How to Replace a Fridge Thermostat
If your analogue thermostat is inaccurate or the fridge won't cycle correctly, replacing the thermostat restores proper temperature control. (Digitally controlled models may use thermistors and a control board.)
Get a Confirmed Fit spare part
At Spares2Repair, when a spare part is matched to your exact model number we call that Confirmed Fit. Because spare parts can vary across production runs, sizes, and revisions, Confirmed Fit is the safest route to reduce wrong-part orders and buy with more confidence.
Option 1Search by full model numberEnter the full model number in the search box above to reach the most accurate spare-part route for your appliance and check for Confirmed Fit.
Option 2Use Fixit Fox FinderUpload a photo of the rating plate, describe the appliance, or get guided help if the model number is hard to read before you order.Option 3Browse spare partsBrowse the main spare-parts category for this appliance, then confirm compatibility by model number before checkout.Start with the search box whenever you have the full model number. Use Fixit Fox Finder if the rating plate is hard to read or you want guided help before ordering. Ordering by appearance alone is more likely to lead to the wrong part.
Browse Fridge & Freezer spare partsWhat Confirmed Fit meansContact customer service
Before you order, use Confirmed Fit
For advice and repair topics like this one, the biggest buying mistake is ordering on appearance alone. Search by the exact model number wherever possible, because small appliance revisions can use different seals, filters, motors, pumps, lamps, shelves, or trims.
Step 1Find the full model numberUse the rating plate, product label, or model-number guide before comparing part photos or sizes.Step 2Understand Confirmed FitUse the full model code, not a short range name, because revisions and production runs can use different parts.Step 3Browse Fridge Freezer spare partsMove from advice into the relevant category page, then confirm compatibility by model number before buying.
At a Glance
- This guide explains likely causes, quick checks, and step-by-step diagnosis.
- Includes parts and tools you may need, and prevention tips.
- Estimated time: 15-60 minutes depending on fault.
Safety First
Always disconnect power before removing panels or handling internal components. If you smell burning, see smoke, or suspect a refrigerant/sealed-system issue, stop and consult a qualified engineer.
Before You Start
- Unplug the fridge; remove food near the control housing.
- Take photos of wiring before removal.
Tools & Parts
- Replacement thermostat (model-specific)
- Small screwdrivers, needle-nose pliers
- Multimeter for continuity
Steps
- Remove the control knob and housing cover.
- Disconnect the capillary sensor from its tube/clip without kinking it.
- Label and remove the wiring from the old thermostat.
- Install the new unit, route the capillary as per the original, and reconnect wiring.
- Refit the knob, restore power, and test at 3-5°C.
Notes
For electronic controls, diagnose thermistors and control boards first; replacing a mechanical thermostat won't fix sensor/PCB faults.
FAQ
How do I know this repair is relevant to my appliance?
If your analogue thermostat is inaccurate or the fridge won't cycle correctly, replacing the thermostat restores proper temperature control. (Digitally controlled models may use thermistors and a control board.)
Do I need the full model number before ordering the replacement part?
Use the full model number exactly as shown on the rating plate. When Spares2Repair matches that model to a compatible part we call it Confirmed Fit. Similar-looking parts can differ across revisions, production runs, and variants, so model matching is the safest route before ordering.
What should I check before stripping the appliance down?
Confirm the fault symptoms first, isolate the appliance safely, and make sure the replacement part is model-matched before taking the appliance apart any further.