Rinnai DONSR07A12 Owner's Manual page 11

The air conditioner does not generate
cool / hot air�
Poor heating performance�
It is not possible to adjust the fan speed�
It is not possible to adjust the
temperature�
Rinnai
Air is not circulating properly� Make sure that there are no curtains,
blinds or furniture blocking the front of the air conditioner�
The air filter is dirty. Clean the air filter once every 2 weeks. See
"Cleaning Air Filter" for more information.
The room temperature is too high� In summer, it may take some
time to cool indoor air� In this case, select the turbo cool operation
to cool indoor air quickly�
The desired temperature is higher than the set temperature� Set the
desired temperature to a level lower than the current temperature�
There is a heating source nearby� Avoid using a heat generator
such as an electric oven or a gas burner while the air conditioner is
in operation
The FAN ONLY mode of operation is selected� In this mode, air
blows from the air conditioner without cooling or heating the indoor
air� Switch the operation mode to the cooling, heating or auto�
The air inlet or outlet of either unit is blocked. Turn the unit off,
remove the obstruction and turn it back on�
Doors and windows are open� Make sure that all doors and
windows are closed while operating the unit�
Excessive heat is generated by sunlight� Close windows and
curtains during periods of high heat or bright sunshine�
Too many sources of heat in the room (people, computers, and
electronics etc)� Where possible reduce the amount of heat
sources�
Low refrigerant due to a leak or after long-term use, contact Rinnai�
The outdoor temperature is lower than 7°C� Use an auxiliary
heating device�
Doors and windows are open� Make sure that all doors and
windows are closed while operating the unit�
In some operation modes, you cannot adjust the fan speed� Select
an operation mode in which you can adjust the fan speed�
In some operation modes, such as the auto or fan only modes, you
can not adjust the temperature� Select an operation mode in which
you can adjust the temperature�
11
CARE & MAINTENANCE
Ducted Heat Pump OM