Whirlpool 7S21FNI SL User manual

7S21FNISL/7S21FNNSL
Service Manual
Table of Contents
Appearance and Parts Diagram
Technical Specifications
Control System
Control Panel and Operation
Fault Handling

Section I: Appearance
Section II: Technical Specifications
Model Number
7S21FNISL/7S21FNNSL
Rated Power Input (W)
120
Climate Type
3, SN/N/ST/T
Defrost Wattage (W)
200
Protection against
electric shock
I
Power Consumption (Kwh/24h)
1.19
Frozen stars
Noise Sound Level (dB) (A)
44
Total Volume (L)
576
Foaming Agent
Cyclopentane
Refrigerator Volume (L)
376
Energy efficiency level
Level 1
Freezer Volume (L)
200
Freezing Capacity (Kg/24h)
12
Rated Voltage (V)
220
Refrigerant/Amount
R600/83g
Rated Frequency (Hz)
60
Net Dimensions (h:w:d) in mm
1809 : 774 : 915
Rated Current (A)
1.0
Gross/Net Weight in Kg
125/105

Section III: Control System
Schematic Diagram
1. The Compressor:
Compressor downtime must be greater than 5 minutes to open again. It is parked at an open cycle, once the freezer
reaches the required temperature, only then will the compressor stop again.
2. Condenser Fan Motor:
When the ambient temperature is below 10 ℃, condenser fan is turned on ten minutes after the compressor is turned on.
When the ambient temperature is higher than 10 ℃, condenser fan and compressor are simultaneously turned on.
3. Evaporator Fan Motor:
Evaporator fan is turned on after the freezer door is closed.
4. Freezer & Ref LED Lamps:
The freezer & ref lamps turn off when the freezer door is closed, and turned on when the freezer door is opened.
5. Heater and Air Damper:
During cooling/refrigeration mode, air damper is opened.
During defrost mode, air damper is closed and heater is turned on.
Air Damper only changes its state when freezer door is closed.

6. Freezer & Ref LED Lamps and UV Light:
When doors are open, all lights are turned on.
When doors are closed, LED lamps are turned off immediately. The UV light will run for one more hour before it turns off.
Section IV: Control Panel and Usage
Control Panel and Use of each button
To select an Operating Mode:
In the unlocked state, press the "MODE" button to select either, Quick Freeze, Speed Cooling, Holiday, Intellectual Mode
and other functions, the corresponding Icon flashes for 3 seconds after entering the selected function.
Compartment Temperature Setting:
Press the "Freezer Temperature Adjustment" button to adjust the temperature of the freezer compartment. Freezer
temperature adjustment range: -16 ℃- 22 ℃
Press the "Refrigerator Temperature Adjustment”button to adjust the temperature of the refrigerator compartment.
Freezer temperature adjustment range: 2 ℃-8 ℃
Turn off Refrigerator Compartment:
In an Unlocked State, press and hold “Refrigerator Temperature Adjustment”button for 3 seconds, the “OFF” icon will be
lighted; refrigerator compartment will be turned off.
If unused for a period of time, the refrigerator compartment can be turned off to save energy. During the period when the
refrigerator compartment is turned off, its doors should be closed firmly and it is suggested that no fresh food be stored.
When the “OFF” icon is lighted, press and hold the “Refrigerator Temperature Adjustment”button for 3 seconds; the
“OFF” icon will be extinguished and Refrigerator compartment will back to work.

Quick Freeze Icon:
Under the “Quick Freeze”mode, press and hold the “Freezer Temperature Adjustment”button for 3 seconds to adjust the
“Quick Freeze”mode duration; it can range between 6-24 hours.
Lock/Unlock Button:
If buttons have not been pressed for 30 seconds, it will go into lock state automatically.
Under the unlocked state, press the Lock / Unlock button for 3 seconds; the control panel will be disabled and a lock icon
will be lighted.
Under the locked state, press the Lock / Unlock button for 3 seconds; the control panel will activate and the lock icon will be
extinguished.
V. Fault Handling
1. Fault Codes
Fault Code Display
Fault Code Description
Refrigerator temperature display flashes "E1"
Refrigerator temperature sensor failure
Freezer temperature display flashes "E2"
Freezer temperature sensor failure
Freezer temperature display flashes "E9"
Defrost sensor failure
Freezer temperature display flashes "E6"
Communication Failure
2. Common Faults and Maintenance
Common Faults
Possible Reason
Troubleshooting
Refrigerator is not cooling
Compressor is not working / cannot
start up.
Check if:
-the PTC starter relay is damaged
-the voltage input to the control board
is normal;
Compressor frequent tripping
Check if:
-the overload protection device is
damaged
-the compressor running current is
normal, if the current is too low, check
the refrigerant leaks.
Refrigerator compartment is
Check every connection of PCB, make
sure that there are no loose

not cooling
contacts/connectors.
Make sure that the unit is plugged in to
the power outlet; check if the
evaporator fan.
Make sure that the air damper is able
to close and open properly.
Temperature requirements for
both freezer and refrigerator
compartment are not being
reached
Check for refrigerant leaks
Check for gasket leaks on both freezer
and refrigerator doors
Check if condenser fan is working
properly.
A very loud noise is heard
during operation
The evaporator fan motor is causing
the loud noise.
Remove the evaporator cover and the
freezer fan channel; check if the fan
blades rubbing with other components
or objects; if it is, make sure that the
fan assembly is in its right position and
if the fan blades are not worn out.
The condenser fan motor is causing the
loud noise.
Check the fan motor is right position or
not.
If the motor in right position and a loud
noise is still heard during operation,
change it to a new one.
A loud noise is heard from the
compressor during operation.
Check for worn out shock pad/gasket, if
it is, replace it with a new one.
If a loud noise is still heard, replace
compressor with a new one.
A loud noise is heard from refrigerant
flow.
Need to take out all refrigerants and re-
inject it.
Other noise is heard from compressor
cabinet
Check each pipe and make sure the
pipes do not rub with another.
Door gasket does not stick to
the cabinet
Turn off the unit, use an electric hair
dryer to heat the gasket, in order to
soften it.
If the method above does not work,
change the gasket.
If the two methods above still failed,
remove the door and remove the lower
hinge shims to adjust the door box
spacing.