To Next PageTo Next PageWhat to do if my Carrier Performance 40MBDQ Air Conditioner showing overload protection?
If your Carrier Air Conditioner is showing an overload protection error, check the system load and reset the protection.
What to do if my Carrier Performance 40MBDQ showing over voltage or over low voltage protection?
If your Carrier Air Conditioner shows an over voltage or over low voltage protection error, verify the voltage levels and circuit integrity.
What to do if my Carrier Performance 40MBDQ Air Conditioner has high temperature protection of compressor top diagnosis?
If your Carrier Air Conditioner activates high temperature protection for the compressor (9K, 12K models only), allow the compressor to cool down.
What to do if my Carrier Performance 40MBDQ Air Conditioner's indoor room temperature sensor T1 is open or short circuit?
If your Carrier Air Conditioner indicates that the indoor room temperature sensor T1 is open circuit or short circuit, check the T1 temperature sensor connection and consider replacement.
What to do if my Carrier Performance 40MBDQ Air Conditioner's evaporator coil temperature sensor T2 is open or short circuit?
If your Carrier Air Conditioner indicates that the evaporator coil temperature sensor T2 is open circuit or short circuit, check the T2 temperature sensor connection and consider replacement.
What to do if my Carrier Air Conditioner's condenser coil temperature sensor T3 is open or short circuit?
If your Carrier Air Conditioner indicates that the condenser coil temperature sensor T3 is open circuit or short circuit, check the T3 temperature sensor connection and consider replacement.
What to do if my Carrier Air Conditioner's outdoor ambient temperature sensor T4 is open or short circuit?
If your Carrier Air Conditioner indicates that the outdoor ambient temperature sensor T4 is open circuit or short circuit, check the T4 temperature sensor connection and consider replacement.
What to do if my Carrier Air Conditioner's compressor discharge temperature sensor T5 is open or short circuit?
If your Carrier Air Conditioner indicates that the compressor discharge temperature sensor T5 is open circuit or short circuit, check the T5 temperature sensor connection and consider replacement.
General| HSPF | Up to 9.5 |
|---|---|
| Refrigerant | R-410A |
| Voltage | 208/230V |
| Sound Level (Outdoor Unit) | As low as 72 dBA |
| Compressor Type | Scroll |
| Warranty | 10-year parts limited warranty |
Details severe risks of explosion from improper handling of pressurized gases.
Warns against improper installation or operation causing equipment failure.
Highlights risks of electrocution during installation or service.
Specifies requirements for safe and compliant product installation.
Guidelines for safely connecting power and communication wiring.
Steps to set static pressure or automatic airflow using the wired controller.
Procedure for setting static pressure with the 24V interface.
Table listing diagnostic codes and their corresponding LED status.
