Fujitsu AUXG36KRLB Service Manual page 87

Check point 4. Check the solenoid coil and 4-way valve
NOTE: Refer solenoid coil and 4-way valve in
• Solenoid coil
Remove P60 from PCB and check the resistance value of coil. Resistance value is 1.97kΩ.
→ If it is open or abnormal resistance value, replace solenoid coil.
• 4-way valve
Check each piping temperature, and the location of the valve by the temperature difference.
If the value location is not proper, replace 4-way valve.
Check point 5. Replace main PCB
If Check Point 1 to 4 do not improve the symptom, replace main PCB.
2-31. E: 99. 4-way valve error (Outdoor unit)
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End
"Service parts information"
- (03-37) -
on page 03-52.
2. Troubleshooting with error code