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Home/Appliance Parts/Micro Switch & Interlock Switch/KW7-0
KW7-0 Micro Switch Compatible with Air Fryer, Microwave Oven, Induction Cooker, Replaces KW7-0A KW7-1 KW7-2
  • KW7 0 01
  • KW7 0 02
  • KW7 0 03
  • KW7 0 04
  • KW7 0 05
  • KW7 0 06
  • KW7 0 07
  • KW7 0 08
  • KW7 0 09
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Showing 32 compatible models
Aftermarket Replacement · Factory Direct
OEM-compatible part built to original specifications. Not manufactured by or affiliated with the original equipment brand.

KW7-0 Micro Switch Compatible with Air Fryer, Microwave Oven, Induction Cooker, Replaces KW7-0A KW7-1 KW7-2

SKU: KW7-0
Order within --:-- to ship today
Repair Time10-20 Minutes
DifficultyEasy
DIY FriendlyYes
Tools Needed
MultimeterPhillips-head screwdriverFlathead screwdriverNeedle-nose pliers
Qty
Ships from China · 10–20 business days
No sales tax outside CA
or
KW7-0 Micro Switch Compatible with Air Fryer, Microwave Oven, Induction Cooker, Replaces KW7-0A KW7-1 KW7-2
In Stock

This Part Fixes These Problems

Appliance Won't Start

Air fryer or microwave oven is completely unresponsive when the power button is pressed or the door is closed – a failed KW7-0 switch breaks the control circuit.

Intermittent Operation

Appliance starts randomly or stops mid-cycle; worn switch contacts cause an unstable connection that cuts power unpredictably.

No Heating / Cooking Stops Early

Unit powers on but heating element never activates, or the cooking cycle halts before completion due to an open-circuit micro switch not signaling the control board.

Missing Tactile Click

The characteristic snap-action click is absent when pressing the door latch or control button, indicating the internal mechanism or contacts have failed.

Repair Guides

Universal Micro Switch Parts — Air Fryer, Microwave & Induction Cooker Compatibility
May 30, 2026
Air Fryer or Microwave Won't Start — 5 Door Switch Causes & How to Fix
May 30, 2026
OEM vs Aftermarket KW7-0 Micro Switch: Which Door Switch Actually Lasts? (Air Fryer & Microwave)
May 27, 2026
How to Replace KW7-0 Micro Switch on Air Fryers and Microwaves — Step-by-Step
May 26, 2026
How to Extend Your Micro Switch Life — KW7-0 Maintenance Guide
May 26, 2026

Product Description

Why Choose Our KW7-0 Micro Switch?

🔧
Built to OEM Specifications SPDT contact configuration rated 16A at 250VAC/125VAC – matches the original KW7-0 spec exactly. Dimensions: 29 mm × 16 mm × 10 mm, weight approx. 8 g.
🔥
Flame-Retardant PBT Housing High-temperature resistant, flame-retardant PBT plastic shell withstands the intense heat inside air fryers and microwave ovens without warping or cracking.
⚡
High-Current Reliability 16A heavy-duty rating handles peak inrush currents in air fryers, induction cookers, and washing machines. Dielectric strength: 1800 V AC between poles; insulation resistance ≥2 MΩ at 500 VDC.
🔄
100,000-Cycle Mechanical Life Engineered for 100,000 actuations minimum mechanical lifetime, ensuring years of reliable door-open/close or button-press switching without degradation.
🌐
Universal Appliance Compatibility Direct fit for Power XL, COSORI, Crux, and Vortex air fryers; microwave ovens; induction cookers; electric kettles; washing machines; and game machines – one switch, countless devices.
🛠️
Tool-Friendly 2/3-Pin Layout Standard quick-connect tab terminals (2-pin NO or 3-pin NO/NC) allow screwdriver-only replacement in under 15 minutes – no soldering required.

💡 Pro Tip: Is Your KW7-0 Micro Switch the Culprit?

Your part is likely the culprit if you notice any of the following:

⚠️ Air fryer or microwave completely unresponsive when the door is closed or button is pressed

⚠️ Appliance starts intermittently – works sometimes but not others

⚠️ Heating cycle stops mid-cook with no error code displayed

⚠️ Audible click is missing when pressing the power/door button

🔍 Diagnostic Tip: Set a multimeter to continuity mode. With the switch at rest (normally open), probes on COM and NO terminals should show open circuit; pressing the actuator should give an immediate beep/continuity. If the switch fails to change state or shows intermittent continuity, replacement is confirmed. Always unplug the appliance before testing.

📦 What's in the Box

✅ 1× KW7-0 Micro Switch (16A 125V/250V, SPDT, normally open, 29×16×10 mm)

Questions & Answers

Is the KW7-0 normally open or normally closed?
Answered by Support Team  ·  Mar 15, 2024
The standard KW7-0 is a normally open (NO) SPDT micro switch. In its resting state the circuit between COM and NO terminals is open; pressing the actuator closes it. The 3-pin version also provides a normally closed (NC) terminal that is closed at rest and opens when actuated. Always verify your appliance's wiring diagram to confirm which configuration you need before ordering.
Will this switch fit my Power XL Vortex air fryer?
Answered by Support Team  ·  Nov 20, 2023
Yes. The KW7-0 is the standard door/button interlock switch used across the Power XL Vortex line as well as COSORI and Crux air fryers. The 29×16×10 mm body and standard quick-connect tab terminals are a direct drop-in replacement. We recommend unplugging your unit and visually comparing the actuator position with your original switch before installation.
What is the difference between KW7-0 and KW7-0A?
Answered by Support Team  ·  Jan 8, 2025
The KW7-0A is a variant of the KW7-0 with an identical electrical rating (16A 125/250VAC SPDT) but is typically produced in a green housing and may have slightly different actuator travel. Electrically they are cross-compatible in most appliance applications. Our KW7-0 replacement is also interchangeable with the KW7-1, KW7-2, KW7-3, and KW7-9 variants.
How do I know if my micro switch has failed?
Answered by Support Team  ·  Jul 22, 2024
The easiest test is with a digital multimeter set to continuity mode. Disconnect the switch from the appliance (unplug first!), place probes on the COM and NO terminals. With no pressure on the actuator you should hear no beep (open circuit). Press the actuator – a continuous beep confirms the switch is good. If you get continuous beep at rest, or no beep when pressed, the switch has failed and needs replacement.
Can the KW7-0 be used in microwave oven door interlock applications?
Answered by Support Team  ·  Feb 10, 2026
The KW7-0 is rated 16A at 125/250VAC with a dielectric strength of 1800V AC between poles, making it suitable for many microwave door interlock positions. However, microwave ovens typically require two or three interlock switches in specific configurations (primary, secondary, and monitor). Always match the exact contact configuration (NO or NC) required for each switch position in your model's service manual, and ensure the actuator type matches the door latch geometry before installing.

We typically respond within 1 business day. Include your appliance model number for the fastest answer.




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    Disclaimer: Compatibility information, part numbers, and model fitment data on this page are sourced from manufacturer databases and third-party references. While we strive for accuracy, please verify your appliance model number before ordering. Heima is not responsible for errors or omissions in compatibility listings.

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