Pricing data updated July 2026

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Most looked-up codes this season

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4 FlashCall a pro soon

Limit circuit opened

Goodman · the high-limit switch opened

Flame-rollout safety lockout

Carrier · the limit or flame-rollout circuit is open

14Call a pro soon

Ignition lockout

Carrier · the furnace failed to ignite or prove flame in four attempts and entered ignition lockout

270Call a pro soon

No-flame retry lockout

Lennox · the furnace exceeded its maximum ignition retries without sensing flame and entered soft lockout

Manual-reset safety circuit open

Rheem · the manual-reset limit control circuit is open

3 FlashesCall a pro soon

Pressure Switch Error

Trane · the pressure switch circuit failed during the venting sequence

Repair cost guides

Furnace Ignitor Replacement

0.5–1 hrs typical labor

Limit Switch Replacement

1–2 hrs typical labor

Blower Motor Replacement

2–4 hrs typical labor

$450–$1200→

Control Board Replacement

1–2 hrs typical labor

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