Hotpoint RVM5160DHWW 1.6 cu ft Over-the-Range Microwave with 1000 Watts and Sensor Cooking MECH-LIGHT Error Fix: Interior Light or Range Light Not Working

Error code MECH-LIGHT on the Hotpoint RVM5160DHWW 1.6 cu ft Over-the-Range Microwave with 1000 Watts and Sensor Cooking means: Interior Light or Range Light Not Working. The microwave cavity light, the cooktop surface light (illuminates the stovetop below on OTR models), or both are not working — replace the light bulb with the correct appliance-rated bulb specified for the model; OTR microwaves typically have two separate light circuits: an interior cavity light and an under-cabinet range surface light; access to the bulbs varies by model — some are behind a panel inside the cavity, others are accessed from underneath the unit; if new bulbs do not fix the issue, the light socket or associated switch may be faulty; the surface light switch is on the control panel; the cavity light activates when the door is opened via the door switch or via a manual button

The most successful fix is "Test and Replace Faulty Light Socket or Switch" (medium difficulty, ~45 minutes). Estimated DIY cost: $10-$20. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Test and Replace Faulty Light Socket or Switch") is rated medium difficulty and takes about 45 minutes. Tools needed: Phillips screwdriver, Multimeter.

DIY cost: $10-$20. Professional repair typically costs $100-$140. Many homeowners save money by trying the top-ranked community fix first.

The Hotpoint RVM5160DHWW 1.6 cu ft Over-the-Range Microwave with 1000 Watts and Sensor Cooking has 8 other known error codes, including: F1 (Oven Cavity Thermistor Open Circuit), F2 (Oven Cavity Thermistor Shorted), F3 (Shorted Touch Pad — Stuck Key Detected), F4 (Humidity Sensor Open Circuit), MECH-ARCING (Sparking or Arcing Inside Cavity), and 3 more.

Error code MECH-LIGHT also appears on 2 other Hotpoint models: RBS360DMWW 5.0 cu ft 30 in Free-Standing Electric Range with Self-Clean Oven, RGA724EKWH 5.0 cu ft 30 in Gas Range with Sealed Burners and Continuous Grates. The fix may vary by model, so check each model's specific page for tailored repair steps.