Fridgemaster fridge freezer compressor running constantly
My Fridgemaster fridge freezer (MC55251MD), a few months old — the motor never switches off, it just runs non-stop and the back is very hot. What should I check first?
Solution Summary
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Fridgemaster MC55251MD runs continuously and back gets very hot
- The problem
- A Fridgemaster fridge freezer, model MC55251MD, only a few months old, was reported to have a compressor/motor that never switched off and a very hot back panel area.
- Likely cause
- The discussion suggested installation or usage issues as the first things to rule out, especially temperature set too cold, poor door sealing, restricted ventilation, frost build-up, a warm room, or recent heavy loading. If it runs continuously and is not cooling properly, a control fault or sealed system fault was suggested as a possibility, but this was not confirmed.
- What fixed it
- The recommended action was to check the thermostat setting, door closure and seals, ventilation space around the appliance, any frost build-up, and whether warm ambient conditions or recent loading could explain long run times. Because the appliance was only a few months old, the strongest recommendation was to use the retailer or manufacturer warranty rather than attempt repairs. No confirmed repair was documented.
- Checks to try
- Temperature setting/thermostat position
- Door closing properly and door seals condition
- Ventilation space around the back, sides and top
- Frost or ice build-up
- Whether the kitchen was very warm
- Whether the appliance had recently been loaded with lots of fresh food
- Whether it was actually cooling properly
Safety: Isolate the appliance from the mains before inspecting anything internal. Further diagnosis should be carried out by a suitably qualified appliance engineer.
1 Answer
If it’s only a few months old, start with the simple things first because constant running can be caused by installation, settings, or airflow rather than a fault. A warm condenser area at the back is normal, but it should not be running flat-out all the time in normal conditions.
1. Check the temperature setting Make sure it hasn’t been turned too cold. If it has a numbered thermostat, try setting it to the middle position and give it 24 hours to settle.
2. Check door sealing and usage Make sure both doors shut properly, the seals are clean, and nothing inside is stopping the door closing fully. A poor seal will make the compressor run continuously.
3. Check ventilation around the appliance Fridge freezers need space around the back, sides and top to lose heat. If it’s pushed too tight into a unit or against the wall, the condenser can get very hot and the compressor may run almost constantly.
4. Check for frost or ice build-up If there is heavy frost on the back wall inside or around the freezer, airflow or defrosting may be affected, depending on the design.
5. Consider room temperature and recent loading If the kitchen is very warm, or you’ve recently loaded it with lots of fresh food, it may run for long periods. But after a day or so it should begin cycling off.
6. Check actual cooling If it is running constantly but not getting properly cold, that points more towards a fault such as a thermostat/control issue or sealed system problem.
Before inspecting anything internal, isolate the appliance from the mains. As it’s only a few months old, I’d strongly suggest using the retailer/manufacturer warranty rather than attempting repairs yourself, especially for mains or sealed refrigeration work.
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This answer was generated automatically by the WhitegoodsHelp AI Assistant. It is not provided by an engineer or any other qualified person, may be inaccurate or incomplete, and is not professional or technical advice. Do not rely on it. Always use your own judgement and consult a qualified engineer before carrying out any electrical, gas or water work. Use is entirely at your own risk. See our full Terms of Use.
SAFETY FIRST: READ BEFORE ACTING ON THIS GUIDANCE
Never work on a live appliance
Always unplug it at the mains before going near it with any tools.
Never attempt gas work
By law, gas appliances must only be worked on by a Gas Safe registered engineer. If your fault involves gas, stop and call a professional. Do not attempt it yourself.
Watch for sharp edges
Outer panels are smooth, but internal parts have sharp machined edges. Wear protective gloves and arm sleeves.
Water appliances can leak
Turn off the water supply before disconnecting any hoses.
Know your limits
If you are not confident testing or working inside the appliance, stop and call a professional.
AI guidance, not guaranteed
This response is generated automatically by the WhitegoodsHelp AI Assistant. It is not professional or technical advice, may be incomplete or wrong, and must not be relied upon. Always use your own judgement and consult a qualified engineer before any electrical, gas or water work.
This is general information only and is not professional advice. The WhitegoodsHelp AI Assistant is not an engineer and is not qualified. See our full Terms of Use.
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