McQuay MQC164036CCK216B User Manual

R410A 60Hz 16 SEER Universal Outdoor Series Technical Manual
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1.10.2 Self-fault diagnostic function
LED Faults
Digital display
Failure descriptionction
Timer light flashing
E2
Ambient temperature sensor (T1) failure
Running light flashing
E3
Evaporator pipe temperature sensor (T2) failure
Defrost light and Protect light flashing
E5
Outdoor unit failure
Running light and Timer light flashing
E7
Indoor unit EEPROM failure
Defrost light and Timer light flashing
E8
lndoor unit fan stall failure
Running light and Defrost light flashing
E9
Indoor unit and Wired controller communication
failure
Defrost light flashing
F6
Condenser pipe temperature sensor (T3) failure
Protect light flashing
EE
Water full failure
E2: Indoor ambient temp. sensor fault (T1 sensor)
Solution:
(1)Check the T1 sensor connection loosen or not, inset it firmly, if not solve, go to next step;
(2)Take out the sensor, measure the resistance of the sensor, it is about 5KΩ at 25℃, if not, replace it; if resistance
normally, change the indoor main board.
E3: Indoor evaporator pipe temperature sensor (T2) failure
Solution:
(1)Check the T2 sensor connection loosen or not, inset it firmly, if not solve, go to next step;
(2)Take out the sensor, measure the resistance of the sensor, it is about 5KΩ at 25℃, if not, replace it; if resistance
normally, change the indoor main board

McQuay MQC164036CCK216B Specifications

General

Brand	McQuay
Model	MQC164036CCK216B
Category	Fan
Language	English