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Manufacturer diagnostic code

Back to all Tempstar N96MSN0601716A*D codes

Tempstar N96MSN0601716A*D 45.1 troubleshooting

Control failure - flame circuit fault, memory mismatch or sequence error. Document the displayed code and operating conditions before scheduling service.

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What this code means

The furnace control reports an internal flame-circuit, memory, or operating-sequence fault.

Code
45.1
System area
Furnace control board
Priority
Urgent
Applicable code set
Tempstar N96MSN furnace status codes (revision 03)

Safe checks

  • Confirm the thermostat is on, set correctly, and calling for heating or cooling.
  • Check the air filter and visible return-air path for obvious airflow restrictions.
  • Record the displayed code or flash sequence before scheduling service.

First step

Record the code, avoid repeated reset attempts, and schedule GreenFlow service.

Frequently asked questions

What does 45.1 mean on a Tempstar N96MSN0601716A*D?

The furnace control reports an internal flame-circuit, memory, or operating-sequence fault.

What should I safely check before scheduling service?

Use only the visible, non-invasive checks listed on this page. Do not open equipment panels.

When should GreenFlow handle this code?

Call GreenFlow if the code repeats, the equipment is locked out, heating or cooling is not restored, or the condition involves gas, ignition, pressure, wiring, a motor, or a control board.

Manufacturer source document