Friedrich MR09Y3H, MR12Y3H manual Error Detection

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ERROR DETECTION

Error

Indoor unit LED

 

Wired

 

 

 

 

remote

Error

Operation

Timer LED

Coil dry

 

control

 

 

LED

 

LED

 

 

 

 

2 flash

off

01

Serial signal (reverse) error, at operation start up

 

 

 

 

 

 

 

 

3 flash

off

01

Serial signal (reverse) error, during oeration

 

 

 

 

 

 

Serial signal error

Off

4 flash

off

13

Serial signal (forward) error, at operation start up

 

 

 

 

 

 

 

 

5 flash

off

13

Serial signal (forward) error, during operation

 

 

 

 

 

 

 

 

8 flash

off

00

Wired remote control error

 

 

 

 

 

 

Indoor unit

 

2 flash

off

02

Indoor air thermistor error

2 flash

 

 

 

 

thermistor error

3 flash

off

04

Heat exchanger middle thermistor error

 

 

 

 

 

 

 

 

 

 

 

2 flash

off

0C

Discharge pipe thermistor error

Outdoor unit

 

 

 

 

 

3 flash

3 flash

off

06

Heat exchanger thermistor error

thermistor error

 

 

 

 

 

 

4 flash

off

0A

Outdoor air thermistor error

 

 

 

 

 

 

 

 

Indoor unit control error

4 flash

2 flash

off

20

Manual auto button welded

 

 

 

 

 

 

 

 

2 flash

off

17

Current trip error

 

 

 

 

 

 

Outdoor unit

 

3 flash

off

18

CT abnormal

5 flash

 

 

 

 

control error

5 flash

off

1A

Compressor location detection error

 

 

 

 

 

 

 

 

 

 

 

6 flash

off

1B

Outdoor unit fan drive system abnormal

 

 

 

 

 

 

 

 

2 flash

off

12

Abnormal lock (upper fan motor)

Indoor fan motor error

6 flash

 

 

 

 

3 flash

off

12

Abnormal rotation (upper fan motor)

 

 

 

 

 

 

 

 

 

 

2 flash

off

0F

Discharge temperature abnormal

Refrigerant cycle error

7 flash

 

 

 

 

3 flash

off

24

Cooling high pressure abnormal rise

 

 

 

 

 

 

 

 

 

 

2 flash

off

19

Active filter abnormal (first time)

Optional function error

8 flash

 

 

 

 

3 flash

off

19

Active filter abnormal (second time)

 

 

 

 

 

 

 

 

4 flash

off

25

PFC circuit error

 

 

 

 

 

 

Model information error

0.1 sec on/off

0.1 sec on/off

0.1 sec on/off

11

Model information error

 

 

 

 

 

 

11

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Contents Service and Parts Manual ModelsCustomer Satisfaction and Quality Assurance Friedrich Authorized Parts DepotsSpecifications Dimensions Unit inch mmIndoor Unit 31-3/32 25/32Refrigerant System Diagram Circuit Diagram Indoor PCB Circuit Diagram Control Unit MW09Y3H EZ-00906HSE MW12Y3H EZ-00907HSEFH1 FH2 Indoor Unit Indicator PCB Assembly K07BJ-0700HSD-D0Outdoor PCB Circuit Diagram Controller PSB Assembly Error Detection ErrorParts Front panel assyEvaporator Casing assy Control box MR09Y3H MR12Y3HDescription Part number Base Assy Outdoor Unit MR12Y3H Outdoor Unit MR09Y3H MR12Y3H Accessories Wall hook bracket Remote control Remote control holderPage Friedrich AIR Conditioning CO

MR12Y3H, MR09Y3H specifications

Friedrich MR09Y3H and MR12Y3H are two highly efficient ductless mini-split air conditioning systems that cater to residential and commercial spaces with specific needs for temperature control. Both models are characterized by their advanced features, energy efficiency, and user-friendly technologies.

The MR09Y3H provides a cooling capacity of 9,000 BTUs, while the MR12Y3H boasts a slightly more powerful 12,000 BTUs. This variation allows users to choose the appropriate model based on the size and layout of their space, ensuring optimal cooling and heating performance. Both units excel in energy efficiency, boasting SEER ratings that often exceed 20. This not only translates to lower electricity bills but also reflects their compliance with environmental standards.

One of the standout features of both models is their inverter technology, which allows for variable compressor speed operation. This technology enables the units to adapt to the cooling or heating demands of the space, resulting in enhanced comfort and reduced energy consumption. The inverter compressor operates silently, making both models ideal for bedrooms, offices, and other noise-sensitive environments.

Another remarkable characteristic of the Friedrich MR series is their advanced air filtration system, which includes a multi-layer filter designed to capture dust, pollen, and other airborne particles. This ensures cleaner and healthier air quality, benefiting individuals with allergies or respiratory conditions.

Both the MR09Y3H and MR12Y3H come equipped with user-friendly remote controls, allowing for easy adjustment of temperature settings, fan speeds, and modes. The units also feature a programmable timer and sleep mode, enabling users to customize their air conditioning schedules for maximum comfort and efficiency.

Installation is made simple with the inclusion of easy-to-follow instructions and a compact design that allows for flexibility in placement. The outdoor unit is designed for durability, ensuring reliable performance even in harsh weather conditions.

In summary, the Friedrich MR09Y3H and MR12Y3H offer a combination of energy efficiency, advanced technology, and superior air quality control, making them excellent choices for those seeking reliable and effective cooling and heating solutions. Whether for a small office, a large living room, or an entire apartment, these models are designed to deliver high-performance climate control while meeting the demands of modern users.