Dell E23S Series owner manual Issues persists, contact support, Failed, Failures, TMP0121 Message

Error Code	Message Information
	Action	Re-configure system to the minimum supported configuration. If
		issues persists, contact support.
TMP0118	Message	The system inlet temperature is less than the lower warning
		threshold.
	LCD Message	System inlet temperature is outside of range.
	Details	Ambient air temperature is too cool.
	Action	Check the system operating environment.
TMP0119	Message	The system inlet temperature is less than the lower critical threshold.
	LCD Message	System inlet temperature is outside of range.
	Details	Ambient air temperature is too cool.
	Action	Check the system operating environment.
TMP0120	Message	The system inlet temperature is greater than the upper warning
		threshold.
	LCD Message	System inlet temperature is outside of range.
	Details	Ambient air temperature is too warm or one or more fans may have
		failed.
	Action	Check the system operating environment and review event log for fan
		failures.
TMP0121	Message	The system inlet temperature is greater than the upper critical
		threshold.
	LCD Message	System inlet <name> temperature is outside of range. Check Fans.
	Details	Ambient air temperature is too warm or one or more fans may have
		failed.
	Action	Check the system operating environment and review event log for fan
		failures.
VLT0204	Message	The system board <name> voltage is outside of the allowable range.
	LCD Message	System board voltage is outside of range.
	Details	System hardware detected an over voltage or under voltage
		condition.

If multiple voltage exceptions occur consecutively the system may power down in fail-safe mode.

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