Troubleshooting - Keystone DD7L Junior Instruction Manual

Check the filter every week and clean at least every two weeks. The filter can either be cleaned using a vacuum cleaner
or in warm, soapy water below 40°C. Make sure that the filter is completely dry before reinserting back into the
dehumidifier.
Dehumidifier storage
When storing the dehumidifier please store in its plastic bag or original box to protect the dehumidifier from dust. If you
are not storing in its box then please store out of direct sunlight.
Never use the dehumidifier without the air filter.

8. TROUBLESHOOTING

Check the following before contacting technical support:
Problem
The unit does not work. The power is not connected.
The water container is full.
The water container has not been replaced correctly.
The air filter is clogged.
The temperature in the room where the dehumidifier is
The device does not
operating is too low.
dehumidify.
The relative humidity in the room where the dehumidifier is
operating is too low.
The house is too large. This dehumidifier can dry up to
about a small five bedroom house.
There are too many sources of moisture. Bathing,
washing, drying clothes and cooking all puts moisture into
The dehumidifier works,
the air. Portable gas heating can add too much moisture
but reduces the relative
into the air for a dehumidifier.
humidity
insufficiently/there is little
water in the water tank.
There is too much ventilation.
The air filter is blocked and the reduce air flow is effecting
performance.
The windows were clear
and now condensation
The outside air temperature has dropped and the windows
has returned.
are colder.
I cannot remove the The surface temperature of the windows is too low for a
condensation from my dehumidifier to prevent condensation. Common with
windows, even in single glazed windows and when the outside air
Maximum mode. temperature drops below freezing.
Dehumidifier is blowing The dried air is passed over a heating element before it is
out warm air. blown into the room as part of the dehumidification
process.
Problem
Knocking noise coming Motor that rotates the desiccant wheel is low on
from the dehumidifier lubrication.
Alarm light on Restricted airflow to the dehumidifier or temperature below
continuously freezing.
Alarm light flashing Restricted airflow to the dehumidifier.
Cause
Cause
Solution
Insert the plug into the wall outlet.
Remove the water from the container.
Place the water container in the correct position.
Clean the air filter.
The machine does not dehumidify below 1°C, it is highly
unlikely at that temperature that there is any moisture to
remove anyway.
The dehumidifier dries down to the target relative humidity
set and then goes into fan only mode until the relative
humidity goes above the set point again.
We recommend using a dehumidifier with a greater
capacity.
We recommend using a dehumidifier with a greater
capacity. Consider using a different heat source to a
portable gas heater.
Reduce ventilation (e.g. close windows and shut doors.)
Clean the air filter.
Use the dehumidifier on Maximum and run it 24 hours a
day.
Keep running the dehumidifier on Maximum 24 hours a
day and when the air temperature outside increases the
windows should clear of condensation.
This is normal, a dehumidifier is not an air cooler.
Solution
Run the dehumidifier in Laundry mode for two days to
increase the lubrication, if fault persists then call Keystone.
Clean the filter and make sure that the unit is more than
30cm from a wall. If the temperature is below freezing
then use the dehumidifier when the space warms up
again.
Clean the filter and make sure that the unit is more than
30cm from a wall.
9 [EN]