Basic Troubleshooting - Friedrich MWM12Y1J Installation And Operation Manual

The sound of water flow
during operation.
In COOL Mode there is a
mist emitted from the vent.
Unit does not cool/heat room
sufficiently.
Cause
When the indoor temerature
and humidity are high and
there is a rapid cool down in
the room.
The return/discharge air
grille is blocked.
Windows or doors to the
outside are open.
The setpoint is not set
to a cool/warm enough
setting.
Ambient temperature of the
space is to hot/cool.
Outdoor coil is dirty or
obstructed.
The indoor filter is dirty or
obstructed
The system was not properly
sized for the heat load
requirements of the space
12
Turn unit on.
●
Raise/Lower temperature
●
setting.
Unit will resume normal
●
operation once power
has been restored.
Clean air filter.
●
Clean air conditioner.
●
Please contact an
●
Authorized Friedrich
Service Agency
When the compressor
●
starts or stops running
you may here a swoosh
or gurgle, this isn't
a malfunction.
After running for a period of
time the indoor temperature
and humidity will decrease,
mist will fade away.
Check that return/discharge
air are not blocked.
Check that windows and
doors are closed.
Adjust setpoint to a more
comfortable setting.
Please allow more time for
system to cool/heat living
space
Please contact servicer
to properly clean coils.
Clean filter - (Refer to
routine maintenance
section for instruction)
Please contact your servicer
for more information if
previous options do not
remedy the issue.