TROUBLESHOOTING

In the event of a malfunction (burning smell, etc.), immediately stop operation, disconnect the

WARNING! Power Supply Plug, and consult authorized service personnel.

Merely turning off the unit’s power switch will not completely disconnect the unit from the power source. Always be sure to disconnect the Power Supply Plug or turn off your circuit breaker to ensure that power is completely off.

Before requesting service, perform the following checks:

 

Symptom

Problem

See Page

 

 

 

 

NORMAL

Doesn’t operate immedi-

● If the unit is stopped and then immediately started again, the com-

 

FUNCTION

ately:

pressor will not operate for about 3 minutes, in order to prevent

 

 

 

fuse blowouts.

 

 

● Whenever the Power Supply Plug is disconnected and then re-

 

 

 

 

 

connected to a power outlet, the protection circuit will operate for

 

 

 

about 3 minutes, preventing unit operation during that period.

 

 

 

 

 

 

Noise is heard:

● During operation and immediately after stopping the unit, the

 

 

 

sound of water flowing in the air conditioner’s piping may be

 

 

 

heard. Also, noise may be particularly noticeable for about 2 to 3

 

 

 

minutes after starting operation (sound of coolant flowing).

 

 

● During operation, a slight squeaking sound may be heard. This is

 

 

 

the result of minute expansion and contraction of the front cover

 

 

 

due to temperature changes.

 

 

 

 

 

 

Smells:

● Some smell may be emitted from the indoor unit. This smell is

 

 

the result of room smells (furniture, tobacco, etc.) which have

 

 

 

 

 

been taken into the air conditioner.

 

 

 

 

 

 

Mist or steam are

● During Cooling or Dry operation, a thin mist may be seen emitted

 

 

emitted:

from the indoor unit. This results from the sudden Cooling of

 

 

room air by the air emitted from the air conditioner, resulting in

 

 

 

condensation and misting.

 

 

 

 

 

 

Airflow is weak or stops:

● The fan may operate at very low speed during Dry operation or

5

 

 

when the unit is monitoring the room’s temperature.

 

 

 

 

 

 

 

 

 

● During SUPER QUIET operation, the fan will operate at very low

5

 

 

speed.

 

 

 

 

 

 

 

 

 

● In the monitor AUTO operation, the fan will operate at very low

5

 

 

speed.

 

 

 

 

 

 

 

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Friedrich MW18C3F, MR18C3F operation manual Troubleshooting, En-13, Symptom Problem, Normal, Function

MR18C3F, MW18C3F specifications

The Friedrich MW18C3F and MR18C3F are two innovative air conditioning units designed to provide optimal comfort and efficiency in home and office environments. Both models are part of Friedrich's commitment to delivering high-quality climate control solutions that cater to various needs and preferences.

One of the standout features of the MW18C3F and MR18C3F is their advanced inverter technology. This technology enables the units to adjust their cooling capacity according to the ambient temperature, ensuring that energy consumption is minimized while still maintaining a comfortable environment. By operating at variable speeds, the inverter systems reduce energy waste, making these units eco-friendly options.

The MW18C3F is equipped with a cooling capacity of 18,000 BTU, making it suitable for medium to large spaces, while the MR18C3F model offers similar cooling performance with added versatility for different installation options. Both models boast a high EER (Energy Efficiency Ratio) rating, which indicates excellent energy efficiency, leading to lower utility bills while still being effective in combating heat.

Another significant characteristic of these models is their smart technology integration. The Friedrich MW18C3F and MR18C3F offer Wi-Fi connectivity, allowing users to control the system remotely via a smartphone app. This feature provides unparalleled convenience, enabling users to set schedules, adjust temperatures, and monitor energy consumption from virtually anywhere. The app also supports voice commands, compatible with major smart home platforms, enhancing user experience.

In terms of design, both units feature a sleek and modern aesthetic that blends well with most interior décors. They come with a user-friendly interface, simplifying operation and customization of settings. The units are also designed with noise reduction technologies, ensuring that they operate quietly, making them suitable for bedrooms and workspaces where tranquility is crucial.

The filtration system in the MW18C3F and MR18C3F is another important aspect, featuring washable filters that help maintain indoor air quality by trapping dust and allergens. This not only improves the comfort of users but also prolongs the lifespan of the units by preventing buildup of dirt and debris.

Overall, the Friedrich MW18C3F and MR18C3F showcase a combination of advanced technology, energy efficiency, and user-friendly features. With their modern design and smart capabilities, these air conditioners stand out as excellent choices for anyone looking to enhance their indoor climate control while being mindful of energy consumption.