Refrigeration Fault Diagnosis Quiz
Good fault diagnosis is about reading the evidence before reaching for an answer. The RDA Academy Fault Quiz gives working refrigeration engineers a practical way to test their diagnostic thinking and identify areas worth revisiting. Work through refrigeration fault scenarios and decide what the information is telling you before choosing your answer.
It is designed for engineers working in supermarket, retail and commercial refrigeration who want to practise fault-finding away from the pressure of a live call-out. Use it to challenge your own approach, refresh your knowledge or simply see how you get on. This is a training and practice tool, not a formal qualification or assessment. Start the quiz, work through the questions and see where your diagnostic reasoning takes you.
Also try: practise superheat and subcooling · practise P–T chart lookups · use our free subcooling calculator
What you’ll practise
- Reading air-on, air-off, coil and defrost patterns on a case trend
- Naming the fault from the graph, not from a site visit
- Spotting iced evaporators, probe faults, slow leaks / EEV starvation, and normal defrost recoveries
Keep practising
Go further with RDA training
When you’re ready, Level 1, Level 2 and Level 3 cover commercial refrigeration diagnostics and graph reading in depth. Each level ends with an RDA certificate of completion. See the levels on the homepage. Prices from the live site apply — we don’t invent figures here.