HEAT / COOL ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS

Problem

Possible Cause

Possible Solution

 

Bad indoor ambient thermistor

Check error codes. Replace as needed.

Room temperature

 

 

Fan speed too low

Set at higher fan speed.

uneven

 

 

Opened door, windows, etc.

Close doors, windows, etc.

(Heating cycle)

 

ATSF (room air sampling feature) disabled

Enable ATSF

 

 

 

Problem

Possible Cause

Possible Solution

 

Bad outdoor coil thermistor

Replace thermistor.

 

 

 

Unit will not defrost

 

• On heat pumps with electric heat: no action needed

(Heat pump

 

• On model YS10N10: do not operate below 37°F/ 0°C

only models)

Temperature below 32°F/ 0°C

• If outdoor air temp is higher than freezing, check

 

 

 

reversing valve, electric coil, outdoor thermistor,

 

 

refrigerant circuits, etc.

 

 

• For proper operation: correct as needed

 

 

 

Problem

Possible Cause

Possible Solution

 

Exhaust or fresh air door open

Check if operating properly. Instruct customer on

 

proper use of control

 

 

 

Dirty filter

Clean as recommended in Owner's Manual

 

 

Check heat rise across coil. If unit operates

 

Unit undersized

efficiently, check if insulation can be added

 

to attic or walls. If insulation is adequate,

Does not heat

 

 

recommend additional unit or larger one

adequately

 

 

 

Outdoor coil thermistor or electronic control

Check alarms (error codes). Replace thermistor

 

 

board defective

or electronic control board.

 

Heater hi-limit control cycling on & off

Check for adequate fan air across heater. Check

 

for open hi-limit control.

 

 

 

 

 

 

Shorted or open supplementary heater

Do ohmmeter check.

 

 

 

 

Incorrect wiring

Check applicable wiring diagram

 

 

 

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Friedrich SS12N10*, SS14N10*, SS15N30*, SS10N10*, SM18N30* Heat / Cool only Room AIR Conditioners Troubleshooting Tips

SM18N30*, SS10N10*, SS15N30*, SS12N10*, SS14N10* specifications

Friedrich air conditioners, particularly models SS14N10*, SS12N10*, SS15N30*, SS10N10*, and SM18N30*, are renowned for their reliable performance, innovative technologies, and user-friendly features. Designed for both residential and commercial use, these units stand out due to their energy efficiency, advanced cooling capabilities, and versatile operation.

One of the standout features across these models is their energy efficiency. Equipped with high SEER (Seasonal Energy Efficiency Ratio) ratings, they help users save on energy costs while reducing their carbon footprint. Specifically, the SS14N10* and SS12N10* models excel in cooling efficiency, ensuring that the spaces they occupy remain comfortably cool even in the hottest conditions. This not only contributes to lower energy bills but also promotes environmental sustainability.

The cooling technologies integrated into these units include advanced inverter technology. This feature allows the compressor to adjust its speed according to the cooling demand of a room. As a result, these air conditioners maintain desired temperatures with minimal fluctuations, ensuring optimal comfort and significant energy savings. Models like SS15N30* and SM18N30* are particularly stellar in maintaining efficiency even during peak usage hours.

Moreover, these air conditioners are equipped with multi-stage filtration systems that enhance indoor air quality. The filters effectively capture dust, allergens, and other pollutants, resulting in cleaner and healthier air for occupants. This is especially important for individuals with allergies or respiratory issues.

User-friendly controls add another layer of convenience. Many models incorporate smart technology allowing users to control the units via mobile apps or home automation systems. This feature enables remote operation, scheduling, and real-time monitoring, making it easier to manage climate conditions effectively.

In terms of design, models like SS10N10* prioritize aesthetics without compromising functionality. They feature sleek, modern designs that seamlessly integrate into various decors, whether in a home or an office. Additionally, quiet operation technology reduces noise levels during functionality, enhancing comfort, particularly in bedrooms or quiet office environments.

Overall, Friedrich’s SS14N10*, SS12N10*, SS15N30*, SS10N10*, and SM18N30* models embody the brand's commitment to innovation and customer satisfaction. Their blend of energy efficiency, advanced cooling technology, air quality enhancement, and smart controls positions them as leaders in the air conditioning market, catering to diverse cooling needs while promoting a sustainable future.