Mitsubishi Electronics MSZ-GA25VA, MSZ-GA22VA Check of remote controller and receiver P.C. board

Page 18

Indoor unit operates by pressing EMERGENCY OPERATION switch, but does not operate with the remote controller.

B Check of remote controller and receiver P.C. board

wCheck if the remote controller is exclusive for this air conditioner.

Switch on the remote controller.

Is LCD display on the the remote	No
Is LCD display on the the remote
controller visible?

(not clear)

Yes

Replace the batteries. (Refer to 9-1.4.)

Remove the batteries, then set them back and press RESET button. (Refer to 9-1.4.) Check if the unit operates with the remote controller.

Does the unit operate with the	No
Does the unit operate with the
remote controller?
Yes
OK

Turn on a radio to AM and press switch on the remote controller.


Is noise heard from radio?		No
Is noise heard from radio?
	Yes


Are there any fluorescent lights of		Yes
inverter or rapid-start type within
inverter or rapid-start type within
the range of 1m?

Replace the remote controller.

●Reinstall the unit away from lights.

●Attach a filter on receiving part.

Replace the indoor electronic control P.C. board.

Image 18

Contents Contents MSZ-GA22VA MSZ-GA25VA MSZ-GA35VATechnical Changes Generalized stepping motorPart Names and Functions Indoor Unit MSZ-GA22VA E1 MSZ-GA25VA E1 MSZ-GA35VA E1MSZ-GA22VA E1 Accessories Indoor UnitMSZ-GA22VA E1 MSZ-GA25VA E1 MSZ-GA35VA E1 MSZ-GA25VA E1When outdoor unit is MXZ type SpecificationSpecifications and rating conditions of main electric parts MSZ-GA22VA E1 MSZ-GA25VA E1 MSZ-GA35VA E1Noise Criteria Curves MSZ-GA22VA E1 MSZ-GA35VA E1 MSZ-GA25VA E1Unit mm Outlines and DimensionsMSZ-GA22VA E1 MSZ-GA25VA E1 MSZ-GA35VA E1 Indoor Unit Required space Indoor unitWiring Diagram Refrigerant System DiagramUnit mm Remote controller model KM05B Service FunctionsHow to modify the remote controller P.C. board J1 J2Lead wiring Housing point TroubleshootingBefore troubleshooting, check the following OperationInformation for Multi System AIR Conditioner Failure mode recall function OFFIndoor unit failure mode table Instruction of troubleshooting Start Indoor unit operates. Outdoor unit doesnt operateTroubleshooting check table Indicates abnormalitiesTrouble criterion of main parts MXZ type Right lamp flashTroubleshooting flow Check of indoor fan motorCheck of remote controller and receiver P.C. board Indoor electronic control P.C.Board How to check mis-wiring and serial signal error LEDCheck of installation of the horizontal vane Electromagnetic noise enters into TV sets or radios YesMSZ-GA22VA E1 MSZ-GA25VA E1 Test point diagram and voltagePower monitor receiver P.C. board Indoor electronic control P.C. boardDisassembly Instructions Removing the panel PhotoOperating Procedure Photos Removing the electrical boxFan Removing the horizontal vane motor unit PhotoRemoving the indoor fan motor and the line flow Photo Motor bandIndoor Unit Structural Parts Controller Parts ListAccessory and Remote Controller Indoor Unit Structural PartsIndoor Unit Electrical Parts and Functional Parts Indoor Unit Heat ExchangerSwitch Holder Nozzle AssemblyInterlock Switchfan Bearing MountMSZ-GA25VA AIR Cleaning Filter ANTI-ALLERGY Enzyme FilterOptional Parts MSZ-GA35VAPage Specifications subject to change without notice

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Manual 16 pages 42.05 Kb

MSZ-GA25VA, MSZ-GA35VA, MSZ-GA22VA specifications

The Mitsubishi Electronics MSZ-GA series encompasses a range of wall-mounted split systems, including the MSZ-GA22VA, MSZ-GA25VA, and MSZ-GA35VA models, designed to provide efficient heating and cooling solutions for a variety of environments. Renowned for their advanced technology and user-friendly features, these air conditioning units are a perfect match for residential and light commercial spaces.

One of the standout features of the MSZ-GA series is the innovative INVERTER technology. This system intelligently adjusts the compressor speed, ensuring that the units operate at optimal efficiency. By maintaining a consistent temperature without constant on/off cycling, this technology significantly reduces energy consumption, leading to lower electricity bills and a reduced carbon footprint.

Another major aspect of these models is their powerful yet quiet operation. The units are designed with advanced noise-reduction technology, allowing them to function at low sound levels, making them ideal for bedrooms and living rooms where disturbances should be kept to a minimum. With noise levels as low as 19 dB(A), users can enjoy a peaceful indoor environment even while the system is running.

Additionally, the MSZ-GA22VA, MSZ-GA25VA, and MSZ-GA35VA models feature an elegant and compact design, which easily integrates into any interior decor. Their sleek and minimalist aesthetics do not compromise on performance, making them a favorite among homeowners and designers alike.

The series also comes with a user-friendly remote control, enabling easy temperature adjustments and settings from across the room. For added convenience, these models include a programmable timer feature, allowing users to set the system to operate according to their schedules. This flexibility not only enhances comfort but also optimizes energy usage.

Moreover, the MSZ-GA series incorporates a powerful air filtration system that helps improve indoor air quality. Featuring a washable anti-allergy enzyme filter, these units capture dust and allergens, making the air cleaner and healthier for occupants.

With a focus on energy efficiency, quiet operation, and advanced air purification, the Mitsubishi Electronics MSZ-GA22VA, MSZ-GA25VA, and MSZ-GA35VA represent an excellent choice for anyone seeking reliable and effective climate control solutions. Whether heating or cooling, these models ensure maximum comfort while minimizing energy usage and environmental impact.