Call 07427 826446 between 07:00 and 21:00, seven days a week. Tell us which equipment has failed, its displayed temperature, any alarm code and whether other refrigeration on site is affected. You receive a fixed written quote before work starts. While attendance is being arranged, keep doors closed, record temperatures and follow your food safety procedures rather than relying on the cabinet display alone.
Contain the Breakdown Before It Disrupts the Whole Site
Start by identifying the extent of the failure without dismantling anything. Is one undercounter fridge warming up, are several cabinets showing alarms, or has an entire cold room stopped cooling? Check whether the site has lost power and whether a plug has been accidentally disconnected, provided access is safe. Note any recent power interruption, delivery, cleaning activity or change to the controller settings. These details help distinguish an individual equipment failure from a problem affecting the wider premises.
Keep unaffected refrigeration in normal operation and minimise door opening on the failed unit. Stop loading it with new stock, particularly warm deliveries, and move vulnerable products into suitable working storage if your food safety procedures require it. If there is smoke, a burning smell, damaged wiring or repeated electrical tripping, stop using the equipment and isolate it only if safe to do so. Do not repeatedly reset a breaker or bypass a protective device to keep trading.
Protect Chilled and Frozen Stock Using Recorded Temperatures
For food businesses in England, foods requiring chilled temperature control must generally be held at 8°C or below, subject to specific legal exemptions. Setting refrigeration at 5°C or below provides operating headroom, but an air-temperature display does not establish the temperature or safety of every product. During a breakdown, follow your HACCP-based food safety procedures, take representative product temperatures using an appropriate clean probe and record when the fault was discovered. Keep those records with any stock-transfer or disposal decisions.
Frozen food is normally stored at −18°C or colder, although product requirements and permitted tolerances vary. A brief rise in cabinet air temperature during defrost is not the same as prolonged warming or thawing of the food. Record the duration and extent of any temperature deviation and assess affected stock under your food safety procedures. Do not assume that cooling or freezing it again makes it safe. An engineer restoring refrigeration cannot retrospectively confirm that compromised food is suitable for sale.
Recognise How Different Breakdowns Affect Cooling
A cabinet can sound as though it is running while delivering little useful cooling. A failed evaporator fan may leave uneven temperatures inside; an iced evaporator can restrict airflow after a defrost heater, termination sensor or drain fault. At the condenser, blocked airflow or a failed fan can cause excessive operating pressure and protective shutdowns. In a busy London kitchen, grease deposits, boxed-in equipment and high ambient temperatures can compound the original fault rather than explain it completely.
A unit that will not start may have a controller, temperature probe, contactor, starting component or compressor protection fault. Equipment that runs continuously without reaching temperature may have excessive heat entering through a damaged door seal, a refrigerant leak or a restriction in the circuit. These symptoms overlap, so a warm cabinet does not automatically need more refrigerant. Record what you see and hear, including intermittent operation, unusual icing and alarm messages, but leave electrical panels and refrigerant connections untouched.
Prepare the Information and Access Needed for a Breakdown Visit
When calling, give the equipment make, model and serial number if they are readable without moving the unit or removing covers. A photograph of the data plate can identify the specified refrigerant, electrical supply and other useful equipment details. Explain whether the problem is constant or intermittent, when temperatures last appeared normal and whether anyone has already changed settings or attempted a reset. For a cold room, include whether the door closes properly and whether the internal fans appear to operate.
London sites often have practical access constraints: basement kitchens, loading restrictions, shared service yards and condensers located away from the refrigerated space. Tell us about entry arrangements, stairs, parking restrictions and any permission needed to access plant areas. Nominate someone who can authorise work and explain the operational priorities, such as preserving the only chilled store before reopening a display cabinet. Keep the equipment accessible without compromising fire routes, and avoid moving heavy cabinets or working at height yourself.
Agree the Breakdown Work Before Authorising It
The appropriate work depends on the failed component and the condition of the equipment, not simply the temperature shown on arrival. A fan motor fault, failed relay or defrost problem needs a different intervention from a leaking refrigerant circuit or damaged compressor. Ask what has failed, what the proposed work includes and whether another defect could prevent reliable operation. Air Conditioning Installation London provides a fixed written quote before work starts, so you can make an informed decision before authorising the work.
The refrigerant on the data plate matters. Older equipment may contain R404A, while other systems use refrigerants such as R448A, R449A or R290 propane. These are not interchangeable, and R290 is flammable rather than an F-Gas. Work involving fluorinated refrigerants must meet applicable F-Gas requirements, including appropriately qualified personnel, recovery rather than deliberate venting, and relevant leak checks and records. High-GWP refrigerant restrictions can also affect servicing options. A refrigerant loss should not be treated as a routine top-up without addressing the leak.
Return Equipment to Use on Evidence, Not Just a Cleared Alarm
Restarting the compressor or clearing an alarm is only part of returning refrigeration to service. Relevant checks after the work can include fan operation, controller response, door closure, condensate drainage and whether temperatures are pulling down as expected. Where the fault involved defrost, the defrost controls and termination need attention too. An empty cabinet reaching its set point is not proof that it can immediately accept a full warm load; follow the equipment instructions and your site’s loading procedures.
Before putting stock back, confirm that storage temperatures are suitable and continue recording them under your food safety procedures. Keep a record of the reported fault, work completed and any outstanding limitation, particularly if equipment must remain out of use pending further work. To arrange commercial refrigeration breakdown support in London, call 07427 826446. We are open seven days a week, 07:00–21:00, and cover all 32 London boroughs, the City of London and M25 towns.
Book an engineer
Fixed written quote before any work starts. 7 days a week, 07:00–21:00.
Frequently asked questions
What should I tell you when reporting a commercial refrigeration breakdown?
Give your site address, contact number, equipment type and current temperature reading. Include the make, model, alarm code and refrigerant details if these are safely visible. Explain when the problem started, whether stock temperatures have been checked and whether other units are affected. Mention access restrictions and any burning smell or electrical tripping. Do not remove covers to obtain information.
Should I switch off a fridge that has stopped cooling?
There is no single rule for every breakdown. Smoke, a burning smell, damaged wiring or repeated tripping means the equipment should not remain in use; isolate it only if safe. If it is simply warming up, keep doors closed, protect stock and seek advice before changing its operating state. Avoid repeated resets, which can obscure the fault and expose components to further stress.
Does a warm refrigeration cabinet need more refrigerant?
Not necessarily. Failed fans, ice-blocked airflow, dirty condensers, faulty probes and doors that do not seal can all produce poor cooling. Refrigerant operates in a sealed circuit and is not normally consumed. If the charge is low, a leak or previous intervention needs investigation. Adding refrigerant without identifying the cause may leave the breakdown unresolved and create avoidable environmental and compliance problems.
Can the equipment go straight back into use after the breakdown work?
Only once it is operating correctly and suitable storage temperatures have been established. Pull-down time depends on the equipment, ambient conditions and load, so a cleared alarm alone is insufficient. Continue checking temperatures and follow your food safety procedures before reloading. Stock that warmed during the breakdown needs its own assessment; restoring the cabinet temperature does not establish that the food remained safe.
What are your opening hours, coverage and quotation arrangements?
Air Conditioning Installation London is open seven days a week, from 07:00 to 21:00. Coverage includes all 32 London boroughs, the City of London and M25 towns. Call 07427 826446 with the equipment details and site location to discuss the breakdown and attendance arrangements. We are REFCOM F-Gas registered, and you receive a fixed written quote before work starts.