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GE · JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking

GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking F4 Error Fix: Humidity Sensor Open Circuit

The humidity sensor circuit is open — the sensor used for auto-cook and sensor-cook functions cannot detect moisture/steam levels; manual cooking modes still work; the humidity sensor is mounted in the microwave cavity wall; on basic models without sensor cooking capabilities, this code will not appear

Medium severity2 fixes available✨ Free fix available

Quick Answer

Error F4 on the GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking means: Humidity Sensor Open Circuit. The top-ranked community fix is “Replace the Humidity Sensor Assembly” (medium difficulty, ~40 min, DIY cost: $20-$30). 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: $140-$200.

Other GE Models with Error F4

JB645RKSS 30 in 5.3 cu ft Electric Range with Convection Oven and Self-Clean

oven · 2 fixes

JB655SKSS 30 in 5.3 cu ft Slide-In Electric Convection Oven Stainless Steel

oven · 2 fixes

JB655YKFS 5.3 cu ft Electric Range with Self-Clean

oven · 2 fixes

JB735SPSS 5.3 cu ft Freestanding Electric Convection

oven · 2 fixes

JB750SJSS Electric Convection Range

oven · 2 fixes

JES1095SMSS 0.9 cu ft Countertop Microwave

microwave · 2 fixes

JES1145SHSS 1.1 cu ft Countertop with Turntable

microwave · 2 fixes

JES1460DSBB 1.4 cu ft Countertop Sensor Cook

microwave · 2 fixes

JGB735SPSS 5.0 cu ft Freestanding Gas Convection

oven · 2 fixes

JGBS10DEMWW 5.0 cu ft Free-Standing Gas Range

oven · 2 fixes

JGBS66REKSS 5.0 cu ft Freestanding Gas with Griddle

oven · 2 fixes

JGS760SPSS 5.6 cu ft Slide-In Gas Convection

oven · 2 fixes

JNM3163RJSS 1.6 cu ft Over-the-Range with Recirculating Vent

microwave · 2 fixes

JS645SLSS 5.3 cu ft Slide-In Electric Range

oven · 2 fixes

JVM3160RFSS 1.6 cu ft Over-the-Range Microwave

microwave · 2 fixes

JVM6175SKSS 1.7 cu ft Over-the-Range Microwave Stainless Steel

microwave · 2 fixes

JVM6175YKFS 1.7 cu ft Over-the-Range with Sensor Cook

microwave · 2 fixes

JVM7195SKSS 1.9 cu ft Smart Over-the-Range with Scan-to-Cook

microwave · 2 fixes

Other GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking Error Codes

Oven Cavity Thermistor Open Circuit

2 fixes

Oven Cavity Thermistor Shorted

2 fixes

Shorted Key Panel (Stuck Key)

2 fixes

Shorted Temperature Probe Circuit

2 fixes

MECH-ARCING

Sparking or Arcing Inside Microwave

2 fixes

MECH-BUTTONS

Touch Pad Buttons Unresponsive

2 fixes

MECH-INTERLOCK

Door Interlock Switch Failure (Blows Fuse)

2 fixes

MECH-LATCH

Door Latch Broken or Not Latching

2 fixes

People Also Ask About GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking Error F4

What does error code F4 mean on a GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking?

Error code F4 on the GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking means: Humidity Sensor Open Circuit. The humidity sensor circuit is open — the sensor used for auto-cook and sensor-cook functions cannot detect moisture/steam levels; manual cooking modes still work; the humidity sensor is mounted in the microwave cavity wall; on basic models without sensor cooking capabilities, this code will not appear

How do I fix error code F4 on my GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking?

The most successful fix is "Replace the Humidity Sensor Assembly" (medium difficulty, ~40 minutes). Estimated DIY cost: $20-$30. HomeMD has 2 community-ranked fixes for this error.

Is error code F4 on a GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking 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 GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking error F4 myself?

Yes — the top-ranked community fix ("Replace the Humidity Sensor Assembly") is rated medium difficulty and takes about 40 minutes. Tools needed: Phillips screwdriver, Multimeter.

How much does it cost to repair GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking error F4?

DIY cost: $20-$30. Professional repair typically costs $140-$200. Many homeowners save money by trying the top-ranked community fix first.

What other error codes does the GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking have?

The GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking has 8 other known error codes, including: F1 (Oven Cavity Thermistor Open Circuit), F2 (Oven Cavity Thermistor Shorted), F3 (Shorted Key Panel (Stuck Key)), F6 (Shorted Temperature Probe Circuit), MECH-ARCING (Sparking or Arcing Inside Microwave), and 3 more.

Which other GE models have the F4 error?

Error code F4 also appears on 18 other GE models: JB645RKSS 30 in 5.3 cu ft Electric Range with Convection Oven and Self-Clean, JB655SKSS 30 in 5.3 cu ft Slide-In Electric Convection Oven Stainless Steel, JB655YKFS 5.3 cu ft Electric Range with Self-Clean, JB735SPSS 5.3 cu ft Freestanding Electric Convection, JB750SJSS Electric Convection Range, JES1095SMSS 0.9 cu ft Countertop Microwave, and 12 more. The fix may vary by model, so check each model's specific page for tailored repair steps.

What other error codes does the GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking have?

The GE JES2051SNSS 1.0 cu ft 950W Countertop Microwave with Sensor Cooking has 8 other known error codes:

F1 — Oven Cavity Thermistor Open Circuit (2 fixes)
F2 — Oven Cavity Thermistor Shorted (2 fixes)
F3 — Shorted Key Panel (Stuck Key) (2 fixes)
F6 — Shorted Temperature Probe Circuit (2 fixes)
MECH-ARCING — Sparking or Arcing Inside Microwave (2 fixes)
MECH-BUTTONS — Touch Pad Buttons Unresponsive (2 fixes)
MECH-INTERLOCK — Door Interlock Switch Failure (Blows Fuse) (2 fixes)
MECH-LATCH — Door Latch Broken or Not Latching (2 fixes)

Which other GE models have the F4 error?

Error code F4 also appears on 18 other GE models:

JB645RKSS 30 in 5.3 cu ft Electric Range with Convection Oven and Self-Clean (oven) · 2 fixes
JB655SKSS 30 in 5.3 cu ft Slide-In Electric Convection Oven Stainless Steel (oven) · 2 fixes
JB655YKFS 5.3 cu ft Electric Range with Self-Clean (oven) · 2 fixes
JB735SPSS 5.3 cu ft Freestanding Electric Convection (oven) · 2 fixes
JB750SJSS Electric Convection Range (oven) · 2 fixes
JES1095SMSS 0.9 cu ft Countertop Microwave (microwave) · 2 fixes
JES1145SHSS 1.1 cu ft Countertop with Turntable (microwave) · 2 fixes
JES1460DSBB 1.4 cu ft Countertop Sensor Cook (microwave) · 2 fixes
JGB735SPSS 5.0 cu ft Freestanding Gas Convection (oven) · 2 fixes
JGBS10DEMWW 5.0 cu ft Free-Standing Gas Range (oven) · 2 fixes
JGBS66REKSS 5.0 cu ft Freestanding Gas with Griddle (oven) · 2 fixes
JGS760SPSS 5.6 cu ft Slide-In Gas Convection (oven) · 2 fixes
JNM3163RJSS 1.6 cu ft Over-the-Range with Recirculating Vent (microwave) · 2 fixes
JS645SLSS 5.3 cu ft Slide-In Electric Range (oven) · 2 fixes
JVM3160RFSS 1.6 cu ft Over-the-Range Microwave (microwave) · 2 fixes
JVM6175SKSS 1.7 cu ft Over-the-Range Microwave Stainless Steel (microwave) · 2 fixes
JVM6175YKFS 1.7 cu ft Over-the-Range with Sensor Cook (microwave) · 2 fixes
JVM7195SKSS 1.9 cu ft Smart Over-the-Range with Scan-to-Cook (microwave) · 2 fixes

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