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(())

(( )) Temperature Protection Indicator – Tool temperature too high or too low

Milwaukee · M18 Inflators

What does (()) mean?

The Temperature Protection Indicator lights up if the tool's internal temperature rises during extended use or constricted airflow. It can also appear if the battery is too cold in extremely low temperatures. This indicator helps prevent damage to the inflator.

Common Causes

  • Extended continuous use
  • Constricted airflow around the tool
  • Battery pack is too cold in low temperatures

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Allow the tool to cool down for at least 10 minutes before continuing operation.

  2. 2

    If operating in extremely low temperatures, warm up the battery pack.

  3. 3

    Ensure the tool's air vents are clear and not blocked to allow optimal airflow.

  4. 4

    To avoid overheating, use the tool for no more than 20 minutes continuously, then allow it to cool for 40 minutes.

Browse all codes in this manual (5)
Verified technical data. Last updated: April 2026

Related Faults

(triangle icon)(triangle icon) Overload Protection Indicator – Airflow constrictedInflator will not inflateInflator will not inflate – Current pressure is higher than target pressureNo full power operationTool does not start or operate at full power – Dirty battery contacts or tool issue
Source: Milwaukee M18 Inflators
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