How to verify an aircon diagnosis before paying for major work

You do not need to be a technician to pressure-test a recommendation. You only need a clear framework for evidence, scope, and decision handoff.

Primary question

How can I tell whether a diagnosis is evidence-based or just a guess?

Three questions that surface quality fast

If these answers are vague, the recommendation is likely not defensible yet.

  • What was tested, measured, or directly observed?
  • What alternative causes were ruled out?
  • What one next step do you recommend now, and why now?

Signals that decision risk is being transferred back to you

These signals are common in high-uncertainty situations where customers are expected to guess.

  • Menu-style option dumping without recommendation
  • Escalating scope without new evidence
  • Urgency pressure without clear technical reason

What good handoff sounds like

A good handoff is explicit: one bounded next step, clear reason, pricing status, and your right to pause.

This keeps ownership clear: provider owns assessment and advice, customer owns the final decision.

Need help with your own unit?

Tell us what is happening. We will assess first, advise one clear next step, and you decide.

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