Diagnostic Codes - Daikin EEV Series Installation Instructions Manual

DIAGNOSTIC CODES
7 SEGMENT LED
DISPLAY
Normal Operation

NO HTR KIT INSTALLED - SYSTEM CALLING FOR AUXILIARY HEAT (Minor Error Code)

HEATER KIT DIP SWITCHES NOT SET PROPERLY

FUSE OPEN

AUXILIARY SWITCH OPEN

DATA NOT ON NETWORK

INVALID DATA ON NETWORK

INVALID MEMORY CARD DATA

BLOWER MOTOR NOT RUNNING

BLOWER MOTOR COMMUNICATION ERROR

BLOWER MOTOR HP (Horse power) MISMATCH

BLOWER MOTOR OPERATING IN POWER, TEMP., OR SPEED LIMIT

BLOWER MOTOR CURRENT TRIP OR LOST ROTOR

OVER/UNDER VOLTAGE TRIP OR OVER TEMPERATURE TRIP

INCOMPLETE PARAMETER SENT TO MOTOR

LOW INDOOR AIRFLOW (Minor Error Code) (without EH mode)

LOW INDOOR AIRFLOW

(Major Error Code) (EH mode only)
EEV DISCONNECTION DETECTED

LIQUID SIDE THERMISTOR ABNORMALITY

GAS SIDE THERMISTOR ABNORMALITY

PRESSURE SENSOR ABNORMALITY

INDOOR UNIT - THERMOSTAT COMMUNICATION ERROR

(STARTUP OPERATION & DURING OPERATION)
HUMIDIFICATION DEMAND

(Running without heating)
FAN COOL - COMMUNICATING MODE ONLY (Fan Demand-Cool)

FAN HEAT - COMMUNICATING MODE ONLY (Fan Demand-Heat)

FAN ONLY (Fan Demand-Manual)

ELECTRIC HEAT LOW (Heat Demand, Back-up Heat Demand)

ELECTRIC HEAT HIGH (Heat Demand, Back-up Heat Demand)

DEFROST - COMMUNICATING MODE ONLY (note: defrost is displayed as H1 in a legacy setup)

DESCRIPTION OF CONDITION
21