Haier Dryer Error Code F5

The F5 code on a Haier dryer indicates that the hi-limit thermostat or its associated wiring has been detected as damaged or faulty. The hi-limit thermostat is a safety device that prevents the dryer from overheating. When the control board cannot read a proper signal from this component, it stops operation and displays F5. The dryer will not resume normal function until the thermostat or wiring is inspected and repaired.

No, you should not attempt to continue using the dryer while F5 is active. The hi-limit thermostat is a core safety component that prevents dangerous overheating. Operating the dryer with a faulty or bypassed thermostat creates a risk of fire or damage to other internal components. The dryer should remain out of service until the fault is properly repaired.

Repair costs vary depending on what is found during diagnosis. A replacement hi-limit thermostat part typically costs in the range of $10 to $40. If professional labor is needed, total repair costs including parts and service time generally fall in the range of $80 to $200, depending on your location and the extent of wiring damage involved.

A knowledgeable DIYer can perform basic diagnostics such as inspecting the wiring and testing the thermostat for continuity with a multimeter. If the thermostat has failed, replacing it is a relatively straightforward repair once the correct replacement part is sourced. However, if the wiring harness or control board connections are involved, the repair may require more technical comfort with appliance electronics.

A reset may temporarily clear the F5 code, but it will return if the underlying fault in the hi-limit thermostat or wiring is not addressed. Simply resetting the appliance does not repair a failed thermostat or damaged wire. The root cause must be diagnosed and corrected for the error to be resolved permanently.