SUNWARD SWE50B, Operation & Maintenance Manual

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117
A/C Fault and Maintenance
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
Insufficient air
too much or lacking refrigerating fluid eliminate or supplement
lots of air in system
vacuumize charge refrigerating
fluid again
clutch slipped or brasion repair or replace