Carrier 40SMC009N User Manual

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40SMC---N

INSTALLATION MANUAL

Table of Contents

Questions and Answers:

T
Terri ShafferAug 13, 2025
What to do if my Carrier 40SMC009N Air Conditioner compressor and fan of the outdoor unit will not start?
- J
  John RamseyAug 13, 2025
  If the compressor and fan of the outdoor unit won't start, begin by checking the mains power connections and ensuring the unit is switched to the ON position. If that doesn't work, wait for 3 minutes to see if the compressor cycling protection is active. Check and eliminate the cause (refer to “Additional installation instructions”). Also, examine the electrical connections for looseness or errors and repair them if necessary.
C
Courtney ClarkAug 16, 2025
Why does my Carrier 40SMC009N compressor run continuously?
- K
  krodriguezAug 16, 2025
  If the compressor runs continuously, check the temperature selection. A low refrigerant charge could also be the cause, so verify and add refrigerant if needed. Additionally, air or other non-condensable gases in the circuit might be the issue, requiring you to drain the refrigerant, evacuate, and recharge the system. Finally, check for any obstructions and clean the filter.
C
Christopher ColemanAug 21, 2025
What to do if my Carrier 40SMC009N Air Conditioner discharge pressure is too high?
- P
  peter56Aug 21, 2025
  If the discharge pressure is too high, start by cleaning the outdoor coil or removing any obstructions. If the refrigerant charge is too high, drain some refrigerant. Also, if there is air or other non-condensable gases in the circuit, drain the refrigerant, evacuate, and recharge the system. Check the head pressure controller by connecting the fan directly and replace the HPC if necessary.
E
Erin MayoAug 25, 2025
What to do if my Carrier Air Conditioner compressor will not start, but outdoor fan is running?
- A
  Adam FrankAug 25, 2025
  If the compressor won't start but the outdoor fan is running, check the compressor's electrical connections for looseness or errors and repair them. Also, the compressor might be burnt out, seized, or its protection device could be activated, so check for the cause and replace the compressor if necessary.
K
Kathryn BentonAug 28, 2025
What to do if my Carrier 40SMC009N has frequent ice build-up on outdoor coil during heating?
- K
  kathleendavisAug 28, 2025
  If there's frequent ice build-up on the outdoor coil during heating, check if the outdoor fan is working correctly and repair if needed. Also, check the electrical connections between the indoor and outdoor units and repair any wrong connections.
X
Xavier FarmerSep 1, 2025
What to do if my Carrier Air Conditioner compressor starts, but stops due to its overtemperature protection?
- C
  Cheryl ReidSep 1, 2025
  If the compressor starts but stops due to overtemperature protection, it could be due to a wrong refrigerant charge (excessive or low) or air/non-condensable gases in the circuit; in this case, drain refrigerant, evacuate, and recharge. Remove any obstructions. Check cause and repair. Check and replace. Check and remove obstructions.
G
George KelleySep 4, 2025
What to do if my Carrier 40SMC009N Air Conditioner discharge pressure is too low?
- W
  Willie TorresSep 4, 2025
  If the discharge pressure is too low, it could be due to a low refrigerant charge, in which case you should add refrigerant. Another cause could be a dirty or obstructed outdoor coil, so clean or remove any obstructions. Also, a dirty indoor unit air filter can cause this issue, so clean the filter.
C
Crystal GarciaSep 8, 2025
What causes outdoor fan cycling due to its overtemperature protection in Carrier Air Conditioner?
- C
  Christine CollinsSep 8, 2025
  If the outdoor fan is cycling due to its overtemperature protection, the fan capacitor might be faulty, so replace it. Check connections and repair.

Carrier 40SMC009N Specifications

General

Cooling Capacity	9, 000 BTU/h
Refrigerant	R-410A
Type	Mini-Split
Weight (Outdoor Unit)	29 kg
Power Supply	1 Phase, 60Hz
SEER	16
Voltage (V)	208-230

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