Frigidaire FHWW122WCE00 air conditioner Parts

A 12,000 BTU room air conditioner like the Frigidaire FHWW122WCE00 typically cools about 450 to 550 square feet in average conditions. Real-world coverage depends on insulation, sun exposure, ceiling height, and how much heat and humidity the room gains during the day.

Use these rules of thumb to match BTU to the space:

• Best fit: 450 to 550 sq ft (most living rooms, large bedrooms, small studio areas)
• If the room is very sunny or poorly insulated: plan closer to 400 to 450 sq ft
• If the room is shaded and well insulated: it can feel comfortable closer to 550 to 600 sq ft
• Ceilings over 8 ft: treat the room as larger (more air volume to cool)
• Open floor plans: cooling “spills” into adjacent areas, so the main room may not reach set temperature

These factors often matter more than the BTU number:

• Direct sun through windows (west-facing rooms run hotter)
• Insulation and air leaks around windows and doors
• Humidity level (high humidity reduces comfort even at the same temperature)
• Heat sources like kitchens, computers, TVs, and lighting
• People and pets (more bodies add more heat)

Measure the room and estimate square footage:

If the unit is undersized, it may run constantly and still feel warm. If it is oversized, it can cool the air quickly but remove less moisture, leaving the room feeling clammy.

If cooling seems weak, start with airflow and basic maintenance. A clogged filter can reduce airflow and cooling capacity.

• Clean or replace the room air conditioner air filter 5304520873
• Make sure the front grille and louvres are not blocked by furniture
• Confirm the unit is seated correctly in the sleeve and sealed to reduce hot air infiltration

Last updated: January 2026

If your Frigidaire FHWW122WCE00 room air conditioner runs but is not getting cold, the most common causes are restricted airflow (dirty filter or blocked vents), an iced evaporator coil, or incorrect settings. Start with filter cleaning and a full defrost; these fix many “not cooling” complaints.

• Make sure the mode is COOL, not FAN ONLY or DRY.
• Set temperature at least 5 to 10°F lower than the room temperature.
• Set fan speed to HIGH for faster pull-down cooling.
• Clean or replace the room air conditioner air filter 5304520873.
• Confirm the front grille and louvres are not blocked by curtains or furniture.
• Verify doors and windows in the room are closed to reduce heat load.

A frozen evaporator coil prevents heat transfer, so the air will not feel cold.

• Turn the unit OFF and run FAN ONLY for 30 to 120 minutes to defrost.
• After defrosting, reinstall a clean filter and run COOL again.
• If it refreezes quickly, airflow is still restricted or the room is extremely humid.

If the compressor is not running, the unit may blow room-temperature air.

• Try a power reset: unplug for 2 minutes, then plug back in.
• Check the outlet and breaker; avoid extension cords.
• If the remote is unresponsive or settings will not change, replace the room air conditioner remote control 5304523815.

Room air conditioners depend on steady airflow across the evaporator coil. When airflow is restricted, the coil can ice up and cooling capacity drops sharply, even though the fan still runs.

Last updated: January 2026

The model number for your Frigidaire room air conditioner is printed on the unit’s rating label; on FHWW122WCE00 models, it’s typically on the side of the cabinet, behind the front grille, or near the air filter area. Match the full model number exactly before ordering parts.

Check these common label locations on a window or room air conditioner:

• Behind the front grille or front panel (often near the filter access door)
• On the side of the outer cabinet (left or right side)
• Along the top edge of the chassis after removing the front panel
• Near the power cord entry point
• On the back of the unit near the condenser coil area

If you need to remove the front panel to see the label, use the correct fasteners for your unit, such as the screw 5304520879.

The rating label usually includes the model number, serial number, and electrical information. Copy the model number exactly as shown.

Frigidaire room air conditioner parts can look similar across models, but small differences affect fit and wiring. Using the exact model number helps us match the correct parts list, diagrams, and items like the room air conditioner air filter 5304520873 or room air conditioner remote control 5304523815.

Last updated: March 2026