Samsung SMH7178STE User Manual (English)

Other manuals for Samsung SMH7178STE

Questions and Answers:

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Lisa CainAug 21, 2025
Why my Samsung SMH7178STE Microwave Oven is not working?
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  Julie JimenezAug 21, 2025
  If neither the display nor the oven of your Samsung Microwave Oven are working, ensure the plug is properly inserted into a grounded outlet. If the outlet is switch-controlled, verify the switch is on. Try removing the plug, waiting ten seconds, and plugging it back in. Also, check the circuit breaker or replace any blown fuse. Test the outlet with another appliance; if it doesn't work, have an electrician repair the outlet. As an alternative, try plugging the oven into a different outlet.
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Carolyn MarshallAug 23, 2025
What to do if my Samsung SMH7178STE Microwave Oven isn't accepting key inputs?
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  jennifer88Aug 23, 2025
  If your Samsung Microwave Oven isn't accepting key inputs, it could be due to the key input not being in sequence, an open or loose connection of the membrane key pad to the Ass’y PCB, a shorted or open membrane panel, or a defective Ass’y PCB. Refer to the operation procedure. Replacing the PCB main might solve the problem.
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Carl MontgomeryAug 25, 2025
What to do if my Samsung SMH7178STE Microwave Oven has no display and no operation at all?
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  spearsronaldAug 25, 2025
  If your Samsung Microwave Oven is completely dead with no display or operation, and the fuse is OK, the problem might be an open or loose lead wire harness, an open thermal cutout (Magnetron), an open low voltage transformer, or a defective Ass’y PCB. Check the fan motor when thermal cutout is defective. Check Ass’y PCB when LVT is defective.
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burnsjenniferAug 27, 2025
What to do if my Samsung SMH7178STE Microwave Oven display works but the power won’t come on?
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  Ian MartinAug 27, 2025
  First, make sure the door is securely closed. Then, check for any packing material or obstructions stuck to the door seal and inspect the door for any damage. If everything appears normal, press Cancel twice and re-enter all cooking instructions.
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Cynthia McclureAug 27, 2025
What to do if my Samsung SMH7178STE stops before the set time?
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  Daniel MooreAug 28, 2025
  If your Samsung Microwave Oven powers off prematurely, and there hasn't been a power outage, unplug it, wait ten seconds, and then plug it back in. If a power outage occurred, the display will show “ ENJOY YOUR COOKING - - PRESS MY CHOICE FOR PERSONAL OPTIONS”. In this case, reset the clock and any cooking instructions.
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Justin MartinezAug 29, 2025
What to do if my Samsung SMH7178STE Microwave Oven stops operation during cooking?
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  tina05Aug 29, 2025
  If your Samsung Microwave Oven stops operating during cooking, it could be due to an open or loose wiring of the primary interlock switch or the operation of thermal cutout (Magnetron). Try adjusting the door and latch switches.
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James HillAug 30, 2025
What to do if Samsung Microwave Oven can program but timer does not start?
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  Justin GeorgeAug 30, 2025
  If your Samsung Microwave Oven can be programmed, but the timer doesn't start, it could be due to open or loose wiring of the secondary interlock switch, off-alignment of the primary interlock, or a defective secondary interlock S/W. Adjust the door and interlock switches.
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danielwilliamsSep 1, 2025
Why Samsung SMH7178STE Microwave Oven turntable motor does not rotate?
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  James TaylorSep 1, 2025
  If the turntable motor in your Samsung Microwave Oven isn't rotating, it could be due to open or loose wiring of the turntable motor or a defective turntable motor. Replace the turntable motor.
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Carrie OrtegaSep 3, 2025
How to fix Samsung Microwave Oven turntable that makes noise?
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  Charles SimpsonSep 3, 2025
  If the turntable in your Samsung Microwave Oven is noisy or sticking, start by cleaning the turntable, roller ring, and the oven floor. Also, verify that the turntable and roller ring are correctly positioned.
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Andrew WrightSep 4, 2025
What to do if my Samsung SMH7178STE Microwave Oven timer starts countdown but no microwave oscillation?
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  Donna BrownSep 4, 2025
  If the timer on your Samsung Microwave Oven is running, but there's no heat, and the oven lamp and fan are on, the issue might be due to off-alignment of latch switches, a loose connection in the high voltage circuit (especially the magnetron filament circuit), defective high voltage components (H.V.Transformer, H.V. Capacitor, H.V.Diode, H.V.Fuse, Magnetron), open or loose wiring of the power relay, a defective primary latch switch, or a defective power relay or Ass’y PCB. Try adjusting the door and latch switches. Also, check the high voltage components and replace them if defective. Replacing the PCB main may also resolve the issue.

Samsung SMH7178STE Specifications

General

Capacity	1.7 cu. ft.
Power	1000 Watts
Turntable	Yes
Sensor Cook	Yes
Cooking Presets	Yes
Color	Stainless Steel
Convection Cooking	No
Grill Function	No
Child Lock	Yes
Auto Defrost	Yes
Keep Warm Function	Yes
Type	Over-the-Range
Control Type	Touch
Turntable Diameter	12.5 inches