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error HP

Error Code Red LED flashes two times, once every second

Processor thermal protection activated: A fan may be blocked or not turning.

? What Causes This

Blocked fan or improper heat sink attachment

How to Fix It

Ensure that the computer air vents are unblocked and the processor cooling fan is plugged in and running. Contact an authorized reseller or service provider if issues persist.

Source: page 35 of the official manual

From the manual

Manual page 35 — HP error Red LED flashes two times, once every second

This error code appears in:

HP T630 Thin Client