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10 FlashesAmana

Amana 10 Flashes

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

Source: Amana/Amana_2021F_InstallationGuide_HVAC_EN.pdf

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What does Amana 10 Flashes mean?

Ten red flashes indicate an open fuse and no 24-volt power reaching the integrated control module, and the furnace is not operating. A high voltage surge can blow off the fuse, cutting low-voltage power to the control so it can no longer run the furnace until the fuse is replaced.

Symptoms

  • Furnace not operating
  • Integrated control module diagnostic LED flashes ten red flashes
  • No 24-volt power at the control module
  • Control fuse is open

Common causes

  • Open fuse on the integrated control module
  • No 24V power to the integrated control module
  • High voltage surge that blows off the fuse

Diagnostic steps

  1. 01

    Replace the fuse

    Replace the open fuse to restore 24-volt power to the integrated control module.

  2. 02

    Look for a surge source

    Determine whether a high voltage surge blew the fuse so the replacement does not immediately fail again.

  3. 03

    Confirm 24V is restored

    Verify the control module receives 24-volt power and resumes normal operation after the fuse is replaced.

  4. 04

    Power off before servicing

    Verify the line voltage supply is turned off before proceeding with corrections.

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When to call a professional

A fuse that blows once may only need replacing, but a repeatedly opening fuse points to a wiring short or surge that needs professional diagnosis. If the ten-flash code returns after replacing the fuse, or if you cannot safely verify line and low-voltage power, call a qualified servicer. Always confirm the line voltage supply is off before working inside the control area.

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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.

5 Flashes

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

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.

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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