Panasonic Over The Range Microwave Oven Nn S255bf Operating Instructions

							9
Function Features
This unique function of your PANASONIC microwave oven allows you to establish the initial non-cooking features of
your oven such as CHILD LOCK, WORD SPEED, LANGUAGE CHOICE (ENGLISH, FRENCH OR SPANISH), plus
many more. See below.
1.
2.
3.
• Press Function.
• Press selection by number pad (see chart below).
• Press selection by number pad (see chart below).
4.If other selections are desired, repeat steps 1-3.
1LANGUAGE CHOICE
The oven has a choice of English, French or Spanish display. The display appears in English 
when you plug-in.
1 ENGLISH➻ Display appears in English.
2 FRANCAIS➻ Display appears in French.
3 ESPANOL➻Display appears in Spanish.
2Lb/KG CHOICE
The oven has both imperial and metric weight measurements. The oven displays the weight 
in imperial when you plug it in.
1 Lb➻ Weight can be set in oz/lb, (Imperial).
2 KG➻ 
Weight can be set in g/kg, (Metric).
3WORD SPEED
The speed of word scrolling on the Display Window can be sped up or slowed down.
1 QUICK➻ Words scroll quickly.
2 MEDIUM➻ Scrolling speed returns to initial setting.
3 SLOW➻ Words scroll slowly.
4MENU ACTION ON/OFF
MENU ACTION SCREEN helps you to program your oven by prompting the next step to be 
taken. When you become familiar with your oven, the prompt can be turned off.
1 ON➻ Prompting Guide will appear.
2 OFF➻ Prompting Guide will not appear.
5CHILD LOCK ON/OFF
The oven has a Child Safety Lock feature which prevents the electronic operation of the oven 
until cancelled. It does not lock the door.
1 ON➻ Child Lock has been set and operation will not be accepted.
2 OFF➻ Child Lock has been cancelled.
6BEEP ON/OFF
If you wish to have the oven operate with no beep, it can be turned off.
1 ON➻ Beep sound will reactivate.
2 OFF➻ Beep sound will not be heard.
7REMINDER BEEP ON/OFF
Areminder beep works to remind you to remove the food from the oven after the completion 
of cooking or timer. It will occur every 15 seconds until the door is opened.
1 ON➻ Reminder beep will work.
2 OFF➻ Reminder beep will not work.
8DAYLIGHT SAVING ON/OFF
1 ON➻ Time of day will advance one hour.
2 OFF➻ Time of day returns to original setting.
9CLOCK ON/OFF
Clock display can be turned off.
1 ON➻ Clock display will appear on the Display Window.
2 OFF➻ Clock display will not appear on the Display Window.
Time of day will be stored in memory while the display is off.
0DEMO MODE ON/OFF
Demo mode is designed for retail store display. In this mode, the oven can be demonstrated 
with no power in the oven.
1 ON➻ The oven is in Demo mode.
2 OFF➻ The oven is not in Demo mode.
* DEFAULT MODE
Pressto
Pressto
*
*
*
*
*
*
*
*
*
*  
						

							10
Setting the Clock
Example: To set 11:25
1.• Press Clockonce.
➤Colon flashes.
2.• Enter time of day using the number
pads.
➤Time appears in the display window;
colon continues flashing.
3.•Press Clock.
➤Colon stops flashing; time of day is 
entered. 
NOTES:
1. To reset the clock, repeat step 1-3.
2. The clock will retain the time of day as long as the oven is
plugged in and electricity is supplied.
3. Clock is a 12 hour display.
4. Oven will not operate while colon is flashing.
Selecting Light On/Night/Off
This feature allows you to control the
brightness of Cooktop Light.
Press Light On/Night/Off pad once for
bright light, twice for the night light, and
press again to turn the light off.
NOTE:
When Turntable OFF is selected, it will automatically return
to ON again after the heating cycle is completed.
Do notoperate the oven Turntable Off when cooking foods
on Popcorn / Inverter Turbo Defrost / Auto Reheat / Inverter
Auto Cooking.
Sometimes the turntable can become too hot to touch. Be
careful when touching the turntable during and after cooking.
Selecting Turntable On/Off
For best cooking results, leave the
turntable on. It can be turned off for
large dishes.
Press Turntable On/Off pad to turn the
turntable on or off.
When you turn it off,       will appear in
the display window.
NOTE: Automatic Fan
If the microwave oven is used for a long time or if cooking
equipment under the microwave oven is used simultaneously,
the temperature may get too hot around the microwave oven
and the vent hood fan will automatically turn on at the Turbo
setting to cool the oven. When this occurs the display window
shows VENTILATING, and the fan can not be manually
turned off. If subsequently another key is pressed and HOT
appears in the display window, the microwave oven will not
operate, and you must wait until the microwave is cool and
HOT disappears from the display to re-program. The fan will
automatically turn off when the internal components are cool. It
may continue cooling for 30 minutes or longer.
When COOLING appears in the display window
After either using the microwave oven for a long time or using
the cooking equipment under the microwave, COOLING may
appear in the display window, and the cooling fan will run until
components inside are cool. The microwave oven will continue
to operate normally.
When HOT appears on the Display Window
When using the microwave oven and the cooking equipment
under the product simultaneously, HOT may appear on the
display window and the microwave oven does not work. In this
case, wait until the microwave oven is cool and HOT disap-
pears. It may stay on until it is finished performing the cooking
operation.
Selecting Fan High/Low/Off
The Fan (Vent Fan) reduces steam and
other vapors from the cooking surface
below the microwave oven. Press Fan
High/Low/Off pad once for High fan
speed, twice for Low fan speed, and
press again to turn the fan off. When
you turn it on,      will appear in the
display window.
Selecting Turbo On/Off
Use Turbo On/Off pad for maximum
fan speed.
Press Turbo On/Off pad once to turn
on the Turbo Fan and press again to
turn it off. When you turn it on,      will
appear in the display window.  
						

							11
Press
once
twice
3 times
4 times
5 times
6 times
7 times
8 times
9 times
10 timesPower Level
P10 (HIGH)
P9
P8
P7 (MED-HIGH)
P6 (MEDIUM)
P5
P4
P3 (MED-LOW)/DEFROST
P2
P1 (LOW)This feature allows you to set or add cooking time in 1 minute
increments up to 10 minutes.
To Set Cooking Time:
Selecting Power
& Cook Time
Example: To cook at P 6 (MEDIUM) power for 1 minute 30 seconds  
1.• Press Power Leveluntil the desired
power level appears in the display
window.
2.• Set Cooking Time using number pads.
3.•Press Start.
➤Cooking will start. The time in the 
display window will count down.
NOTES:
1. For more than one stage cooking, repeat steps 1 and 2 for
each stage of cooking before pressing StartPad. The maxi-
mum number of stages for cooking is 5. When operating,
two beeps will sound between each stage. Five beeps will
sound at the end of the entire sequence.
2. When selecting P10 (HIGH) power for the first stage, you
may begin at step 2.
3. When selecting P10 (HIGH) power, the maximum program-
mable time is 30 minutes. For other power levels, the maxi-
mum time is 99 minutes and 99 seconds.
4. For reheating, use P10 (HIGH) for liquids, P7 (MED-HIGH)
for most foods and P6 (MEDIUM) for dense foods.
5. For defrosting, use P3 (MED-LOW).
DO NOT OVERCOOK.This oven requires less time to cook
than an older unit. Overcooking will cause food to dry out and
may cause a fire. A microwave oven’s cooking power tells you
the amount of microwave power available for cooking.
Quick Min Feature
1.• Press Quick Minuntil the desired
cooking time (up to 10 minutes)
appears in the display window. Power
Level is pre-set at P10.
2.• Press Start.
Cooking begins and the time will count
down. At the end of cooking, 5 beeps
sound.
NOTES:
1. If desired, you can use other power levels. Select desired
power level before setting cooking time.
2. After setting the time by Quick MinPad, you cannot use
Number Pads.
3. Quick MinPad can be used to add more time during manual
cooking.
NOTES:
Keep Warmcannot be used in combination with sensor or
auto features.
This feature will keep food warm for up to 30 minutes after
cooking.
Keep Warm Feature
1.• Press Keep Warm.
2.• Set warming time, up to 30 minutes.
3.•Press Start.
➤Keep Warm will start. The time in 
the display window will count down.
Example: To keep 2 cups of gravy warm 
to
Press 5 times.    
						

							12
For Popcorn:
By using the More/LessPad, the programs can be adjusted to
cook popcorn for a longer or shorter time if desired.
1 tap = Adds Approx. 10 secs.
2 taps = Adds Approx. 20 secs.
3 taps = Subtracts Approx. 10 secs.
4 taps = Subtracts Approx. 20 secs.
5 taps = Original setting
Press More/Lesspad before pressing Start.
For Auto Reheat/Inverter Auto Cooking:
Preferences for food doneness vary with each individual. After
having used the Auto Reheat/Inverter Auto Cookingfeature
a few times, you may decide you would prefer your food
cooked to a different doneness. 
1 tap = More (Adds Approx. 10% time)
2 taps = Less (Subtracts Approx. 10% time)
3 taps = Original setting
Press More/Lesspad before pressing Start.
Popcorn Feature
Example: To pop 3.5 oz. of popcorn
1.• Press Popcornuntil the desired size
appears in the display window.
2.• (see More/LessFeature.)
3.•Press Start.
➤After several seconds, cooking 
time appears in the display window 
and begins to count down.
NOTES ON POPCORN FEATURE:
1. Pop one bag at a time.
2. Place bag in oven according to manufacturer’s directions.
3. Start with popcorn at room temperature.
4. Allow popped corn to sit unopened for a few minutes.
5. Open bag carefully to prevent burns, because steam will
escape.
6. Do not reheat unpopped kernels or reuse bag.
NOTE:
If popcorn is of a different weight than listed, follow instructions
on popcorn package. Never leave the oven unattended.If
popping slows to 2 to 3 seconds between pops, stop oven.
Overcooking can cause fire.
REMARKS:
When popping multiple bags one right after the other, the
cooking times may vary slightly. This does not affect the pop-
corn results.
More/Less Feature
Optional
Press
once
twice
3 timesWeight
3.5 oz (99 g)
3.0 oz (85 g)
1.75 oz (50 g)   
						

							13
Conversion Chart:
Follow the chart to convert ounces or hundredths of a pound
into tenths of a pound. To use Inverter Turbo Defrost, enter the
weight of the food in lbs. (1.0) and tenths of a lb. (0.1). If a
piece of meat weighs 1.95 lbs. or 1 lb. 14 oz., enter 1.9 lbs.
Inverter Turbo Defrost Feature
1.• Press Inverter Turbo Defrost.
2.• Enter weight of the food using the
number pads.
3.• Press Start.
Defrosting will start. The time will
count down. Larger weight foods will
cause a signal midway through
defrosting. If 2 beeps sound, turn
over, rearrange foods or shield with
aluminum foil. This feature allows you to automatically defrost foods such as: meat, poultry and seafood simply by entering the weight.
Defrosting Tips & Techniques
Preparation For Freezing:
1. Freeze meats, poultry, and fish in packages with only 1 or 2 layers of food. Place wax paper between layers.
2. Package in heavy-duty plastic wraps, bags (labeled “For Freezer”), or freezer paper.
3. Remove as much air as possible.
4. Seal securely, date, and label.
To Defrost:
1. Remove wrapper. This helps moisture to evaporate. Juices from food can get hot and cook the food. 
2. Set food in a microwave safe dish. 
3. Place roasts fat-side down. Place whole poultry breast-side down.
4. Select power and minimum time so that items will be under-defrosted.
5. Drain liquids during defrosting.
6. Turn over (invert) items during defrosting.
7. Shield edges and ends if needed. (See Cooking Techniques).
After Defrosting:
1. Large items may be icy in the center. Defrosting will complete during STANDING TIME.
2. Let stand, covered, following stand time directions on page 14.
3. Rinse foods indicated in the chart.
4. Items which have been layered should be rinsed separately or have a longer stand time.
Example: To defrost 1.5 pounds of meat  
Ounces
0
1 - 2
3 - 4
5
6 - 7
8
9 - 10
11  - 12
13
14 - 15Hundredths of a Pound
.01 - .05
.06 - .15
.16 - .25
.26 - .35
.36 - .45
.46 - .55
.56 - .65
.66 - .75
.76 - .85
.86 - .95Tenths of a Pound
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Place food on microwave safe dish.   
						

							14
Defrosting Tips & Techniques         (continued)
DEFROST AFTER DEFROSTING
FOOD TIME at P3 DURING DEFROSTING
mins (per lb) Stand Time Rinse
Fish and Seafood
[up to 3 lbs. (1.4 kg)]
Crabmeat 6 Break apart/Rearrange
Fish Steaks 4 to 6 Turn over 5 min. YES
Fish Fillets 4 to 6 Turn over/Rearrange/Shield ends
Sea Scallops 4 to 6 Break apart/Remove defrosted pieces
Whole fish 4 to 6 Turn over
Meat4 to 5 Turn over/Remove defrosted portion/Shield edges
10 min.
Ground Meat
Roasts 4 to 8 Turn over/Shield ends and defrosted surface
30 min. in refrig.
[2
1/2-4 lbs. (1.1-1.8 kg)]
Chops/Steak 6 to 8 Turn over/Rearrange/Shield ends and
defrosted surface
Ribs/T-bone 6 to 8 Turn over/Rearrange/Shield ends and
defrosted surface5 min. NO
Stew Meat 4 to 8 Break apart/Rearrange/Remove defrosted pieces
Liver (thinly sliced) 4 to 6 Drain liquid/Turn over/Separate pieces
Bacon (sliced) 4 Turn over - - - -
Poultry
Chicken, Whole 4 to 6 Turn over/Shield 20 min. in refrig.
[up to 3 lbs. (1.4 kg)]
Cutlets 4 to 6 Break apart/Turn over/Remove defrosted Pieces 5 min. 
YES
Pieces 4 to 6 Break apart/Turn over/Shield
Cornish Hens 6 to 8 Turn over/Shield10 min.
Turkey Breast 6 Turn over/Shield
20 min. in refrig.
[5-6 lbs. (2.3-2.7 kg)]  
						

							15
Auto Reheat Feature
Example: To reheat 2 servings of casserole
1.• Press Auto Reheat until the desired
number of servings appears in the dis-
play window.
2.• (see More/LessFeature)
(☛ page 12)
3.•Press Start.
➤Cooking begins and the time will 
count down.
NOTES:For best results, follow these recommendations:
1. All foods must be previously cooked.
2. Foods should always be covered loosely with plastic wrap,
wax paper or casserole lid.
3. All foods should have a covered stand time of 3 to 5 minutes.
4. DO NOT reheat bread and pastry products using Auto
Reheat. Use manual power and time instead.
5. DO NOT reheat beverages.
6. Times are based on an approximate serving size of 4 oz.
7. A plate of food is normally 3-4 servings. This feature allows you to reheat 1 to 4 servings of precooked
refrigerator temperature foods without setting power and time.
Inverter Auto
Cooking Feature
These are tested and pre-timed (based on the power rating of
this oven) for the quantity of food listed in the chart on page
16. Locale, power fluctuations and personal tastes are not
taken into account. Should you prefer your food cooked differ-
ently, use power and time method shown on page 11.
Example: To cook a 10 oz. Frozen Entrées
Optional Press twice
Press Auto Reheat pad
to indicate number or
servings
once
twice
3 times
4 timesAverage
Serving Size
4-6 oz.
8 oz.
12 oz.
16 oz.Time
will vary depending
on size and wattage
of oven
1.• Press Lunch/Snack.
2.• Press Serving/Weight until the
desired serving/weight appears in the
display window.
3.• (see More/LessFeature)
(☛ page 12)
4.•Press Start.
➤Cooking begins and the time will 
count down.
Press 3 times
Press twice
Optional   
						

							16
Inverter Auto Cooking Chart
Pad Recipe Serving/Weight Hints
Breakfast 1. Oatmeal0.5, 1 cup Place inside a microwave safe serving bowl with no cover. Follow
(40, 80 g) manufacturer’s directions for preparation.
2. Beverages1, 2 cups This feature allows you to reheat 1 cup (250 ml) or 2 cups (500 ml) 
(250, 500 ml) of room temperature beverages without setting power and time.
NOTE:
1. Use a microwave safe cup.
2. Heated liquids can erupt if not mixed with air. Do not heat liquids 
in your microwave oven without stirring before and halfway 
through heating.
3. Care must be exercised not to overheat liquids when using the 
Beverage feature. It is programmed to give proper result when 
heating 1 cup (250 ml) or 2 cups (500 ml) of liquid, starting from 
room temperature. Overheating will cause an increased risk of 
scalding, or water eruption. Refer to page 1, item 18.
3. Bacon4 slices (3.2-4 oz) Place slices of bacon on top of paper-towel-lined microwave safe 
(slice)(90-110 g) dish. Cover with paper towel. Time may vary by brand and weight. 
6 slices (4.8-5.8 oz) If bacon is not cooked to your liking, continue to heat by manually 
(135-165 g) adding more time.
10 slices (8.1-9.5 oz)
(230-270 g)
14 slices (11.6-13 oz)
(330-370 g)
Lunch/Snack 4. Soup1, 2 cups Pour soup into a microwave safe serving bowl. Cover with lid or 
(250, 500 ml) vented plastic wrap. Stir after cooking.
5. Hot Dog1, 2, 3, 4 pieces Make 3 slits on each Hot Dog. Place Hot Dog on paper plate or 
microwave safe dish leaving space between each. Times may vary 
by size and manufacturer.
6. Frozen Entrées8, 10, 20, 32 oz. Follow manufacturers directions for preparation. After 2 beeps,    
(225, 300, 600, 900 g)stir or rearrange. Be careful when removing the film cover after 
cooking. Remove facing away from you to avoid steam burns. 
If additional time is needed, continue to cook manually.
7. Frozen Pizza8 oz. Follow manufacturer’s directions for preparation.
(single)(225 g)
8. Frozen Pocket1 sandwich Follow manufacturers directions for preparation. 
Sandwich(4.5 oz.)
(128 g)
Side Dish 9. Potatoes1, 2, 3, 4 pieces Pierce each potato with a fork 6 times spacing around surface.   
(6 to 8 oz. each) Place potato or potatoes around the edge of paper-towel-lined  
(170 - 225 g) glass tray (Turntable), at least 1 inch (2.5 cm) apart. Do not cover. 
Let stand 5 minutes to complete cooking.
10. Fresh Vegetables4, 8, 12, 16 oz. All pieces should be the same size. Wash thoroughly, add 1 tbsp of  
(110, 225, 340, 450 g)water per 1/2cup of vegetables, and cover with lid or vented plastic 
wrap. Do not salt/butter until after cooking.
11. Frozen Vegetables6, 10, 16 oz. Wash thoroughly, add 1 tbsp of water per 
1/2cup of vegetables, 
(170, 300, 450 g) and cover with lid or vented plastic wrap. Do not salt/butter until 
after cooking. (Not suitable for vegetables in butter or sauce.)
After 2 beeps, stir or rearrange.
12. Rice0.5, 1, 1.5 cups Place rice with hot tap water in a microwave safe casserole dish. 
(110, 220, 335 g) Cover loosely with lid or vented plastic wrap. Let stand 5 to 10 
minutes before serving.
Dinner 13. Frozen Dinners11, 16 oz.  Follow manufacturer’s directions for covering or removing covers.
(300, 450 g) Do not use frozen foods packaged in foil trays.
14. Pasta2, 4, 6, 8 oz. Place pasta with hot tap water in a microwave safe casserole dish.
(56, 110, 170, 225 g)Cover with lid or vented plastic wrap.
15. Fish Fillets4, 8, 12, 16 oz. Arrange in a single layer.
(110, 225, 340, 450 g)Cover with lid or vented plastic wrap.  
						

							17
Timer Feature
Example: To count down 5 minutes.
1.• Press Timer.
2.• Set desired amount of time using
number pads.
(up to 99 minutes and 99 seconds).
3.•Press Start.
➤Time will count down without oven 
operating.
NOTE:
1. When each stage finishes, a two-beep signal sounds. At the
end of the program, the oven will beep five times.
2. If the oven door is opened during Stand Time, Kitchen Timer
or Delay Time, the time on the display will continue to count
down.
3. Stand time and Delay start cannot be programmed before
any automatic Function. This is to prevent the starting tem-
perature of food from rising before defrosting or cooking
begins. A change in starting temperature could cause inac-
curate results. This feature allows you to program the oven as a kitchen timer.
It can also be used to program a standing time after cooking is
completed and/or to program a delay start.
To Use as a Kitchen Timer:
CAUTION:
If oven lamp is lit while using the timer feature, the oven is
incorrectly programmed. Stop oven immediately and 
re-read instructions.
To Set Delay Start:
Example: To cook at P6 power for 3 minutes, with stand 
time of 5 minutes.
1.• Enter the desired Power Level(see
page 11 for directions).
2.• Set desired cooking time using num-
ber pads.
3.• Press Timer.
4.• Set desired amount of Stand Time
using number pads. (up to 99 minutes
and 99 seconds)
5.•Press Start.
➤Cooking will start. After cooking, 
stand time will count down without 
oven operating.
To Set Stand Time:
Example: To delay the start of cooking for 5 minutes, and 
cook at P6 power for 3 minutes.
1.• Press Timer.
2.• Enter desired amount of delay time
using number pads. (up to 99 minutes
and 99 seconds)
3.• Enter the desired Power Level(see
page 11 for directions).
4.•Set desired cooking time using num-
ber pads.
5.•Press Start.
➤Delay time will count down. Then 
cooking will start.
Press 5 times
Press 5 times  
						

							18
Microwave Shortcuts
FOOD POWERTIME
DIRECTIONS
(in mins.)
To separate refrigerated P10 (HIGH) 30 sec.  Remove wrapper and place in microwave safe dish. After
Bacon,heating, use a plastic spatula to separate slices.
1 pound (450 g)
To soften Brown SugarP10 (HIGH) 20 - 30 sec. Place brown sugar in microwave safe dish with a slice of
1 cup (250 ml) bread. Cover with lid or plastic wrap. 
To soften refrigerated Butter,  P3 (MED-LOW) 1 Remove wrapper and place butter in a microwave safe  
1 stick, 
1/4pound (110 g) dish.
To  m elt refrigerated Butter, P6 (MEDIUM) 1
1/2- 2 Remove wrapper and place butter in a microwave safe 
1 stick, 1/4pound (110 g) dish covered with lid or vented plastic wrap. 
To melt Chocolate,P6 (MEDIUM) 1 - 1
1/2Remove wrapper and place chocolate in a microwave
1 square, 1 oz. (28 g) safe dish. After heating, stir until completely melted.
To melt Chocolate,P6 (MEDIUM) 1 - 1
1/2Note: Chocolate holds its shape even when softened.1/2cup  (125 ml) chips
To toast Coconut,  P10 (HIGH) 1 Place in a microwave safe dish.
1/2cup (125 ml) Stir every 30 seconds. 
To soften Cream Cheese,P3 (MED-LOW) 1 - 2 Remove wrapper and place in a microwave safe bowl. 
8 oz. (225 g)
To brown Ground Beef,  P10 (HIGH) 4 - 5 Crumble into a microwave safe colander set into another
1 pound (450 g) dish. Cover with plastic wrap. Stir twice. Drain grease.
To cook Vegetables,
Fresh P8 3
1/2- 4 All pieces should be the same size. Wash thoroughly, 
(1/2lb) add 1 tbsp of water per 1/2cup of vegetables, and cover 
(225 g) with lid or vented plastic wrap. Do not salt/butter until after
cooking.
Frozen P8 3
1/2- 4 Wash thoroughly, add 1 tbsp of water per 1/2cup of
(10 oz) vegetables, and cover with lid or vented plastic wrap. 
(285 g) Do not salt/butter until after cooking.
(Not suitable for vegetables in butter or sauce.)
Canned P8 3
1/2- 4 Empty contents into microwave safe serving bowl.
(15 oz) Do not cover.
(430 g)