Product Manual

EN
Dometic Harrier Inverter Troubleshooting
23
11 Troubleshooting
Problem Cause Remedy
Roof air condi-
tioner constantly
switches itself off.
Icing sensor has tripped. Outer temperature is too low or all
air nozzles are closed.
Not cooling well The roof air conditioner is not set to
cooling.
➤ Set the roof air conditioner to
cooling.
The ambient temperature is above
52 °C.
The roof air conditioner is only
designed for ambient tempera-
tures of up to 52 °C.
The temperature set is higher than
the room temperature.
➤ Select a lower temperature.
The ambient temperature is below
16 °C.
The roof air conditioner is only
designed for ambient tempera-
tures above 16 °C.
One of the temperature sensors is
defective.
➤ Contact an authorised service
agent or Dometic.
The evaporator fan is damaged.
The condenser fan is damaged.
Not heating well The roof air conditioner is not set to
heating.
➤ Set the roof air conditioner to
heating.
The ambient temperature is above
–2 °C.
The roof air conditioner will only
heat at ambient temperatures
above –2 °C.
The temperature set is lower than the
room temperature.
➤ Select a higher temperature.
One of the temperature sensors is
defective.
➤ Contact an authorised service
agent or Dometic.
The evaporator fan is damaged.
The condenser fan is damaged.
Low air output The air intake grilles are blocked or
obstructed.
➤ Remove any leaves and other
dirt from the ventilation grilles
of the roof air conditioner.
The blower is defective.
➤ Contact an authorised service
agent or Dometic.