Page 1518 - Foton Workshop Manual - Auman EST-M
P. 1518
EL - 94 Electrical system – electrical components
IN
Phenomenon Possible reason Diagnosis Measure
● Clean the condenser
DI
● Check the operation status
● Too much refrigerant ● Too much refrigerant is
Both low pressure side and of the condenser fan
EG leads to low refrigeration added
high pressure side are at high ● If the condenser and the
● Bad heat transfer at the ● Condenser is contaminated.
pressures. fan work properly, check the
condenser ● condenser fan fails
TR amount of the refrigerant and
add more if necessary.
AX ●Air is entrapped in refrigeration system (condition: refrigeration system dose not work)
FR
ST
BR
BW
EL
Phenomenon Possible reason Diagnosis Measure
● Check if the refrigeration oil
Both low pressure side and
● Air is entrapped in is contaminated or the amount
high pressure side are at high Air may be entrapped in the
refrigeration system. is too low
pressures. The low pressure refrigeration system.
● Not enough vacuum. ● Vacuum the system and
is hot
re-add the refrigerant
● Expansion valve fails (condition: poor refrigeration)
EL-094
