Home › GE Monogram Problems › Refrigerator Thermistor Fault
Serving the San Mateo metro

GE Monogram Refrigerator Thermistor Fault

Refrigerator Thermistor Fault is usually one of a small number of specific, repairable causes — here's what to check and when it's worth calling a professional.

Call (650) 844-1363
4.9(206 reviews)
Same-day service
Oven element replacement during an appliance repair visit in the Peninsula, California
Skilled & Experienced
Licensed & Insured
Genuine OEM Parts
Up to 1-Yr Warranty

Common Causes

A drifted or failed temperature sensor

These components measure cavity or cabinet temperature and can fail gradually rather than all at once.

A damaged sensor wire or connector

Physical damage or a loose connection can produce the same symptoms as a failed sensor.

A control board misreading a healthy sensor

Less common, but worth ruling out if a replaced sensor doesn't resolve the issue.

Local conditions that matter here

The Peninsula holds the densest concentration of Eichlers anywhere — more than 2,700 in Palo Alto, and roughly 650 in the San Mateo Highlands. Radiant heat is cast into the slab, there is no crawlspace and no attic, and the kitchen is usually a post-and-beam bay with glass to the floor. Where a unit sits against that glass, solar gain on a west elevation does work a catalogue figure never accounted for.

What You Can Check Yourself

Note whether temperature seems consistently off by the same amount, or fluctuates unpredictably
Confirm no error code accompanies the temperature issue

Parts That Most Likely Need Replacing

Based on symptoms like this, these are the components our technicians check first. The exact part depends on your model and what we find during diagnosis.

Temperature Sensor (Thermistor/RTD)
Sensor Wiring Harness
Control Board

In and around South San Francisco

South San Francisco — Post-war hillside tracts in the fog belt, compact kitchens and steep access on much of the older stock. We also cover Pacifica, San Bruno, Brisbane across North County.

ZIP codes we cover in South San Francisco: 94080, 94083, 94128

Most cases like this are fine to schedule within a day or two, though it's worth having looked at before it gets worse. If you're seeing a code on the display alongside this issue, our GE Monogram error code guide can help narrow down the cause before we arrive. Either way, our repair service covers same-day diagnosis and a flat-rate quote before any work begins.

Common Questions About Refrigerator Thermistor Fault

Can I keep using my GE Monogram appliance while this happens?
If it's still working normally otherwise, short-term use usually isn't harmful — but a persistent issue means something is actively failing, and continuing to run the unit can turn a smaller repair into a larger one. We'd recommend having it looked at within a few days rather than waiting until it fails entirely.
Will refrigerator thermistor fault go away on its own?
Occasionally a one-off glitch clears itself after a power cycle, but if it's a specific component wearing out, it will keep coming back and typically gets worse over time rather than resolving on its own.
How much does this repair typically cost?
It depends on which component is at fault. We charge a flat diagnostic fee and provide a firm quote before any repair work begins — see our repair pricing page for typical ranges.
How long does a typical repair visit take?
Most single-component repairs are completed in one visit, often within an hour or two once the part is confirmed. We'll give you a specific estimate after diagnosis.
Do you offer a warranty on the repair?
Yes — every repair includes a written warranty of up to 1 year on parts and labor.
Do you service GE Monogram appliances in my area?
Likely yes — we cover San Mateo and 33 surrounding communities. See our full service area list to confirm.

Still having this issue?

Same-day diagnosis, genuine OEM-compatible parts, warranty of up to 1 year.

Call (650) 844-1363

*SubZero Repair San Mateo is an independent repair company and is not affiliated in any way with Sub-Zero, Inc., Wolf Appliance, Inc., or any of their distributors. We are not a factory service provider and specialize exclusively in out-of-warranty appliance repairs.

© 2026 SubZero Repair San Mateo. All rights reserved.
2121 S El Camino Real, San Mateo, CA 94403 · (650) 844-1363
Call (650) 844-1363