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5. Unusual Noise
Unusual noise during the compressor running
in the mechanical room.
If any unusual noise of the fan (upon opening
the door)?
No
unusual
noise
Unusual noise in D meter
VII. FAILURE DIAGNOSIS
Yes
Is the ground horizontally flat?
Yes
If the mechanical piping being slanted or
contacted.
No
If all the piping in the mechanical room are
resonant.
No
Inspect the vibration of compressor and adjust
the rubber pad to reduce vibration.
Yes
Check if the fan is contacting EV cover or the
grate.
No
Inspect the assembly of fan and grate and
adjust it to create air tightness with the inner
case.
No
Adjust by the adjusting foot.
Yes
Be properly adjusted.
Yes
Adjust the location of counter-weight
Yes
Change the storage method of the food.
Yes
Press down the fan to the end to confirm that
the fan will not contact the grate.
Open the electrical case and replace new D
meter.
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