Frigidaire FFBN1721TV Wiring Diagram - Page 2

Fault Codes and Solutions - refrigerator

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•Mode Setting •Pressing the Mode button cycles through the modes in the following manner: Quick Chill → Quick Freeze → Quick Chill & Freeze → Holiday → None → Quick Chill, etc. •Quick Chill sets the Fresh Food compartment temperature to 35°F. Exiting Quick Chill resets the Fresh Food compartment to the set temperature before Quick Chill began. •Quick Freeze sets the Freezer compartment to -11°F. Exiting Quick Freeze resets the Freezer compartment to the set temperature before Quick Freeze began. •Holiday Mode locks the Fresh Food compartment temperature and sets the Freezer temperature at 0°F. •Fault Codes and Solutions Fault Code Fault Content Code Visible 1. E1 NTC fault in FF chamber Yes 2. 3. 4. 1. E2 NTC fault in Freezer Defrost Sensor fault in E4 FF chamber Defrost Sensor fault in E5 Freezer Yes 2. 3. 4. 1. Yes 2. 3. 4. 1. Yes 2. 3. 4. 1. E6 Communication fault Ambient temp. sensor E7 fault Yes 2. 3. 4. 1. Yes 2. 3. 4. 1. EH Humidity sensor fault Yes 2. 3. 4. Only reported EC EEPROM fault under self- diagnosis Corrective Actions Check if terminal CN1 is stuck or has debris. If so, remove, clear debris and reinsert Remove sensor and check against resistance table Replace main control board Replace main Wiring harness Check if terminal CN1 is stuck or has debris. If so, remove, clear debris and reinsert Remove sensor and check against resistance table Replace main control board Replace main Wiring harness Check if terminal CN3 is stuck or has debris. If so, remove, clear debris and reinsert Remove sensor and check against resistance table Replace main control board Replace main Wiring harness Check if terminal CN1 is stuck or has debris. If so, remove, clear debris and re-insert Remove sensor and check against resistance table Replace main control board Replace main Wiring harness Check if terminal CN8 is stuck or has debris. If so, remove, clear debris and re-insert Replace main control board Replace UI board Check whether signal cables of UI board are connected Check if terminal CN2 is stuck or has debris. If so, remove, clear debris and re-insert Check whether sensor is connected Replace main control board Remove and replace temperature and humidity sensors Check if terminal CN2 is stuck or has debris. If so, remove, clear debris and re-insert Check whether sensor is connected Replace main control board Remove and replace temperature and humidity sensors Replace Main Control Board •Test Modes 3.1 Operating Mode •How to access: Hold down Lock and Freezer Temp buttons for 3 seconds to enter Operating Mode. Once entered, press the Freezer Temp button to change mode selection UI Display 0 Mode Exit 1 Forced Start Mode 3 Force defrost for FF and Freezer •How to exit: Press the Freezer Temp. button until the UI displays the freezer temperature, the hold down the Lock button for 3 seconds until the Freezer temperature is locked. Hold down the Freezer temp. and Lock buttons for 3 seconds 3.2 Forced Start Mode •The compressor runs for 36h (time-lapse is 10 min.) •In operating mode, when 1 is selected, the refrigerant exchange valve switches to the FF compartment only. Fresh Food and freezer compartment fans run at high speed. •After force starting for 36 hours, the system automatically exits forced start mode and return to previously set temperatures. 3.3 Forced Defrost •Fresh Food and freezer compartments defrost simultaneously. Forced defrost temperature in the freezer is 17.6°F, while the Fresh Food is normal defrost temperature. After forced defrost, normal operation will resume. •Note: the defrost heaters will be open for at least 2 minutes. •Resistance Table Tx(℃) R(KΩ) Tx(℃) R(KΩ) Tx(℃) R(KΩ) Tx(℃) R(KΩ) Tx(℃) R(KΩ) -30 33.81 -15 14.31 -29 31.85 -14 13.55 -28 30.01 -13 12.83 -27 28.29 -12 12.16 -26 26.68 -11 11.52 -25 25.17 -10 10.92 -24 23.76 -9 10.35 -23 22.43 -8 9.82 -22 21.18 -7 9.316 -21 20.01 -6 8.841 -20 18.9 -5 8.392 -19 17.87 -4 7.968 -18 16.9 -3 7.568 -17 15.98 -2 7.19 -16 15.12 -1 6.833 0 6.495 15 3.141 30 1.617 1 6.175 16 2.999 31 1.55 2 5.873 17 2.865 32 1.486 3 5.587 18 2.737 33 1.426 4 5.315 19 2.616 34 1.368 5 5.06 20 2.501 35 1.312 6 4.818 21 2.391 36 1.259 7 4.589 22 2.287 37 1.209 8 4.372 23 2.188 38 1.161 9 4.167 24 2.094 39 1.115 10 3.972 25 2.005 40 1.071 11 3.788 26 1.919 41 1.029 12 3.613 27 1.838 42 0.9885 13 3.447 28 1.761 43 0.9506 14 3.29 29 1.687 44 0.914

  • 1
  • 2
Fault Code
Fault Content
Code Visible
E1
Corrective Actions
Yes
1.
NTC fault in FF chamber
2.
E2
Yes
NTC fault in Freezer
3.
Replace main control board
4.
Replace main Wiring harness
Check if terminal CN1 is stuck or has
debris.
If so, remove, clear debris and re-
insert
Remove sensor and check against
resistance table
E4
Yes
1.
FF chamber
Defrost Sensor fault in
2.
1.
Check if terminal CN1 is stuck or has
debris.
If so, remove, clear debris and re-
insert
2.
Remove sensor and check against
resistance table
3.
Replace main control board
4.
Replace main Wiring harness
E5
3.
Replace main control board
4.
Replace main Wiring harness
Yes
1.
Check if terminal CN3 is stuck or has
debris.
If so, remove, clear debris and re-
insert
Remove sensor and check against
resistance table
Defrost Sensor fault in
Freezer
2.
E6
Yes
Communication fault
3.
Replace main control board
4.
Replace main Wiring harness
Check if terminal CN1 is stuck or has
debris. If so, remove, clear debris and
re-insert
Remove sensor and check against
resistance table
E7
are connected
Yes
Ambient temp. sensor
fault
1.
Check if terminal CN8 is stuck or has
debris. If so, remove, clear debris and
re-insert
2.
Replace main control board
3.
Replace UI board
4.
Check whether signal cables of UI board
EH
Yes
Humidity sensor fault
1.
Check if terminal CN2 is stuck or has
debris. If so, remove, clear debris and
re-insert
2.
Check whether sensor is connected
3.
Replace main control board
4.
Remove and replace temperature and
humidity sensors
EC
EEPROM fault
Only reported
under self-
diagnosis
Replace Main Control Board
1.
Check if terminal CN2 is stuck or has
debris. If so, remove, clear debris and
re-insert
2.
Check whether sensor is connected
3.
Replace main control board
4.
Remove and replace temperature and
humidity sensors
•
Test Modes
3.1 Operating Mode
•How to access: Hold down Lock and Freezer Temp buttons for 3 seconds to enter Operating Mode. Once entered, press the
Freezer Temp button to change mode selection
0
1
3
UI Display
Mode
Exit
Forced Start Mode
Force defrost for FF and Freezer
•
3.2 Forced Start Mode
The compressor runs for 36h (time-lapse is 10 min.)
•How to exit:
Press the Freezer Temp. button until the UI displays the freezer temperature, the hold down the Lock button for 3 seconds
until the Freezer temperature is locked.
Hold down the Freezer temp. and Lock buttons for 3 seconds
•Mode Setting
•Pressing the Mode button cycles through the modes in the following manner:
Quick Chill → Quick Freeze → Quick Chill & Freeze → Holiday → None → Quick Chill, etc.
•Quick Chill sets the Fresh Food compartment temperature to 35
°
F. Exiting Quick Chill resets the Fresh Food compartment to the
set temperature before Quick Chill began.
•Quick Freeze sets the Freezer compartment to -11
°
F. Exiting Quick Freeze resets the Freezer compartment to the set temperature
before Quick Freeze began.
•Holiday Mode locks the Fresh Food compartment temperature and sets the Freezer temperature at 0
°
F.
•
Fault Codes and Solutions
Tx(
℃
)
R(K
Ω
)
Tx(
℃
)
R(K
Ω
)
Tx(
℃
)
R(K
Ω
)
Tx(
℃
)
R(K
Ω
)
Tx(
℃
)
R(K
Ω
)
-30
33.81
-15
0
14.31
15
6.495
30
3.141
1.617
-29
31.85
-14
1
13.55
16
6.175
31
2.999
1.55
-28
30.01
-13
2
12.83
17
5.873
32
2.865
1.486
-27
28.29
-12
3
12.16
18
5.587
33
2.737
1.426
-26
26.68
-11
4
11.52
19
5.315
34
2.616
1.368
-25
25.17
-10
5
10.92
5.06
20
35
2.501
1.312
-24
-9
23.76
6
10.35
21
4.818
36
2.391
1.259
-23
-8
22.43
7
9.82
22
4.589
37
2.287
1.209
-22
-7
21.18
8
9.316
23
4.372
38
2.188
1.161
-21
-6
20.01
9
8.841
24
4.167
39
2.094
1.115
-20
18.9
-5
10
8.392
25
3.972
40
2.005
1.071
-19
-4
17.87
11
7.968
•In operating mode, when 1 is selected, the refrigerant exchange valve switches to the FF compartment only. Fresh Food and freezer
compartment fans run at high speed.
•After force starting for 36 hours, the system automatically exits forced start mode and return to previously set temperatures.
3.3 Forced Defrost
•Fresh Food and freezer compartments defrost simultaneously. Forced defrost temperature in the freezer is 17.6
°
F, while the Fresh
Food is normal defrost temperature.
After forced defrost, normal operation will resume.
•Note: the defrost heaters will be open for at least 2 minutes.
•
Resistance Table
26
3.788
41
1.919
1.029
-18
16.9
-3
12
7.568
27
3.613
42
1.838
-17
0.9885
-2
15.98
7.19
13
28
3.447
43
1.761
-16
0.9506
-1
15.12
14
6.833
29
3.29
44
1.687
0.914