Carrier Continuous on: Control has 24 VAC power

Source: Carrier manual (PDF) (opens in a new tab) ↗ · Updated

Status codeContinuous onCarrier
What does Carrier Continuous on mean?

Control has 24 VAC power: a steady amber LED is not a fault code.

How it shows: Amber status LED on a Carrier 59SC5 stays on, with no flashes

Likely causes

  • The furnace control has 24 VAC power and is not flashing a status code

How to fix Continuous on: safe DIY steps

  1. A steady amber light matches the label's continuous-on line. It means the control has 24 VAC. It does not name a failed part
  2. If the furnace still has no heat, watch for a flash code and look that number up. A technician is the next step when there is no heat and the light never flashes a code
Safety firstIf you smell gas, do not touch any electrical switch or use a phone in the building; leave immediately and call your gas supplier from outside. Turn off electrical power at the furnace switch or breaker before opening any panel, and never bypass or jumper a limit, rollout or pressure switch. Gas valve, burner, venting, wiring and control-board work should be done by a licensed HVAC technician.

Capacitors can hold a charge after the power is off. Safety terms.

When to call a pro

Call a licensed HVAC technician if there is no heat and the LED stays on without a flash code. Continuous on is the powered, no-code state. Rapid flashing is reversed polarity, which is a different pattern.

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