Indel Webasto Marine Isotherm Built-In Series - 8 LEDs for Diagnostics

User Manual
28
8 LEDs for diagnoscs
The electronic control unit has a troubleshoong funcon when a LED is connected
as shown below.
The number of ashes indicates the type of error.
Number of LED
Flashes
Type of Error Soluon
6 Defecve sensor (the sensor is defec-
ve or disconnected).
Re-connect the sensor and verify that
the compressor starts working again.
Replace sensor if the compressor does
not work.
5 Thermal protecon of the electronic
control unit.
(the electronic control unit overheats
if the refrigeraon system has become
overloaded or the environmental tem-
perature is too high)
Remove excess gas or increase venla-
on.
4 Minimum motor speed error.
(if the refrigeraon system has been
overloaded, the motor cannot maintain
minimum speed of approximately
1.850 RPM).
Remove excess gas.
3 Motor starng error
[the rotor is blocked or pressure inside
the refrigerant circuit is too high (> 5
bar)].
Defecve electronic control unit.
The rst operaon to aempt is to
replace the electronic control unit. Re-
place compressor if problem persists.
2 Fan short-circuited
(the fan absorbs more than 1A from
the electronic control unit).
Replace the fan.
1 Baery protecon
(voltage is outside the maximum and
minimum voltages).
Check power cable condions. Replace
with new cables if necessary. Check
baery condions.