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Fisher & Paykel Dryer Fault 8 (Exhaust Sensor Over Temperature)

Fault 8 means the exhaust sensor has measured an over-temperature. F&P lists three things behind that in the manual itself: fire detection, an element short circuit, and low resistance in the element circuit. This is the counterpart to the under-temperature…

What Fault 8 Means

Fault 8 means the exhaust sensor has measured an over-temperature. F&P lists three things behind that in the manual itself: fire detection, an element short circuit, and low resistance in the element circuit. This is the counterpart to the under-temperature reading that produces Fault 9.

Common Causes of Fault 8

  • A heating element shorted or reading low resistance
  • Restricted exhaust airflow driving exhaust temperature up
  • An element that stays energised when it should switch off

🔧 One Safe Check You Can Try

Switch the dryer off at the breaker and stop using it until it has been checked. This is the one dryer code where F&P names fire detection among the causes, and it should be treated accordingly.

⚠ Why You Shouldn't Go Further Than That

  • Leave the dryer off at the breaker and unused until it has been inspected, because the manual names fire detection as one of the conditions this sensor is watching for.
  • The element circuit is at mains voltage and can remain live at its terminals until the supply is fully isolated.
  • Clearing an exhaust restriction is worthwhile but does not address an element that has shorted, and only one of the two is a safety matter.
  • Restricted venting is one of the recognized causes of dryer fires generally, so treating an over-temperature reading as a nuisance code is the wrong call.

Opening a panel to inspect or repair something yourself doesn't automatically cancel your manufacturer's warranty — but it can risk accidental damage, and some manufacturers do have specific service conditions. Check your product's warranty terms, or ask us, before deciding.

Other Dryer Error Codes

Still Seeing Fault 8?

Book a trained technician and get it diagnosed correctly the first time — no guesswork, no repeat visits.

FAQ

Fault 8 FAQ

Urgent. F&P lists fire detection among the reasons this sensor reports over temperature, so the dryer should be off at the breaker and left alone until a technician has been.

A blocked vent should be cleared regardless, but it will not fix a shorted element - and the technician needs to establish which you have before the dryer goes back into use.

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