Window AC FAQs

Guide based on normal room insulation, average number of sun exposed windows and two person occupancy.

1. If heavily shaded, reduce cooling Btus required by 10%
2. If very sunny, increase cooling Btus required by 10%
3. Add 500 Btus per person over 2 people
4. Add 4,000 Btus if the area is a kitchen

*disclaimer - Room Size by square footage is an approximation. Please contact an HVAC professional for more information. 

Fixed chassis window ACs are all one piece where the frame of the AC is attached or "fixed" to the internal components of the AC. These models are exclusively for window installation ONLY. Slide-out chassis window AC units have a frame or sleeve that can be removed for installation and once installed, the internal chassis "slides" in.  These AC units can be installed in both a window and through the wall for more permanent applications.  For specific models available by Friedrich, see this Installation FAQ.

Yes! Friedrich Kühl, and Chill Premier models built in 2019 or later, come with wi-fi built into the unit. For more information, check out the FriedrichLink Page with info about all connected devices.

Yes! Friedrich Kühl, and Chill Premier models built in 2019 or later, can be controlled with our FriedrichConnect or FriedrichGo app using a smart device, or voice command through Amazon Alexa or Google Home. For more information, check out the FriedrichLink Page with info about all connected devices.

Click here to view all window A/C installation and operation manuals found in our Consumer Product Resource Library. 

The window A/C product category and manual type have already been selected, so you can search by your specific model type.  

It depends. Fixed chassis window ACs can only be installed in a window. Friedrich Chill Premier models CCF05, CCF06, CCF10, and CCF12 are fixed chassis. Slide-out chassis window AC's offer both options and can be installed in a window or through the wall. All other Friedrich Chill Premier CCW and CEW models, as well as all Kühl models, are slide-out chassis. 

The "MODE" button lets you select the mode of operation on your Kühl AC unit. On Cool only models, the "MODE" button cycles between COOL or FAN ONLY.  On Heat/Cool models, the "MODE" button cycles between AUTO (heat or cool depending on set point), HEAT, COOL, or FAN ONLY. 

The filter light is a reminder to clean out your filter. On average, the filter should be cleaned every 2-3 weeks, but that can vary based on use.  You can reset your filter light by pressing the "FILTER" button. 

The "CHECK FILTER" light is a reminder to clean out your filter. On average, the filter should be cleaned every 2-3 weeks, but that can vary based on use.  You can reset your "CHECK FILTER" light by pressing the "FAN" and "SPEED" buttons at the same time for 3 seconds. 

While the carbon filter provides superior filtration for your unit, yes - the unit can still operate without the carbon filter.

For optimal performance, it's best to clean the filters every 2-3 weeks, depending on how frequently it's used. Once you've cleaned the air filter a few times you will get a better idea of how much dirt is collected in the filter and you can adjust the schedule, as needed.

The Limited Manufacturer's Warranty includes parts and labor covered from any manufacturer defect for the first year from the date of purchase. The 2nd through 5th year of the limited warranty the sealed refrigeration system is still covered from manufacturer defect, and is just required to obtain a servicer's report or diagnosis stating that the unit has an issue related to the refrigerant system.

1. The unit must be purchased from an authorized Friedrich dealer.
2. A service report from a certified technician stating the issue is a result of a manufacturer defect.

Water leaking into the room is generally caused by either the unit sitting level in the window or the unit needing to be cleaned. Water collects in the front of the unit and then travels to the back where the slinger ring will toss it against the coils in the back and then the water evaporates. If the unit does not have the proper slope from front to back, then the water will leak out the front. Another possibility is dirt or debris clogging the interior of the unit and restricting water from flowing to the back, causing it to leak out the front. Having your unit cleaned will solve this problem. If you feel that neither of these conditions exist then you need to make sure that there is no air leaking in from the outside around the unit anywhere. Leaking air will cause condensation to form on the outside of the unit which will leak into your room. If there are any air leaks you will need to reseal these areas.

Icing can be caused by a number of factors. Units that have not been cleaned over a long period of time may have coils and fins clogged by dust, dirt or debris. Clogged coils and fins restrict air flow through the unit, which can cause the compressor to work even harder – so hard, that it may reduce the coil temperature below the normal range in an attempt to make up for the lost cooling power from the blocked coils. Another potential cause is running a unit with a very cold set point (i.e. turning the target temperature down very low) on low fan speed for an extended period of time. This can cause excess condensate to build up on the coils, further lowering the temperature of the coil and leading to icing. It may be helpful to ask an authorized warranty servicer to check the unit for you.