P
patriciadukeAug 20, 2025
What to do if my Lennox Air Conditioner has a high water level alarm?
- Kkevin64Aug 20, 2025
If your Lennox Air Conditioner triggers a high water level alarm, clear any blockage in the drain line.
To Next PageTo Next PageWhat to do if my Lennox Air Conditioner has a high water level alarm?
If your Lennox Air Conditioner triggers a high water level alarm, clear any blockage in the drain line.
What to do if my Lennox MCFA036S4-*P shows an outdoor EEPROM malfunction?
If your Lennox Air Conditioner displays an outdoor EEPROM malfunction, try these steps: * Power off the unit, then restart it after 3 minutes. * If the issue persists, the outdoor main PCB may need to be replaced.
What to do if my Lennox Air Conditioner has a communication error between the indoor and outdoor unit?
If your Lennox Air Conditioner displays a communication error between the indoor and outdoor units, check the wiring and connections between these units to ensure they are properly connected.
What to do if my Lennox Air Conditioner is experiencing high or low voltage protection?
If your Lennox Air Conditioner is experiencing high or low voltage protection, check the power supply and ensure voltage levels are within the proper specifications.
What to do if my Lennox MCFA036S4-*P's outdoor unit senses a current overload?
If your Lennox Air Conditioner's outdoor unit senses a current overload, inspect the electrical connections and the compressor for any issues.
What to do if my Lennox MCFA036S4-*P Air Conditioner's compressor high-pressure or low-pressure switch is open?
If the compressor high-pressure or low-pressure switch is open in your Lennox Air Conditioner, check the pressure switches and refrigerant levels.
What to do if my Lennox MCFA036S4-*P Air Conditioner shows an indoor fan speed error?
If your Lennox Air Conditioner displays an indoor fan speed error, inspect the indoor fan motor for proper functionality.
What to do if my Lennox MCFA036S4-*P shows an outdoor unit fan speed error?
If your Lennox Air Conditioner displays an outdoor unit fan speed error, check for any obstructions and test the outdoor fan motor.
What to do if my Lennox MCFA036S4-*P displays an outdoor ambient temperature sensor error?
If your Lennox Air Conditioner displays an outdoor ambient temperature sensor error, test the sensor and replace it if it is faulty.
What to do if my Lennox Air Conditioner displays an indoor return air temperature sensor error?
If your Lennox Air Conditioner displays an indoor return air temperature sensor error, replace the indoor return air temperature sensor.
General| Brand | Lennox |
|---|---|
| Model | MCFA036S4-*P |
| Category | Air Conditioner |
| Language | English |
Provides detailed specifications for MPA Single-Zone outdoor units of 0.75 to 1.5 Ton capacity.
Covers specifications for MPB Single-Zone outdoor units from 2 to 4 Ton capacity.
Details specifications for MPA Multi-Zone outdoor units of 1.5 to 2.5 Ton.
Covers specifications for MPA Multi-Zone outdoor units from 3 to 4 Ton capacity.
Details the technical specifications for the M22A cassette indoor unit.
Provides the technical specifications for M33A and M33B cassette indoor units.
Provides technical specifications for MMDA ducted indoor units.
Details specifications for MWMA/MWMB units of 0.75 and 1 Ton.
Provides specifications for MWMA/MWMB units of 1.5 to 2.5 Ton.
Lists valid indoor/outdoor unit combinations for MPA multi-zone systems.
Details valid indoor/outdoor unit combinations for MPB multi-zone systems.
Provides valid indoor/outdoor unit combinations for MLA multi-zone systems.
Provides instructions and tables for adding refrigerant to single-zone systems.
Details how to add refrigerant to multi-zone systems based on pipe length and zones.
Lists error codes for single-zone outdoor units based on LED indicators.
Provides error codes for multi-zone outdoor units, categorized by display.
Lists fault codes for indoor units, categorized by capacity and display.
Troubleshooting steps for outdoor unit EEPROM malfunction (Error Code E0).
Troubleshooting steps for communication errors between indoor and outdoor units (Error Code E2).
Troubleshooting steps for communication errors between outdoor unit main control and IPM (Error Code E3).
Troubleshooting steps for temperature sensor errors (outdoor coil, ambient, discharge, indoor coil) (Error Code E4).
Troubleshooting steps for PFC module protection (Error Code E6).
Troubleshooting steps for outdoor DC fan motor speed errors (Error Code E8).
Troubleshooting steps for high pressure switch open errors (Error Code P1).
Troubleshooting steps for low pressure switch open errors (Error Code P2).
Troubleshooting steps for IPM module or IGBT overcurrent protection (Error Code P6).
Instructions for checking compressor windings resistance for shorts and terminal identification.
Steps for measuring IPM resistance values between terminals to check for faults.
