CEMCO provides fault diagnosis, repairs, servicing and preventative maintenance for Rational combi ovens used in restaurants, hotels, pubs, care homes and other commercial kitchens.
If your Rational oven has stopped heating, is showing a fault code, has steam or water problems, will not complete a cooking cycle, or is simply not performing as it should, our engineers can help diagnose the cause and advise on the repair.
Rational combi ovens are central to many busy commercial kitchens. When one develops a fault, the disruption can affect an entire service. CEMCO supports commercial kitchens with practical fault diagnosis and repair for Rational combi ovens, including planned servicing to help reduce unexpected breakdowns.
We work with kitchen teams to identify the fault, check the relevant components and controls, and explain the repair options clearly before unnecessary parts are replaced.
Oven not reaching temperature, slow heat-up, uneven cooking, fan or heating faults, or cooking programmes stopping unexpectedly.
Steam-generation problems, water supply faults, drainage issues, leaks, scale-related problems and poor cleaning performance.
Fault messages, sensor faults, control-panel problems and unexplained shutdowns. A fault code is a starting point for diagnosis rather than a reason to replace parts blindly.
Rational display messages and service codes can vary by model. Record the complete message exactly as shown before contacting us. The guide below covers some common messages and safe operator checks; it does not replace diagnosis by a qualified engineer.

Regular servicing can help identify worn components, scale build-up, water or drainage problems and developing electrical faults before they result in a full breakdown.
CEMCO can include Rational combi ovens within planned commercial catering equipment maintenance visits alongside other kitchen equipment, helping businesses keep maintenance simpler and more predictable.

Our engineers cover Dorset, Hampshire, Wiltshire and Somerset, including Bournemouth, Poole, Christchurch, Southampton, Salisbury, Weymouth and surrounding areas. Same-day and next-day call-outs are available in many areas subject to engineer availability.
Yes. CEMCO provides fault diagnosis, repairs and servicing for Rational combi ovens used in commercial kitchens across our service area.
Yes. Fault codes and on-screen messages can help narrow down the cause of a problem. The engineer will use the information together with checks on the oven before recommending a repair.
Yes. Rational ovens can be included in planned catering-equipment servicing and preventative-maintenance visits.
Use our booking form or call CEMCO on 01202 377205. If possible, have the oven model details and any fault message or code available when you contact us.
Complete our form and a member of our team will be in touch.