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Priority Indicator

Priority Status — Indicates system priority status

Rheem · Tankless Water Heaters

What does Priority Indicator mean?

The 'Priority Indicator' light provides information about the operational priority of the water heater within a system, if applicable. Consult specific system documentation for detailed meaning.

Common Causes

  • Specific system configuration or demand.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check if this is a multi-unit installation.

  2. 2

    Refer to advanced installation or system integration manuals.

  3. 3

    Ensure power is supplied to the unit.

Browse all codes in this manual (24)
Verified technical data. Last updated: April 2026

Related Faults

88Error 88 — Maintenance required before clearing codeAlarm/Error IndicatorSystem Alert — An issue has been detectedDANGER: Shock HazardDANGER: Shock Hazard — Electrical power is present
Source: Rheem Tankless Water Heaters
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