Choose Product
Identify Problem
03
Find Solutions
HomeRepair HelpDanby Microwave RepairDanby Microwave light bulb not working Repair

Danby Microwave light bulb not working

When your Danby microwave light is not working, the light bulb itself is the most likely cause. A burned-out microwave light bulb is usually resolved by replacing the bulb, so check it before replacing other components. Some Danby models use a halogen lamp, which you can test for electrical continuity with a multimeter or try in an identical socket. If the bulb or halogen lamp is good, inspect the light socket and wire harness, then test the main control board to confirm it is sending the correct voltage to the socket. A defective control board can also cause a microwave light bulb not working, although this is less common. Next, test the door switch, including the primary, secondary, or monitor switch, because a failed switch may not signal the control board when the door opens or closes. A faulty micro switch can cause the same microwave light not working symptom. Enter your Danby microwave model number to find the exact light bulb, halogen lamp, switch, socket, or control board for your appliance. If any repair requires opening the outer cabinet, unplug the microwave first and note that its high-voltage capacitor can store a lethal charge even after unplugging. Proper capacitor discharge is required, so use a qualified technician if you are not familiar with that procedure.

01 - Danby Microwave Light Bulb

The light bulb itself might be burned out. Replace the light bulb before replacing any of the parts associated with the light bulb
Enter model number to search for the required part specific to your product
Need help finding your model number?
Shop all Danby Microwave Light Bulb Parts
Top Solution

02 - Danby Microwave Halogen Lamp

To determine if a halogen lamp has failed, you can use a multimeter to test it for electrical continuity, or install the lamp into an identical socket to test it.
Shop all Danby Microwave Halogen Lamp Parts
Top Solution

03 - Danby Microwave Main Control Board

Before replacing the control, check the light bulbs, sockets, and wiring. If these parts seem to be working properly, test the control board with a multimeter to determine if it sending the correct voltage to the light bulb socket. If the control board is not sending enough voltage to the light bulb socket, replace the control board.
Shop all Danby Microwave Main Control Board Parts
Highly Likely

04 - Danby Microwave Door Switch

A defective door switch may not signal the control board that the door is open or closed which may prevent the microwave light from turning on or prevent the button that controls the light from functioning. To determine if any of the door switches are defective, use a multimeter to test each of the switches for continuity. If any of the door switches do not have continuity, the switch or switches should be replaced.
Shop all Danby Microwave Door Switch Parts
Highly Likely

05 - Danby Microwave Control Board

A microwave light bulb not working could be caused by a defective control board, although this is rarely the case. Before replacing the control board, check the light bulbs, sockets, and wiring. If these parts seem to be working properly, test the control board with a multimeter to determine if it sending the correct voltage to the light bulb socket. If the control board is not sending enough voltage to the light bulb socket, replace the control board.
Shop all Danby Microwave Control Board Parts
Common

06 - Danby Microwave Micro Switch

A defective micro switch may not signal the control board that the door is open or closed which may prevent the microwave light from turning on or prevent the button that controls the light from functioning. To determine if any of the micro switches are defective, use a multimeter to test each of the switches for continuity. If any of the micro switches do not have continuity, the switch or switches should be replaced.
Shop all Danby Microwave Micro Switch Parts
Common

Frequently Asked Questions

Why is my Danby microwave light bulb not working?
How do I test a Danby microwave halogen lamp or light socket?
Can a Danby microwave door switch cause the light bulb not to work?
Could the Danby microwave control board be causing the light to stay off?
How do I find the correct Danby microwave light bulb replacement?

Shop by Danby Microwave Parts

Danby Microwave Adhesive Replacement Parts
Danby Microwave Blower Wheel & Fan Blade Replacement Parts
Danby Microwave Cap, Lid & Cover Replacement Parts
Danby Microwave Circuit Board & Timer Replacement Parts
Danby Microwave Door Replacement Parts
Danby Microwave Fastener Replacement Parts
Danby Microwave Gasket & Seal Replacement Parts
Danby Microwave Glass Tray, Coupler & Support Roller Replacement Parts
Danby Microwave Handle Replacement Parts
Danby Microwave Insulation Replacement Parts
Danby Microwave Latch Replacement Parts
Danby Microwave Leg, Foot & Caster Replacement Parts
Danby Microwave Miscellaneous Replacement Parts
Danby Microwave Motor Replacement Parts
Danby Microwave Power Cord Replacement Parts
Danby Microwave Sensor & Thermistor Replacement Parts
Danby Microwave Shelf & Shelf Support Replacement Parts
Danby Microwave Spring Replacement Parts
Danby Microwave Switch Replacement Parts
Danby Microwave Thermostat Replacement Parts

Shop by Popular Danby Microwave Models

Danby DMW101KSSDD Microwave Parts
Danby DMW1108BL Microwave Parts
Danby DMW111KPSSDD Microwave Parts
Danby DMW112BL Microwave Parts
Danby DMW112W Microwave Parts
Danby DMW1158W Microwave Parts
Danby DMW139W Microwave Parts
Danby DMW749SS Microwave Parts
Danby DMW752W Microwave Parts
Danby DMW773BL Microwave Parts
Danby DMW773W Microwave Parts
Danby DMW799BL Microwave Parts
Danby DMW799W Microwave Parts
Danby DMW902W Microwave Parts
Danby DMW904W Microwave Parts
Danby DMW911W Microwave Parts
View more
Repair Clinic
Join Repair Clinic's VIP email list for 10% off, plus other discounts and tips!
Our Story

Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.

About Repair Clinic
Customer StoriesRepair Parts BrandsDIY Repair BlogIn the News
Click for the BBB Business Review of this Appliances - Major - Parts & Supplies in Canton MI
Quick Links
Shipping Information365 Day Return PolicyRetail Location & HoursContact UsTrack OrderReviewsRepair Clinic Pro
Social Media
Privacy PolicyDo Not Sell/Share My Personal InformationTerms & ConditionsSitemapGet 10% Off
© 2026 RepairClinic.com