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5 FlashesAmana

Amana 5 Flashes

Flame sensed with no call for heat — a short to ground in the flame sense circuit.

Source: Amana/Amana_2021F_InstallationGuide_HVAC_EN.pdf

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What does Amana 5 Flashes mean?

Five red flashes mean the control detected flame when there was no call for heat. As a safety response, the induced draft blower and circulation blower run continuously with no furnace operation. The fault almost always traces to a short to ground in the flame sense circuit or in the flame sensor wiring, which makes the control read flame that is not actually present.

Symptoms

  • Induced draft blower and circulation blower run continuously
  • No furnace operation
  • Integrated control module diagnostic LED flashes five red flashes
  • Control reports flame with no active heating cycle

Common causes

  • Flame sensed with no call for heat
  • Short to ground in the flame sense circuit
  • Short in the flame sensor wiring

Diagnostic steps

  1. 01

    Inspect the flame sense circuit

    Inspect the flame sense circuit and flame sensor wiring for a short to ground.

  2. 02

    Correct the short

    Correct the short at the flame sensor or in the flame sensor wiring so the control no longer reads false flame.

  3. 03

    Verify the sensor and wiring

    Confirm the flame sensor and its wiring are properly routed and not contacting ground after the repair.

  4. 04

    Power off before servicing

    Turn power off prior to repair before handling the flame sensor or its wiring.

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When to call a professional

A flame-sensed-with-no-call fault is a safety condition: the control believes gas may be burning when it should not be. If you cannot safely locate and correct a short to ground in the flame sense circuit, call a qualified servicer rather than running the furnace. Work only with power off, and do not defeat the control's safety response while diagnosing the wiring.

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Other Amana error codes

1 Flash

System lockout from too many failed ignition retries — the furnace could not establish or hold flame.

2 Flashes

Pressure switch circuit is closed when it should be open — the induced draft blower is not operating.

3 Flashes

Pressure switch circuit is not closing while the induced draft blower runs — restricted airflow or a faulty switch.

4 Flashes

Primary or auxiliary limit circuit is open — the furnace is overheating from insufficient airflow.

6 Flashes

Rollout limit open or the integrated control module fuse is blown — possible flame rollout.

7 Flashes

Flame sense microamp signal is low — a coated, oxidized, or misaligned flame sensor.

8 Flashes

Igniter relay fault — wiring, igniter, grounding, or control module problem.

9 Flashes

Twinning fault — twinned furnaces are not wired or relayed together correctly.

10 Flashes

Open fuse / no 24V power to the integrated control module — often from a voltage surge.

11 Flashes

Igniter open — broken igniter, bad wiring, or poor grounding.

12 Flashes

Inducer relay fault — inducer wiring, blockage, grounding, or control module problem.

Continuous Rapid Flash

Reversed polarity of 115V or 24V power to the furnace or control module.

View all Amana error codes →

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