Friedrich MR24C3G, MW24C3G specifications Error Detection

Models: MR24C3G MW24C3G

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ERROR DETECTION

Error

Display

Error

Operation

Timer LED

 

 

 

LED

 

 

 

 

2 flash

Serial signal (reverse) error, at operation start up

 

 

 

 

 

 

3 flash

Serial signal (reverse) error, during oeration

 

 

 

 

Serial signal error

Off

4 flash

Serial signal (forward) error, at operation start up

 

 

 

 

 

 

5 flash

Serial signal (forward) error, during operation

 

 

 

 

 

 

8 flash

Wired remote controller error

 

 

 

 

Indoor unit thermistor error

2 flash

2 flash

Indoor temperature thermistor open / short

 

 

3 flash

Heat exchanger middle thermistor open / short

 

 

 

 

 

 

 

 

2 flash

Discharge thermistor open / short

 

 

 

 

Outdoor unit thermistor error

3 flash

3 flash

Heat exchanger thermistor open

 

 

 

 

 

 

4 flash

Outdoor temperature thermistor open / short

 

 

 

 

 

 

2 flash

Forced automatic SW welded

 

 

 

 

 

 

3 flash

Main relay welded

 

 

 

 

Indoor unit control error

4 flash

4 flash

Power interruption error

 

 

 

 

 

 

7 flash

VDD permanent stop protection

 

 

 

 

 

 

8 flash

reverse VDD permanent stop protection

 

 

 

 

 

 

2 flash

Current trip error

 

 

 

 

 

5 flash

3 flash

CT abnormal

Outdoor unit control error

 

 

5 flash

Compressor location detection error

 

 

 

 

 

 

 

 

 

6 flash

Outdoor unit fan drive system abnormal

 

 

 

 

Indoor fan motor error

6 flash

2 flash

Abnormal lock

 

 

3 flash

Abnormal rotation

 

 

 

 

 

 

Refrigerant cycle error

7 flash

2 flash

Discharge Temperature abnormal

 

 

3 flash

Cooling high pressure abnormal rise

 

 

 

 

 

 

Optional function error

8 flash

4 flash

PFC circuit error

 

 

 

 

Model information error

0.1 sec on/off

0.1 sec on/off

Model information error

 

 

 

 

2010.11.02

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Page 11
Image 11
Friedrich MR24C3G, MW24C3G specifications Error Detection