Mitsubishi MJ-EZ6CX-S1-IT Service Manual page 26

4 ) Self Diagnostic Test Program
● Start ...Press the mode switch and dehumidifying switch when power is off.
● Operational content
① Dehumidifying operation ( High )
② Heater turns on immediately.
③ Humidity sensor check mode starts.
④ Louvre speed 243pps ( high speed mode )
⑤ Detection of room temperature anomaly is released.
⑥ Determining the detection of temperature anomaly of heat exchanger and heater once for all
⑦ When an error occurs, the indications shown in "3) Error Indications and Corrective Actions"
Release...Turn off the power.
●
5 ) Demo Program
● Start ...Press the mode switch and the dehumidifying switch 7 times together when power is off.
● Operational content...operation without heater continuity
● Release...Remove the power plug.
6 ) Error History Display
● Start ...Press the mode switch and the dehumidifying switch 9 times together when power is off.
● Mode selection ...Change to the diagnosis mode with the mode switch.
● Release...Turn off the power.
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Turn on the power with those switches pressed.
are displayed.
Turn on the power within 2 seconds.
Alternatively, turn on the power with the swing louvre switch pressed.
Turn on the power within 2 seconds.
History1 ( newest ) → History2 → History3 → History4 → History5 → History6 → History7
History8 → ( History1 )
→