Dometic CK36H401RI Operating Manual page 24

Troubleshooting
Problem Cause
Not heating well The roof air conditioner is not set to heat-
ing.
The ambient temperature is above –2 °C. The roof air conditioner will only heat
The temperature set is lower than the
room temperature.
One of the temperature sensors is
defective.
The evaporator fan is damaged.
The condenser fan is damaged.
Low air output The air intake grilles are blocked or
obstructed.
The blower is defective.
Water enters the The condensation water drainage open-
vehicle ings are clogged up.
The seals are damaged.
No supply voltage (240 Vw) connected. ➤ Check the power supply.
Roof air condi-
tioner does not
The voltage is too low (under 200 Vw).
switch on.
The voltage converter is defective.
One of the temperature sensors is defec-
tive.
The electrical fuse of the power supply is
too low.
Roof air condi- One of the temperature sensors is defec-
tioner does not tive.
switch off.
The electrical fuse of the power supply is
too low.
Remote control The remote control is not pointing
does not register towards the ADB display.
The batteries in the remote control need
replacing.
Note: The display of the remote control
will still be bright even if the batteries are
low.
24
Dometic Harrier Inverter
Remedy
➤ Set the roof air conditioner to
heating.
at ambient temperatures above
–2 °C.
➤ Select a higher temperature.
➤ Contact an authorised service
agent or Dometic.
➤ Remove any leaves and other dirt
from the ventilation grilles of the
roof air conditioner.
➤ Contact an authorised service
agent or Dometic.
➤ Clean the drainage openings for
condensation water.
➤ Contact an authorised service
agent or Dometic.
➤ Contact an authorised service
agent or Dometic.
➤ Check the electrical fuse of the
power supply.
➤ Contact an authorised service
agent or Dometic.
➤ Check the electrical fuse of the
power supply.
➤ Point the remote control towards
the ADB display.
➤ Replace the batteries in the
remote control.
EN