40GVQ - Error Codes

Article ID: 503

Last updated: 2 Mar, 2018

Carrier Mini-Splits: 38 - 40GVQ

Re: Error Codes

ERROR CODES AT INDOOR UNIT
CODE	DESCRIPTION
EE	Indoor PCB Malfunction. Replace indoor main board.
E2	Anti-freeze Protection. Outdoor ambient temperature is too low.
E4	Discharge temperature sensor out of range.
E5	Low voltage protection
E6	Communication malfunction
E8	System overload protection
U8	Indoor board malfunction
H6	Indoor motor malfunction
C5	Missing jumper from indoor board
F1	Return air temperature sensor malfunction
F2	Indoor pipe temperature sensor malfunction
F3	Outdoor ambient temperature sensor malfunction
F4	Condenser temperature sensor malfunction (open or shorted)
F5	Discharge temperature sensor malfunction (open or shorted)
F6	Overload limit, compressor speed reduction
F8	Over current compressor speed reduction
F9	Compressor discharge temperature high, compressor speed reduction
PH	Over voltage protection
U5	Current detection malfunction
P5	Compressor current protection
H1	Defrosting
H3	Compressor overload protection
H4	System overload protection
H5	IPM protection
HC	PFC (power factor correction) board protection
H7	Compressor speed reduction
H0	Ambient temperature cut off range
LC	Compressor start-up failure
U1	Compressor phase detection error

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Article ID: 503

Last updated: 2 Mar, 2018

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