TROUBLESHOOTING

 

Symptom

Problem

 

See Page

NORMAL

Mist or steam are

• During Cooling or Dry operation, a thin mist may be seen emit-

 

FUNCTION

emitted:

ted 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.

 

 

 

 

 

 

 

 

*• During Heating operation, the outdoor unit’s fan may stop, and

 

 

 

steam may be seen rising from the unit. This is due to the Auto-

12

 

 

matic Defrosting operation.

 

 

 

 

 

 

 

Airflow is weak or stops:

*• When Heating operation is started, the fan stops temporarily to

 

 

 

allow internal parts to warm up.

 

 

 

 

*• During Heating operation, if the room temperature rises above

—

 

 

the thermostat setting, the indoor and outdoor unit will stop. If

 

 

 

 

 

you wish to warm the room further, set the thermostat to a higher

 

 

 

setting.

 

 

 

 

 

 

 

 

*• During Heating operation, the unit will temporarily stop operation

 

 

 

(between 4 and 15 minutes) as the Automatic Defrosting mode

12

 

 

operates. During the Automatic Defrosting operation,

will

 

 

 

 

 

be shown on the remote controller display.

 

 

 

 

 

 

 

 

• The fan may operate at low speed when the unit is monitoring

—

 

 

the room’s temperature.

 

 

 

 

 

 

 

 

 

 

Water is produced from

*• During Heating operation, water may be produced from the out-

12

 

the outdoor unit:

door unit due to the Automatic Defrosting operation.

 

 

 

 

 

 

 

 

 

thermo sensor

• The room temperature sensor may be malfunctioning. Please

 

 

consult authorized service personnel.

 

—

 

display on the remote

 

 

 

 

 

 

 

 

 

controller is flashing:

 

 

 

 

 

 

 

 

CHECK ONCE

Doesn’t operate at all:

• Has the circuit breaker been turned off?

 

 

MORE

 

• Has there been a power failure?

 

—

 

 

• Has a fuse blown out, or a circuit breaker been tripped?

 

 

 

 

 

 

 

 

 

• Is the timer operating?

 

—

 

 

 

 

 

 

Poor Cooling (or *Heating)

• Is the air filter dirty?

 

 

 

performance:

• Are the air conditioner’s intake grille or outlet port blocked?

 

 

 

 

 

 

 

 

• Did you adjust the room temperature settings (thermostat) cor-

 

 

 

rectly?

 

 

 

 

• Is there a window or door open?

 

—

 

 

 

 

•In the case of Cooling operation, is a window allowing bright sunlight to enter? (Close the curtains.)

•In the case of Cooling operation, are there heating apparatus and computers inside the room, or are there too many people in the room?

If the problem persists after performing these checks, or if you notice burning smells, stop operation immediately, disconnect the power supply, and consult with authorized service personnel.

11

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Image 12
Fujitsu R410A operation manual Check Once
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R410A specifications

Fujitsu R410A is a state-of-the-art refrigerant commonly used in air conditioning systems and heat pumps. Recognized for its superior thermal efficiency and environmental considerations, R410A has become a popular choice among manufacturers and consumers alike.

One of the standout features of Fujitsu R410A is its high energy efficiency. This refrigerant operates on a higher pressure than traditional refrigerants like R22, which allows for better heat exchange and thus improves the overall performance of HVAC units. The efficiency is evident in both cooling and heating capacities, which contributes to reduced energy costs for end users. As energy efficiency becomes increasingly important, R410A meets the demands of modern consumers looking for sustainable solutions without sacrificing comfort.

Fujitsu incorporates advanced technologies in their R410A systems to enhance performance further. The variable speed inverter technology found in many Fujitsu air conditioning systems allows for more precise temperature control and improved efficiency. By adjusting the compressor speed according to the cooling or heating demand, these systems can operate at a lower capacity when required, reducing energy consumption and maintaining indoor comfort more effectively.

Another characteristic of Fujitsu R410A is its low global warming potential (GWP). While traditional refrigerants have raised concerns about their impact on climate change, R410A has a significantly lower GWP, making it a more environmentally friendly option. The use of R410A helps meet international regulations aimed at reducing greenhouse gas emissions, positioning it as a sustainable choice in the HVAC industry.

Additionally, Fujitsu units utilizing R410A are known for their quiet operation. Advances in design and engineering minimize noise levels, contributing to a more pleasant indoor environment. Noise-reduction technologies, combined with efficient airflow management, ensure that users can enjoy comfort without disruptive sounds.

Furthermore, Fujitsu provides robust support and maintenance services for R410A systems, ensuring optimal performance over their lifespan. Their commitment to reliability is reflected in the build quality and design of the units, which are engineered for longevity and dependability.

In summary, Fujitsu R410A is a premium refrigerant characterized by high energy efficiency, advanced inverter technology, low global warming potential, and quiet operation. These features make it a preferred choice for modern air conditioning and heating solutions, affirming Fujitsu's commitment to innovation in the HVAC industry while prioritizing environmental responsibility.
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