Indel Webasto isotherm 101N0212, Instruction Manual

Page: 51 / 212

ISOTHERM Digital Display
51
Troubleshooting
-
No communication between the display and the control unit.
The horizontal scrolling line appears on the DISPLAY for a few
seconds, the refrigerator switches off.
LO Insufficient voltage (Volts below the cut-out value).
R2 The fan absorbing a value exceeding 0.6A from the control unit.
R3 Compressor blocked.
R4
The refrigeration system is too loaded with gas and the compres-
sor is not able to operate at the minimum RPM.
R5 Room temperature is too high.
R6
The temperature sensor is short-circuited or not correctly con-
nected to the control unit.
Notes
If the cooling system is struggling to reach the set temperature,
check that:
- The voltage on the control unit leads upon start-up exceeds
that indicated in table TAB.01 under the item Full Speed inher-
ent to the 12/24vdc voltage system used.
- The insulation is thick enough in relation to the volume and
type of FRIDGE or FREEZER system required, see cooling unit
manual.
- The compartment volume does not exceed the maximum vol-
ume allowed by the cooling system distinguished as a fridge or
freezer unit. The fridge unit cannot be used as a freezer if the
volume is not decreased at least 2/3 and insulation increased.
See the cooling unit use and maintenance manual. - The correct
temperature for the fridge system is approxi5°C. For a
freezer unit, and directly proportioned to the value, type, and
thickness of insulation, temperatures may vary from -6°C to
-18°C.
- For all other cases, see the unit manual or contact an IWM
service centre.