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17.4.25 F86 (Aluminium Electric Heater (Heatcharge) 3-Way Valve Cycle Abnormality)
Troubleshooting
Diagnosis Procedures and Cause
Measures to be Taken
Low
Normal
No Good
No
Normal
Abnormal
Check Aluminium electric heater (Heatcharge) 3-way valve characteristics
Aluminium electric heater (Heatcharge)
3-way valve cycle defect evaluation
Gas leakage defect evaluation /
judgement
Ticking sound?
Check the 3-way valve coil
Measure fixed heating operation gas pressure
Replace the 3-way valve
Replace the coil
Detect gas leakage point and change
compenents
Replace the outdoor PCB
Replace the 3-way valve
OK
Yes
(Reference)
Possibility is high for F86 occurrence when
the balance gas is around 20% ~ 40% of
the correct gas amount.
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