Indicator Lights - McQuay MWMXG Series Installation Manual

IR signal receiver
When an infrared remote control operating signal has
been transmitted, the signal receiver on the indoor unit
will make a <beep> sound to confirm acceptance of the
signal transmission.
Cooling unit
/ Heat Pump unit
The table shows the LED indicator lights for the air condi-
tioner unit under normal operation and fault conditions.
The LED indicator lights are located at the middle of the air
conditioner unit.
The heat pump units are equipped with an "auto" mode
sensor whereby it will provide reasonable room temperature
by switching automatically to either "cool" or "heat"
mode according to the temperature set by the user.
LED Indicator Lights : Normal Operation And Fault Conditions For Cooling / Heat Pump Unit
COOL/HEAT
(GREEN/RED)
Green
Red
Orange
Red
Green
Green
Green
Green
ON

INDICATOR LIGHTS

Inverter Unit (MWMX-G)
LED Indicator Lights for Cooling Unit / Heat Pump
Unit
Sleep Mode
Normal Operation / Fault Indication
Cool mode
Heat mode
Auto mode in Cooling/Heating operation
Timer on
Sleep mode on
Ionizer on
Fan mode on
Dry mode on
Defrost operation
Indoor temperature sensor loose / short
Coil temperature sensor loose / short
Outdoor temperature sensor loose / short
Compressor overload protection
IPM / PFC error
Outdoor total current trip / DC peak
Compressor overheat / Gas leak
Indoor fan feedback error
Communication error between indoor
and outdoor
ON or OFF
1-8
IR Receiver
LED indicator lights
Cool Timer Ionizer/NTP
Action
–
–
–
–
–
–
–
–
–
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Call your dealer
Blinking