Unexpected shutdowns can come from protection behavior, control instability, or power conditions. The first move is to classify when shutdown happens and what resets it.
Primary question
My aircon keeps turning off on its own. What should be checked before I approve major work?
Timing pattern is the fastest way to separate likely failure paths before discussing parts.
Good diagnosis should rule out reversible causes before costly replacements.
Get help quickly if shutdowns continue after recent service, or if the proposed fix suddenly jumps in cost.
That usually means the root cause is still unclear and needs a proper full check.
Practical checks for aircon units that run but do not cool, including common causes and when to seek help.
A practical guide to indoor aircon leaks, common causes, and when to seek urgent help.
Understand startup smell patterns, what they can indicate, and when to get help beyond normal cleaning.
Tell us what is happening. We will assess first, advise one clear next step, and you decide.
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