Electra LEX 25 DCI Service Manual page 88

No. Fault
The outdoor fan
14 does not function
correctly.
The compressor
15
does not start up.
The refrigeration
16 system does not
function correctly.
No cooling or
17 heating only indoor
fan works.
Only indoor fan
18 and compressor
working.
Only indoor fan
19
working.
SM LEXDCI 1-E.1 GB
Probable Cause
Check the voltage
between indoor fan
terminals on the main
P.C.B.
There is voltage between
outdoor fan terminals on
the outdoor unit.
There is no voltage
between outdoor fan
terminals on the outdoor
unit.
Check voltage on
compressor terminals on
the outdoor unit. (with
ampmeter)
Check if there is correct
voltage between
compressor terminals on
the outdoor unit.
Check for leaks or
restrictions, with
ampmeter, pressure guage
or surface thermometer.
Outdoor fan motor faulty
or other fault caused,
compresssor overload
protection cut out.
Outdoor fan blocked.
-Run capacitor of outdoor
fan motor faulty.
-Windings of outdoor fan
are shorted.
CONTENTS
TROUBLESHOOTING
Corrective Action
- If there is no voltage
replace main P.C.B
- Replace capacitor or motor.
- Check and repair electrical
wiring between indoor and
outdoor units.
-If no voltage replace main
P.C.B.
- If low voltage repair power
supply.
-If the voltage corrrect
replace capacitor or
compressor.
-If there is no voltage repair
electrical wiring between
indoor and outdoor units.
- Repair refrigeration system
and charge refrigerant if
necessary.
-Replace P.C.B.
- Outdoor fan blocked
remove obstructions.
- Remove obstructions.
- Replace capacitor.
-Replace motor.
13-5