What to do if my McQuay Air Conditioner is not cooling enough?
If your McQuay Air Conditioner isn't cooling sufficiently, it might be due to a dirty indoor or outdoor coil. Try cleaning the coil. Also check for any obstructions at the air inlet or outlet of the indoor or outdoor unit and remove them. It could also be caused by a refrigerant short charge or leakage, in which case you should add refrigerant and repair the leakage.
How to fix a McQuay Air Conditioner that won't turn on (no cooling/heating)?
If your McQuay Air Conditioner fails to start, it could be due to a faulty contactor, contacts or motor. Try changing the contactor or the contacts. You might also need to repair or change the motor.
Why McQuay M5LC shows high side low side?
If your McQuay Air Conditioner is showing a high side low side issue, it could be due to: * An undercharge of refrigerant. * Refrigerant leakage. * A clogged or dirty air filter in the indoor unit. * A locked indoor fan (during cooling). * A defective defrost control causing outdoor coil freeze-up (during heating). * A locked outdoor fan (during heating).
General| Refrigerant | R-410A |
|---|---|
| Refrigerant Type | R-410A |
| Phase | 1 |
| Type | Air Conditioner |
| Cooling Capacity | 60, 000 BTU/h (depending on model) |
| Voltage | 208/230V |
Lists McQuay product model names and their descriptions.
Provides conversion factors for various units like capacity, pressure, flow rate, temperature, and volume.
Compares mainboards with compatible handset models, showing type and application.
Details the operation guide for the G6 McQuay air conditioner handset, including buttons and functions.
Explains the operation guide for the G7 McQuay air conditioner handset, covering buttons and functions.
Details the operation guide for the G11 McQuay air conditioner handset, including buttons and functions.
Explains the operation guide for the G17 McQuay air conditioner handset, covering buttons and functions.
Details the operation guide for the GS01 McQuay air conditioner handset, including buttons and functions.
Explains the operation guide for the APJ1 McQuay air conditioner handset, covering buttons and functions.
Details the operation guide for the SLM3 McQuay air conditioner handset, including buttons and functions.
Explains the operation guide for the SLM8 McQuay air conditioner handset, covering buttons and functions.
Details the operation guide for the Sequential Controller, including buttons and functions.
Explains the operation guide for Netware 3 and Netware 3C handsets, covering buttons and functions.
Details the operation guide for the Rooftop Panel, including LCD display and buttons.
Explains the operation guide for the Chiller Panel, including LCD display and buttons.
Details the operation guide for the MC301 handset, including LCD window and functions.
Explains the operation guide for the MC303 handset, including LCD window and functions.
Describes the setting for auto random restart functionality on the controller.
Explains the three available selections for hot keep functionality.
Details dip switch settings for sequential controller models SQCn and SQHnh.
Explains jumper settings for W1V3 units to configure valve and heat pump modes.
Details jumper configurations for W2.0 units to set operating modes and valve/heat settings.
Summarizes hardware settings for SLM8, controlling temperature range and turbo/quiet features.
Details components needed to convert U1.5 heatpump PCB to auxiliary heater application.
Explains how to convert Cooling Only and Heatpump models to multi-split units.
Outlines reasons why U1.5 PCB cannot be directly replaced by L208A PCB and lists required parts.
Details the conversion from WMF U1.4 to L2EF PCB, noting display panel and switchboard incompatibility.
Provides work indication for converting SQ board for 1000m wiring, involving jumper removal and part soldering.
Explains how to use the temperature sensor on the Netware 3 controller board as a room sensor.
Provides a table correlating LED status with operations and faults for Wall Mounted F Series Cooling Only.
Details LED indicators, error codes, and fault indications for Wall Mounted F Series Heat Pump.
Explains LED indicators, error codes, and fault indications for Wall Mounted G Series.
Details LED indicators, error codes, and fault indications for Wall Mounted J Series.
Correlates LED indicators, error codes, and faults for Ceiling Cassette A/B/C Series.
Details LED indicators, error codes, and fault indications for Ceiling Cassette A/B/C/E Series.
Explains LED indicators, error codes, and fault indications for Ceiling Exposed D Series.
Correlates LED indicators, error codes, and faults for Ceiling Exposed D/E Series.
Provides self-diagnostic tables for W1V3 and W2 models, listing fault indications and actions.
Details LED indicators, error codes, and fault indications for Water Source Split Unit - Wall Mounted G Series.
Correlates LED indicators, error codes, and faults for Water Source Split Unit - Ceiling Cassette A/B/C Series.
Explains LED indicators, error codes, and fault indications for Wall Mounted F Cooling Only Inverter-X.
Details LED indicators, error codes, and fault indications for Wall Mounted F Heatpump Inverter-X.
Correlates LED indicators, error codes, and faults for Wall Mounted G Series Inverter-X.
Details LED indicators, error codes, and fault indications for Ceiling Cassette A/C Series Inverter-X.
Explains LED indicators, error codes, and fault indications for Ceiling Convertible E Series Inverter-X.
Lists error codes and indications for Inverter - X Outdoor Units, covering normal running and compressor errors.
Shows LED indications for Cooling, Heating, Auto modes, and error conditions for Inverter-Y Indoor Series.
Lists error codes and faulty indications for various handset models including SLM, Netware, and Sequential.
Describes rooftop panel alarms, messages, navigation, and error details with causes and actions.
Provides a table of common problem symptoms, check items, and suggested actions for troubleshooting.
Guides troubleshooting based on high and low side pressure readings and probable causes.
Provides tables showing resistance vs. temperature characteristics for sensors.
Details compatibility between MDS indoor PCBs, wired handsets, and outdoor PCBs.
Provides dip switch settings for MDS outdoor units based on PCB version and HP rating.
Lists cable types and lengths for various wired handsets, including standard, optional, and maximum lengths.
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