Troubleshooting - Mitsubishi Electric MJ-E14CG-S1-SWE Instruction Manual

Troubleshooting

For the symptoms listed below, refer to the remedies listed right.
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Symptom
The unit blows warm air
Water does not collect in the water
tank (minimal dehumidifying results)
The unit does not turn on
(no air comes out)
The unit keeps turning off
Stops after a
short time
Louvre does not
swing
The unit continues to operate
even though it is turned off
The humidity level does
not reach the level set
The hygrometer reading on
the unit differs from other
hygrometers in the room
The louvre does not move as set
The water tank contains
liquid or white water residue
There is black residue on the
inside of the water tank and lid

Dehumidified air passes through heating coils causing it to warm
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(this unit is not a cooler). This is not a malfunction.
Check to see if the temperature/humidity is low.
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Low room temperature/humidity reduces dehumidifying effectiveness.
Confirm the current humidity reading (in winter, the air is cooler reducing
the amount of water collected). This is not a malfunction.
Check to see if the power cord is correctly plugged.
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→
Check to see if anything is blocking the air intake or outlet.
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→
Check to see if the pre-filter is clogged.
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→
Check to see if the unit is operating in "INTELLIGENT LAUNDRY" mode.
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The unit may sometimes stop operation after just a short
amount of time as a result of conditions such as the room
temperature and humidity.
Check to see if the unit is in EASY DEHUMIDIFYING, MILDEW
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GUARD, or AUTO.
The unit is automatically controlling the dehumidifier, fan, and
standby times.
Check to see if the water tank is full.
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→
lights
Check to see if the water tank is inserted properly.
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→
Check to see if the unit is in defrosting mode.
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The unit activates defrosting mode when the room temperature
indicates
drops below 15°C. The dehumidifier and blower functions stop
during defrosting.
Is the unit set to drying inside mode?
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This function activates automatically after the unit finishes operating.
Check to see if the room is not too large.
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Check to see if the exits to the room are open.
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→
Check to see if steam producing appliances such as kerosene
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heaters are on in the vicinity.
Hygrometer readings differ from place to place even if in the
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same room. Use the unit humidity reading as an estimate.
Press the Swing louvre button again.
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The residue is from final product testing at the factory.
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It is not a result of a malfunction.
The residue is from debris in the air.
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→
Cause/Remedy
Plug the power cord properly into the power socket.
Remove the obstruction.
Clean according to the maintenance procedures.
Empty the water tank and return it to its original position.
Adjust the position of the water tank.
Refrain from opening doors/windows during operation.
Clean according to the maintenance procedures.
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