What information should I enter for a diagnosis?
Describe what the equipment does, include readings and units, and start even without an error code.
Enter what you observed, rather than a cause you have not confirmed. You can start without equipment details or an error code.
- Add the brand and exact model if you can read them. A nameplate scan can save typing.
- Enter the code as shown on the equipment, if there is one.
- Describe the operating mode, what starts or stops, and how long it runs.
- Include measurements with units and any checks you have already made.
- Choose the system type that matches the equipment. Use Unknown if you are unsure, or Other when none fits.
Examples
| Too little detail | A useful observation |
|---|---|
| Furnace not working | Heat call starts the inducer and igniter. Burners light, then go out after 4 seconds. |
| AC not cooling | Cooling call is active. Indoor blower runs; outdoor fan and compressor do not start. |
| Unit keeps stopping | Heating runs for 7 minutes, then stops before reaching the setpoint. It restarts after cooling down. |
Timing helps choose checks; it does not prove which part failed. Confirm causes with measurements and the manufacturer’s instructions.
If you dictate the symptom, review the text for wrong numbers or units before submitting. Start a new diagnosis shows the entry steps.