Aermec F0
Bad Performance of the Outdoor Mainboard (MVA VRF system)
Source: Aermec_MVA_UserManual_HVAC_EN_06dacf.pdf
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Other Aermec error codes
Outdoor unit error (MVA VRF system)
E1High pressure protection (MVA VRF system)
E2Discharge Low Temperature Protection (MVA VRF system)
E3Low pressure protection (MVA VRF system)
E4Excess Discharge Temperature Protection of Compressor (MVA VRF system)
EdLow Temperature Protection of Driver Module (MVA VRF system)
J9System Pressure Under-Ratio Protection (MVA VRF system)
JAProtection of Abnormal Pressure (MVA VRF system)
JCProtection of Water Flow Switch (MVA VRF system)
JLProtection of Low High-pressure (MVA VRF system)
JEOil Return Pipe is Blocked (MVA VRF system)
JFOil Return Pipe is Leaking (MVA VRF system)