Mitsubishi Electronics MUZ-GE15NA, MUY-GE12NA Electromagnetic noise enters into TV sets or radios

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N Electromagnetic noise enters into TV sets or radios

Is the unit grounded?

Yes

Is the distance between the antennas and the indoor unit within 9.91 ft., or is the distance between the antennas and the outdoor unit within 9.91 ft.?

No

Is the distance between the TV sets or radios and the indoor unit within 3.28 ft., or is the distance between the TV sets or radios and the outdoor unit within 9.91 ft.?

No

Are the antennas damaged? Is the coaxial cable damaged?

Is there any poor contact in the anten- na wiring?

No

Is the indoor/outdoor connecting wire of the air conditioner and the wiring of the antennas close?

No

No

Yes

Yes

Yes

Yes

Ground the unit.

Extend the distance between the antennas and the indoor unit, and/or the antennas and the

outdoor unit.

Extend the distance between the TV sets and/or radios and the indoor unit, or the TV sets or

radios and the outdoor unit.

Replace or repair the antenna.

Replace or repair the coaxial cable.

Extend the distance between the indoor/outdoor connecting wire of the air conditioner and the wir-

ing of the antennas.

Even if all of the above conditions are fulfilled, the electromagnetic noise may enter, depending on the electric field strength or the installation condition (combination of specific conditions such as antennas or wiring).

Check the followings before asking for service.

1.Devices affected by the electromagnetic noise TV sets, radios (FM/AM broadcast, shortwave)

2.Channel, frequency, broadcast station affected by the electromagnetic noise

3.Channel, frequency, broadcast station unaffected by the electromagnetic noise

4.Layout of:

indoor/outdoor unit of the air conditioner, indoor/outdoor wiring, grounding wire, antennas, wiring from antennas, receiver

5.Electric field intensity of the broadcast station affected by the electromagnetic noise

6.Presence or absence of amplifier such as booster

7.Operation condition of air conditioner when the electromagnetic noise enters in

1)Turn OFF the power supply once, and then turn ON the power supply. In this situation, check for the electromagnetic noise.

2)Within 3 minutes after turning ON the power supply, press OPERATE/STOP (ON/OFF) button on the remote controller for power ON, and check for the electromagnetic noise.

3)After a short time (3 minutes later after turning ON), the outdoor unit starts running. During operation, check for the elec- tromagnetic noise.

4)Press OPERATE/STOP (ON/OFF) button on the remote controller for power OFF, when the outdoor unit stops but the indoor/outdoor communication still runs on. In this situation, check for the electromagnetic noise.

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Contents Outdoor Unit Technical Changes Part Names and Functions MUZ-GE09NA MUY-GE09NA MUZ-GE12NA MUY-GE12NA SpecificationRefrigerant charge R410A Lb oz MUZ-GE15NA MUY-GE15NA MUZ-GE18NA MUY-GE18NAARI Operating RangeSeer HspfUnit inch Outlines and DimensionsWiring Diagram MUZ-GE15NA MUY-GE15NA MUZ-GE18NA MUY-GE18NA LEV Refrigerant System DiagramØ3/8 GE12NA Ø1/2 GE15NAMUZ-GE09/12/15NA MUY-GE09/12/15NA GE15 MUZPerformance Data DataMUZ-GE09NA MUY-GE09NA Performance Curve CoolingMUZ-GE12NAMUZ-GE15NA MUY-GE12NAMUY-GE15NA Heating MUZ MUZ-GE18NA MUY-GE18NAMUZ-GE09NA MUZ-GE12NA MUZ-GE15NA MUZ-GE18NAMUZ-GE12NA MUY-GE12NA Condensing Pressure CoolingMUZ-GE15NA MUY-GE15NA MUZ-GE09NA MUZ-GE15NA MSZ-GE09NA MSZ-GE12NA MSY-GE09NA MSY-GE12NA Standard Operation DataSHF MSZ-GE09NA, MSY-GE09NA MSZ-GE12NA, MSY-GE12NAMSZ-GE15NA, MSY-GE15NA MSZ-GE18NA, MSY-GE18NA MSZ-GE15NA MSZ-GE18NA MSY-GE15NA MSY-GE18NAMUZ-GE15NA MUZ-GE18NA MUZ-GE15NA MUZ-GE18NA MUY-GE15NA MUY-GE18NACorrection of Cooling capacity HOW to Operate FIXED-FREQUENCY Operation Test run operationOutdoor FAN Motor Control Actuator ControlR.V. Coil Control MUZ Relation Between Main Sensor and ActuatorTroubleshooting Service FunctionsChange in Defrost Setting MUZ PRE-HEAT Control SettingFailure Mode Recall Function Operational procedure LED Outdoor unit failure mode tableTroubleshooting Check Table GE09 GE12 GE15/18 Trouble Criterion of Main PartsGE09/12 GE15 GE18 Check of open phase How to check inverter/compressorTroubleshooting Flow Check of compressorCheck of compressor operation time Check of compressor windingCheck of compressor start failure BLK WHT BLK RED WHT REDUnit operates Heat mode even if it is set to Cool mode Unit operates Cool mode even if it is set to Heat modeCheck of outdoor thermistors Check of R.V. coil MUZCheck of outdoor fan motor MUZ-GE09/12/15NA MUY-GE09/12/15NACheck of power supply Check of LEV Expansion valve Emergency Operation Check of inverter P.C. boardHow to check miswiring and serial signal error Electromagnetic noise enters into TV sets or radios Inverter P.C. board Test Point Diagram and VoltageLED LEV LED Removing the cabinet Photo Disassembly InstructionsPhoto 4 Inverter assembly Removing the inverter assembly, inverter P.C. board PhotoPhoto Removing the discharge temperature thermistor Removing R.V. coil MUZRemoving the compressor and 4-way valve Removing outdoor fan motor PhotoMUZ-GE18NA MUY-GE18NA Operating Procedure Photos Photo5 Removing R.V. coilRemoving outdoor fan motor Page Page Distributed in Jul . No. OBH 549 New publication, effective JulMade in Japan

MUZ-GE09NA, MUZ-GE15NA, MUY-GE15NA, MUZ-GE18NA, MUZ-GE12NA specifications

Mitsubishi Electronics offers a range of advanced air conditioning systems, including the MUY-GE12NA, MUY-GE18NA, MUY-GE09NA, MUZ-GE12NA, and MUZ-GE18NA models. These units are designed for optimal energy efficiency and superior comfort, making them ideal for residential and commercial applications.

One of the standout features of these models is their inverter technology. By adjusting the compressor speed according to the cooling or heating demand, inverter systems provide precise temperature control while significantly reducing energy consumption compared to traditional units. This not only translates to lower utility bills but also less environmental impact.

The MUY-GE series units come with a user-friendly remote control that allows for easy adjustments of temperature settings, fan speeds, and operational modes. Smart operation modes include cooling, heating, and dehumidification, thereby catering to various climate needs. The units also include a programmable timer, enabling users to set the air conditioner to operate at specific times, enhancing convenience and efficiency.

Another impressive characteristic is the advanced air filtration system. Mitsubishi integrates a multi-stage filtration mechanism that includes a washable pre-filter, a pleated filter, and a high-performance deodorizing filter. This ensures cleaner indoor air by effectively reducing allergens, dust, and odors, contributing to a healthier living space.

The sleek and modern design of these units also allows for easy installation and compatibility with various interior settings. The MUY-GE09NA, MUY-GE12NA, and MUY-GE18NA indoor units are designed to be compact and unobtrusive, while the outdoor units (MUZ series) are engineered for durability and quiet operation.

Noise levels are another critical aspect where Mitsubishi excels. These air conditioning systems operate quietly, making them suitable for bedrooms, offices, and other noise-sensitive environments. Their Whisper-Quiet technology ensures that sound levels during operation remain low, promoting a peaceful atmosphere.

Mitsubishi Electronics ensures customer satisfaction with robust support and warranty options, emphasizing quality and reliability. In summary, the MUY-GE12NA, MUY-GE18NA, MUY-GE09NA, MUZ-GE12NA, and MUZ-GE18NA models stand out for their energy-efficient inverter technology, user-friendly controls, advanced air filtration, sleek design, and quiet operation, making them a smart choice for modern cooling and heating needs.