alternately in orange and green, starting with orange.)note: press 4 times for waste ink counter reset.
The number of the Reset
button pressing
LED Function Remarks
0 time Green Power off
1 time Orange Service pattern print
2 times Green EEPROM print
3 times Orange EEPROM reset
4 times Green Waste ink counter reset
5) Unplug cable power.
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