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Troubleshooting - Mitsubishi Electric VL-100U5-E Operating Instructions Manual

Lossnay ventilator
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securely?
-
-
shutter is open.)
Cleaning the panel/main unit
If the panel or main unit becomes dirty, wipe it
less), then wipe it with a clean cloth to remove
any traces of detergent.

Troubleshooting

Inspect the unit if any of the following problems occurs. If the problem is not listed below, or the problem
the power plug from the wall outlet, and then contact your dealer.
Model
Problem
Unit does not operate.
The unit is louder.
The unit is noisy.
It is cold and the shutter
will not move.
VL-100U
-E
5
Less air than normal is
VL-100EU
-E
5
coming from the unit.
The incoming air feels
cold.
No air is coming from the unit.
Not much air is coming
from the unit.
The unit is loud.
The panel will not close.
The operation does not
VL-100EU
-E
5
match the wall switch.
Note
- Use of any of the following solvents in
maintenance may warp, weaken or discolor
Lossnay components.
- Paint thinner, alcohol, benzene, gasoline,
chemical wipes, or abrasive-containing
detergents, such as cleansers
- Clean any dust off of the plug. (VL-100U
only)
Cause
No power to main unit.
not attached securely.
The outside air temperature,
indoor air temperature and
humidity may have caused the
shutter to freeze in place.
The outside air temperature has
dropped.
The Lossnay is a heat-exchanging ventilator, so the volume of air will be
lower than with an ordinary fan. This is normal.
The shutter is closed.
The shutter is closed.
not mounted correctly. (A component is Mounted the component correctly.
The wiring is incorrect.
Eng-8
Shut the Lossnay off until outside
temperatures rise, and then resume
operation.
Turn the unit off temporarily and close
the shutter, as dictated by the situation.
Alternatively, change the louver direction.
Open the shutter.
Open the shutter.
Contact your dealer.
-E
5
-E, remove
5
Page
-E only)
5
4
7
6
6
5
5
5
7

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