SUNWARD SWE50E - Page 191

OPERATION & MAINTENANCE MANUAL SWE50E/SWE60E/SWE70E/SWE80E9/SWE100
183
A/C Fault and Repair
Problem
Cause
Remedy
System noise
electric appliance connector loosen causes
clutch abnormal
plug connector tightly or
repair
loosened belt
tighten it, if it wearout ,please
replace it
blower、fan blade of electric fan loosened
tighten it again
blower、electric fan running abnormal
repair or replace
bearing of compressor is destroyed
replace
bearing of tension wheel is destroyed
replace
Can not
refrigerate
fuse melted
Check whether short cut and
relpace
amplifier is destroyed
replace
relay is not work
replace
electric wire fault
repair or replace
repair or replace
leak hunting,repair,charging
refrigerant
A/C switch/ manipulator fault
no refrigerating fluid
system clogged
wash or replace
loosened or breakaged belt
adjust or replace
expansion valve fault
wash or replace
compressor running is abnormal
repair or replace
pressure switch fault
replace
sometimes is
cold
circuit bad contact
check and repair
loosened belt
properly adjust belt
the cold adjustment of A/C switch is
improper / manipulator refrigerating
capacity setting is too little
adjust again/enlarge
refrigerating capacity setting
the system has too much water, inside the
ice block
replace reservior dryer
too much or lacking refrigerating fluid
eliminate or supplement
lots of air in system
vacuumize charge