To Next PageTo Next PageWhat to do if my Lennox Air Conditioner 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 MWMA012S4-*P has low refrigerant?
If your Lennox Air Conditioner has low refrigerant, add refrigerant according to system specifications.
What to do if my Lennox Air Conditioner has high or low voltage protection error?
If your Lennox Air Conditioner displays a high or low voltage protection error, verify the voltage supply levels and correct if required.
How to fix communication error between indoor and outdoor unit in Lennox MWMA012S4-*P?
To address a communication error between the indoor and outdoor units of your Lennox Air Conditioner, check the communication wiring and connections.
What to do if my Lennox MWMA012S4-*P has a high water level alarm?
If your Lennox Air Conditioner is showing a high water level alarm, clear any blockage from the drain system.
How to reset outdoor current overload on Lennox MWMA012S4-*P?
If your Lennox Air Conditioner senses an outdoor current overload, reset the overload protection if it has tripped.
How to troubleshoot indoor fan speed error on Lennox MWMA012S4-*P?
To troubleshoot an indoor fan speed error on your Lennox Air Conditioner, inspect the fan and motor for proper operation.
What to do if my Lennox MWMA012S4-*P shows an outdoor unit fan speed error?
If your Lennox Air Conditioner displays an outdoor unit fan speed error, check the fan for operational issues.
How to fix compressor drive error in Lennox MWMA012S4-*P Air Conditioner?
To fix a compressor drive error in your Lennox Air Conditioner, inspect the compressor and associated drive components.
What to do for compressor pressure switch issues in Lennox MWMA012S4-*P Air Conditioner?
If your Lennox Air Conditioner has a compressor high-pressure or low-pressure switch open, investigate system pressures and correct abnormalities.
General| Cooling Capacity (BTU/hr) | 12, 000 |
|---|---|
| EER | 11.5 |
| Voltage (V) | 208/230 |
| Phase | 1 |
| Hertz (Hz) | 60 |
| Refrigerant | R-410A |
Specifies the required clearances around single-zone outdoor units for proper ventilation and service access.
Specifies the required clearances for M22A, M33A, and M33B cassette indoor units.
Specifies required clearances for MCFA and MCFB ceiling/floor indoor units.
Details limitations for refrigerant pipe length and elevation for single-zone systems.
Instructions and diagrams for correctly installing indoor unit gravity drain lines.
Details requirements for condensate piping when using an indoor unit lift pump.
Instructions for adding refrigerant to single-zone systems based on pipe length.
Explains how to check compressor windings resistance for shorts and terminal identification.
Details the procedure to measure resistance across IPM terminals for testing.
