Indel Webasto U060X020P, Installation And Usage Instructions

Page: 84 / 408

10 Troubleshooting
Below are the possible causes of failure or malfunction with an explanation of
measures to be taken. In the event of defects not contained in the table or in the
event of faults that cannot be resolved following the contained instructions, contact
Indel Webasto Marine S.r.l. directly.
Table 8: Fault-cause-measure summary table
Fault Possible cause Measure
Nothing happens when the
power is switched on.
Incorrect polarity.
No electrical current.
The battery is drained.
Voltage drop due to cables that
are too thin.
Thermostat fault
Electronic unit fault
Correctly po and - con -
nections.
Check that mains power is
connected.
Check fuses.
Inspect the charging circuit.
Check possible voltage drops.
Replace cables if necessary.
Connect to bridge C and T on the
electronic unit. If the compres -
sor starts up, the thermostat is
faulty.
Change the electronic unit.
The compressor only performs
brief start attempts at start-up.
Power problems, voltage too low
or voltage drop during start-up
attempts.
The Batteries are drained.
Check cables and connections,
possible presence of verdigris.
Charge the batteries, start the
motor or connect the battery
charger.
The compressor functions but
does not cool.
Loss of refrigerant.
Quick coupling joints not tight -
ened enough.
Hoses or evaporator leaking.
Insect and tighten. Contact an
expert in refrigeration systems
for a general check or a specific
refrigerant check.
The compressor runs for a long
time but without generating
enough cold.
Inadequate ventilation and/
or insufficient insulation of the
compressor.
Improve ventilation and/or
isolation of the cooling compart -
ment.
The compressor runs too long,
generating too much cold in the
cooling compartment.
The end of the thermostat
sensor is not mechanically con -
nected to the evaporator.
The thermostat has a fault for
which it does not turn off.
Check assembly of the sensor
end and replace it.
Re-position the thermostat.
Fuses are blown.
Fuses are sized incorrectly.
Electronic unit fault
Check fuses 15 A – 12 V / 7.5
A – 24 V
Change the electronic unit.
User Manual
84