Equipment Operates But Does Not Provide Heating - Daikin R71FUV1 Service Manual

Si20-701_B
2.7 Equipment Operates but does
not Provide Heating
Applicable Model
All models of SkyAir series
Supposed Causes
Wrong selection of model
Refrigerant shortage
Insufficient airflow in the indoor unit
Decrease of low pressure
∗ In addition, the following errors may be conceivable
• Insufficient compression of the compressor
• Insufficient circulation of refrigerant
• Defective electronic expansion valve
44
Symptom-based Troubleshooting