Temperature diagnosis
Compartment behaviour, controls, sensors and operating pattern are checked methodically.
Alesta · Fridge and freezer repairs in London
Practical diagnosis for appliances that are warming, icing, leaking or running unusually, with model and installation details gathered before the visit.
☎ Call 020 3608 3976Temperature symptom before parts
A warm fridge with a cold freezer can indicate airflow or defrost trouble, while both compartments warming may involve controls, fans, the compressor or the sealed refrigeration system. Frost, noise and water also need their source identified rather than guessed.
Tell us the make, model, displayed temperature and when the fault started. Integrated cabinetry, ventilation clearance and recent door or power issues help determine the likely access and appropriate engineer.
Compartment behaviour, controls, sensors and operating pattern are checked methodically.
Fans, vents, ice build-up and accessible defrost components are considered.
Seals, alignment, condensation paths and drain points are checked where relevant.
Agreed components are fitted and operation reviewed within practical test time.

Common reasons customers call
Airflow, fan or defrost problems may prevent cold air reaching the fresh-food section.
A seal, sensor, heater, drain or defrost-control issue may be allowing abnormal frost.
Condensation drainage, door closure or a connected water supply needs assessment.
Fan contact, poor ventilation or a cooling-system problem can change the operating sound.
Why Alesta for cooling appliances
Rating-plate information helps identify components and integrated access before arrival.
Customers are advised not to rely on uncertain temperatures while diagnosis is pending.
Airflow, defrost, controls and sealed refrigeration are not treated as one generic repair.
Parts, age and sealed-system complexity inform whether further work is sensible.
A temperature-led diagnosis

The repair starts with temperature behaviour over time. We ask which compartment is affected, whether the display matches an independent reading, how often the compressor or fan runs and whether frost, water or an error code is present. The make, model and installation type are essential. Food should be moved to safe alternative storage if temperatures cannot be trusted; a service visit cannot restore food safety retrospectively.
At the property, the engineer checks controls, door closure, seals, ventilation and visible ice or moisture patterns. Accessible fans, sensors, drains and defrost components are assessed according to the symptom. Power and control checks help distinguish a local electrical fault from a cooling-system issue. Integrated appliances may require careful removal, and cabinetry or ventilation defects can contribute without being an appliance component failure.
If a practical repair is identified, the required work and model-specific part are explained. Fans, thermostats, sensors, heaters, seals and control parts may be replaceable, subject to availability. Compressor and sealed-system work requires specialist equipment and may be uneconomical on some appliances. Heavy ice may also require a controlled defrost period before reliable testing or access is possible, so not every fault can be completed immediately.
After agreed work, the appliance is reassembled and relevant functions are checked. Cooling recovery takes time, so an instant air reading does not prove stable food-storage temperature; the customer is told how long to wait and what to monitor. Door closure, noise and obvious leaks are reviewed before handover. The findings, repair, part warranty where applicable and any installation limitation are explained clearly.
Clear pricing
Cost depends on appliance type, integrated access, diagnosis, model-specific parts and whether sealed-system work is involved.
| Service scope | Price | What affects the final price |
|---|---|---|
| Diagnostic visit | From £60 | Model, installation, fault pattern and test time |
| Common fan, sensor or control repair | Typically £80–£200 | Component, access, labour and part availability |
| Compressor or sealed-system work | From £200 | Refrigerant system, specialist equipment, model and repair value |
Pricing context: Audited appliance pricing includes diagnosis from around £60, common repairs from roughly £80 and specialist sealed-system work from about £200. Parts and integrated access affect confirmation.
How the service works
Tell us which compartment is affected, error codes, frost, water and noise.
The engineer follows the symptom through the relevant accessible systems.
Agreed work is checked and the correct monitoring period is explained.
Fridge and freezer repair FAQ
Useful answers about food safety, frost, integrated access, parts and pricing.
☎ Call 020 3608 3976Move perishable food to verified cold storage and follow food-safety guidance. Do not rely on smell or appearance to judge whether warming food is safe.
Only if instructed. Photographs of the frost pattern can help diagnosis, while heavy ice may require a planned defrost before components are accessible.
Yes, subject to safe removal and ventilation access. Share photographs of the cabinetry and model plate because installation condition can affect the visit.
A fan, vent, damper or defrost problem may prevent cold air moving into the fridge compartment. Testing is needed to identify the cause.
Often, if the correct model-specific seal is available and the door or cabinet is not distorted. Alignment is checked before replacement.
No. Refrigerant is not consumed during normal use. A low charge indicates a leak or sealed-system issue that must be assessed properly.
Model, integrated access, diagnosis time, component availability, ice build-up and any sealed-system work affect the total.