Warml

Daikin Furnace Error Codes

Daikin gas furnaces sold in North America share Goodman/Amana integrated furnace control diagnostics. LED flash counts or E-codes on 7-segment display (same platform as Goodman/Amana)

Most searched Daikin codes: 4 Flash, E0, and E3.

E0

Excessive retries or recycles

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E1

Pressure switch was closed at the wrong time

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E2

Pressure-switch circuit did not close

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E3

Limit circuit opened

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E4

Flame detected when the gas valve should be off

Emergency
E5

Low-voltage fuse is open

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E6

Low flame-sensor signal

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E7

Igniter circuit fault

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1 Flash

Ignition or flame-proving failure

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2 Flash

Pressure switch was closed at the wrong time

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3 Flash

Pressure-switch circuit did not close

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4 Flash

Limit circuit opened

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5 Flash

Flame detected when the gas valve should be off

Emergency
6 Flash

Flame-rollout safety lockout

Emergency
7 Flash

Low flame-sensor signal

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8 Flash

Igniter circuit fault

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