Page 2022 - Workshop Manual - Tunland (2017)

61-16 HEATER AND AIR CONDITIONING - REFRIGERANT

61

Symptom Possible Cause Diagnostics Action
• Check the
expansion valve.
• Blow off the dirt
• The flow of the inside the
Vaccum at the low
refrigerant is expansion valve
end and low pressure
blocked by steam with compressed
at the high end. Frost
or dirt. air.
or dew on the pipes • The flow of the Refrigerant unable to • Replace the
before and after the circulate
refrigerant is condenser.
condensing/drying
intervened by • Vacuum the system
can or expansion
leakage in the and Add some
valve.
expansion valve. refrigerant.
• If any leakage in
the expansion
valve, replace it.

• Overly refrigerant or poor radiation of condenser (condition: ineffective cooling)