Troubleshooting - Mitsubishi Electric VL-100U5-E Instrucciones De Operación

6. After reassembly, check the following.
- Are the filters and the panel attached
securely?
- Is the unit making no strange noises?
- Is the unit blowing air? (Be sure to check the
unit while it is running. Make sure that the
shutter is open.)
Cleaning the panel/main unit
If the panel or main unit becomes dirty, wipe it
with a well-wrung cloth soaked in a solution of
neutral detergent and lukewarm water (40°C or
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
persists after inspection, shut off the circuit breaker on the distribution board or, for VL-100U
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,
kerosene, aerosol sprays, alkaline cleaners,
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.
The panel or outside air filter is
not attached securely.
The outside air filter or exhaust
air filter is clogged.
The outside air temperature,
indoor air temperature and
humidity may have caused the
shutter to freeze in place.
The outside air filter or exhaust
air filter is clogged.
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.
The Lossnay Core or outside air filter is
not mounted correctly. (A component is
out of position or inserted backwards.)
The wiring is incorrect.
Eng-8
Check the following
Check the power plug. (VL-100U
Check whether a breaker has tripped.
Check whether a power failure has occurred.
Reattach the panel or filter.
Clean the filter.
Shut the Lossnay off until outside
temperatures rise, and then resume
operation.
Clean the filter.
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.
Mounted the component correctly.
Contact your dealer.
-E
5
-E, remove
5
Page
-E only)
5
4
7
6
—
6
5
—
5
5
7
—