Whirlpool Fridge E3 Error — Refrigerator Sensor Fault

What Does This Error Mean?

E3 means the temperature sensor in the refrigerator section is reading out of range — usually shorted or open.
The fridge falls back to a default cooling pattern, which usually keeps food safe but isn't precise.
Verify temperatures with a thermometer and book service — the sensor itself is inexpensive but accessing it requires removing the rear interior panel.

Affected Models

Whirlpool WRF555SDFZ
Whirlpool WRX735SDHZ
Whirlpool WRS588FIHZ
Whirlpool WRT318FZDB
Whirlpool WRF767SDHZ

Common Causes

Failed thermistor in the refrigerator section
Loose connector at the sensor or main control board
Damaged wiring from frost cycles (uncommon)
Moisture in the sensor housing causing intermittent shorts
Control board input fault (rare)

How to Fix It

Verify temperatures with a thermometer.

Place a fridge thermometer in the centre of the fridge section for a few hours.
Should read 3–5°C (37–41°F).
If it's at target, you're cooling on fallback values and food is safe — this isn't an emergency.
If it's above 7°C (44°F), move perishables to a cooler.
Cut power for 10 minutes.

Unplug the fridge or trip the breaker for 10 minutes.
A power-cycle clears soft sensor reads.
If E3 returns immediately on restart, the fault is hardware, not transient.
Look for water stains or frost in unusual places.

Sensor failures sometimes follow a moisture event — a defrost drain backing up, a leaking water line, or a long door-open episode.
Wipe down any visible water with a clean cloth and dry the affected area.
This won't fix the sensor itself but can prevent further damage.
Book service.

Provide the Whirlpool model number from the door jamb sticker.
The technician will confirm the failed sensor, swap it, and verify cooling before leaving.
Whole job is typically 45–60 minutes.

When to Call a Professional

E3 is service-only.
Sensor parts run $20–$50.
Labour to access the sensor — typically through the rear interior panel — adds $120–$180.
Total cost is usually $150–$230 fitted.

Frequently Asked Questions

Will my food be okay until service arrives?

Almost always yes.
Whirlpool's fallback temperature is close to the normal target — within 1–2°C.
Check with a thermometer to be sure.
If you've got perishables and the fridge is running warm, move them to a cooler as a precaution; otherwise just wait for service.

Can I replace the Whirlpool fridge sensor myself?

If you're handy, yes.
The sensor is on a clip behind the rear interior panel of the fridge section.
Remove the panel, unclip the sensor, swap it, reconnect.
Total time is about 30 minutes.
Use the model number to order the right Whirlpool-compatible sensor — they're not all the same shape.