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Carrier 38GL...G - User Manual

Carrier 38GL...G
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38GL...G / 38GLS...G
38YY...G / 38YYS...G
INSTALLATION MANUAL
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Questions and Answers

  • S
    Sean StoneAug 17, 2025
    What to do if my Carrier 38GL...G Air Conditioner compressor runs continuously?
    • B
      Brent SmithAug 17, 2025
      If the compressor in your Carrier Air Conditioner runs continuously, you can check the temperature selection. Also, the refrigerant level should be checked and replenished if low. If these steps don't resolve the issue, consider replacing the component, draining and recharging the refrigerant, or removing any obstructions from the filter.
  • M
    Matthew ShortAug 19, 2025
    What to do if my Carrier 38GL...G Air Conditioner compressor and fan of the outdoor unit will not start?
    • B
      Bobby BirdAug 19, 2025
      If the compressor and fan of the outdoor unit of your Carrier Air Conditioner do not start, check the mains power connections and ensure the switch is in the ON position. If necessary, replace the component. Wait for 3 minutes, check for any causes and eliminate them and check and repair.
  • J
    Joseph WoodsAug 22, 2025
    What to do if the outdoor fan motor on my Carrier 38GL...G is running always at low speed?
    • E
      Elizabeth PopeAug 22, 2025
      If the outdoor fan motor of your Carrier Air Conditioner is always running at low speed, check the connections between the temperature sensor and the board. If the connections are correct, consider replacing the sensor or the board.
  • B
    bedwardsAug 25, 2025
    What to do if my Carrier 38GL...G Air Conditioner compressor starts, but stops due to its overtemperature protection?
    • N
      Nancy JacksonAug 26, 2025
      If the compressor of your Carrier Air Conditioner starts but stops due to overtemperature protection, drain the refrigerant, evacuate, and recharge the system. Remove any obstructions, check the cause and repair, check and replace if needed and check and remove any obstructions. Also, consider replacing the component.
  • J
    johnsanchezAug 27, 2025
    What to do if the discharge pressure is too high on my Carrier 38GL...G?
    • N
      Nicole PotterAug 28, 2025
      If the discharge pressure is too high on your Carrier Air Conditioner, clean or remove any obstructions. If this doesn't resolve the issue, consider replacing the component, draining some refrigerant, or draining, evacuating, and recharging the refrigerant.
  • J
    James RichardsonAug 30, 2025
    What to do if the discharge pressure is too low on my Carrier 38GL...G Air Conditioner?
    • B
      Bryan BrooksAug 30, 2025
      If the discharge pressure is too low on your Carrier Air Conditioner, add refrigerant. Additionally, ensure there are no obstructions and clean the filter.
  • T
    Thomas BaxterSep 2, 2025
    What to do if the outdoor fan motor on my Carrier Air Conditioner is running always at high speed?
    • C
      Curtis MartinSep 2, 2025
      If the outdoor fan motor of your Carrier Air Conditioner runs at high speed constantly, replace the temperature sensor or the board.
  • E
    Emily PrattSep 4, 2025
    What to do if my Carrier Air Conditioner compressor will not start, but outdoor fan is running?
    • J
      John PattonSep 5, 2025
      If the compressor of your Carrier Air Conditioner does not start, but the outdoor fan is running, check and repair the component. Also, check for the cause and replace the compressor if necessary. If needed, replace the component.
  • R
    Rachel BlankenshipSep 7, 2025
    What to do if the suction pressure is too high on my Carrier Air Conditioner?
    • N
      nicholaswashingtonSep 7, 2025
      If the suction pressure is too high on your Carrier Air Conditioner, drain some refrigerant or replace the component.
  • M
    Monica HowardSep 10, 2025
    What to do if the suction pressure is too low on my Carrier 38GL...G?
    • L
      Laura StoneSep 12, 2025
      If the suction pressure is too low on your Carrier Air Conditioner, add refrigerant. Also, check for the cause and repair and check and repair. Check the electrical connections.

Summary

Dimensions and Weight

Connections

Details on pipe diameters, lengths, and height differences for unit connections.

Minimum Clearances

System Charge

Refrigerant charge and extra charge information for various models and pipe lengths.

General Information

Unit Installation

Guidelines for installing the unit, including power supply and pipe requirements.

Choosing the Installation Site

Recommendations for selecting an appropriate installation location and site preparation.

Warnings: Avoid

Refrigerant Connections

Flaring the Ends of the Tubing

Procedures and torque specifications for properly flaring copper tubing ends.

Connection to Unit

Steps for connecting refrigerant lines to the unit, including torque values.

Air Purging

Method for removing air from the refrigerant circuit using a vacuum pump.

Operating Limits

Maximum and minimum operating conditions for cooling and heating modes.

Electrical Connections

Electrical Data

Table detailing power input, starting current, and wire size for various models.

Pump Down and Refrigerant Circuit

Pump-down

Procedure to collect refrigerant in the outdoor unit before disconnection.

Refrigerant Circuit

Diagrams illustrating the refrigerant flow for cooling and heating cycles.

Unit Maintenance, Troubleshooting and Guide for the Owner

Unit Maintenance

Procedures for cleaning the coil and maintenance after long shutdowns.

Troubleshooting

Common issues and their potential causes and solutions for the unit.

Guide for the Owner

Instructions for the owner on operation, maintenance, and manuals.

Carrier 38GL...G Specifications

General IconGeneral
BrandCarrier
Model38GL...G
CategoryAir Conditioner
LanguageEnglish

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