LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean EXHAUST FAN NOISE Error Fix: Exhaust Fan Motor Noise/Failure

Over-the-range ventilation fan develops bearing noise or fails. Fan motor in top of unit. Replacement requires removing microwave from wall — two-person job (50-70 lbs).

Medium severity2 fixes available

Quick Answer

Error EXHAUST FAN NOISE on the LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean means: Exhaust Fan Motor Noise/Failure. The top-ranked community fix is “Replace the Exhaust Fan Motor Assembly” (hard difficulty, ~90 min, DIY cost: $20-$40). 2 community-ranked fixes available below.

Published February 2026 · 2 fixes · microwave

Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.

When to Call a Professional

While many microwave repairs can be done safely at home, consider hiring a qualified technician if:

The repair involves electrical wiring, gas lines, or refrigerant
You've tried the top-ranked fix and the error persists
You smell gas, see sparking, or notice water leaking
The repair requires specialized tools you don't have
Your appliance is still under manufacturer warranty

Average professional repair cost for this issue: $250-$400.

Other LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean Error Codes

DOOR SWITCH FAIL

Door Switch Failure

2 fixes

F-1

Open Thermistor / Thermal Error

Shorted Thermistor

Touchpad Shorted Key

Humidity Sensor Error

Control Board Error

Magnetron Failure

Sensor Error / Key Input Error

2 fixes

People Also Ask About LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean Error EXHAUST FAN NOISE

What does error code EXHAUST FAN NOISE mean on a LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean?

Error code EXHAUST FAN NOISE on the LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean means: Exhaust Fan Motor Noise/Failure. Over-the-range ventilation fan develops bearing noise or fails. Fan motor in top of unit. Replacement requires removing microwave from wall — two-person job (50-70 lbs).

How do I fix error code EXHAUST FAN NOISE on my LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean?

The most successful fix is "Replace the Exhaust Fan Motor Assembly" (hard difficulty, ~90 minutes). Estimated DIY cost: $20-$40. HomeMD has 2 community-ranked fixes for this error.

Is error code EXHAUST FAN NOISE on a LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean serious?

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

Can I fix LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean error EXHAUST FAN NOISE myself?

Yes — the top-ranked community fix ("Replace the Exhaust Fan Motor Assembly") is rated hard difficulty and takes about 90 minutes. Tools needed: Phillips screwdriver, T20 Torx screwdriver, Multimeter, Two-person lift.

How much does it cost to repair LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean error EXHAUST FAN NOISE?

DIY cost: $20-$40. Professional repair typically costs $250-$400. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean have?

The LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean has 8 other known error codes, including: DOOR SWITCH FAIL (Door Switch Failure), F-1 (Open Thermistor / Thermal Error), F-2 (Shorted Thermistor), F-3 (Touchpad Shorted Key), F-4 (Humidity Sensor Error), and 3 more.

What other error codes does the LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean have?

The LG LMHM2237ST 2.2 cu. ft. Over-the-Range Microwave with EasyClean has 8 other known error codes:

DOOR SWITCH FAIL — Door Switch Failure (2 fixes)
F-1 — Open Thermistor / Thermal Error (2 fixes)
F-2 — Shorted Thermistor (2 fixes)
F-3 — Touchpad Shorted Key (2 fixes)
F-4 — Humidity Sensor Error (2 fixes)
F-5 — Control Board Error (2 fixes)
MAGNETRON FAIL — Magnetron Failure (2 fixes)
SE — Sensor Error / Key Input Error (2 fixes)

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