Installation Guide

EN
Troubleshooting Dometic Harrier Inverter
16
Not heating well The roof air conditioner is not set to
heating.
➤ Set the roof air conditioner to
heating.
The ambient temperature is below
–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.
Water enters the
vehicle
The condensation water drainage
openings are clogged up.
➤ Clean the drainage openings
for condensation water.
The seals are damaged.
➤ Contact an authorised service
agent or Dometic.
Roof air condi-
tioner does not
switch on.
No supply voltage (240 Vw)
connected.
➤ Check the power supply.
The voltage is too low
(under 200 Vw).
The voltage converter is defective.
➤ Contact an authorised service
agent or Dometic.
One of the temperature sensors is
defective.
The electrical fuse of the power
supply is too low.
➤ Check the electrical fuse of the
power supply.
Roof air condi-
tioner does not
switch off.
One of the temperature sensors is
defective.
➤ Contact an authorised service
agent or Dometic.
The electrical fuse of the power
supply is too low.
➤ Check the electrical fuse of the
power supply.
Problem Cause Remedy