Use ChatGPT Vision to Identify Unknown Parts and Diagnose Systems

Download the ChatGPT app from the App Store or Google Play if you don't have it. Sign in. Make sure you're on the GPT-4o model (tap the model name at the top to switch if needed).

What you should see: A chat interface with a camera icon or attachment icon in the text bar.

On the job, take a clear photo of the part you're trying to identify. For best results:

• Get close enough to fill the frame with the part
• Include any brand markings, model numbers, or stamped text in the shot
• If there's a handle, cartridge, or valve stem, photograph it next to the faucet body
• Good lighting — use your phone flashlight if working under a sink

In the ChatGPT app, tap the camera/attachment icon. Select your photo. Then type your question:

• "What is this part and what replaces it?"
• "This is a shower faucet cartridge. What brand is this and what's the replacement part number?"
• "What model of [brand] is this faucet? I need to order the correct repair kit."
• "Is this a gate valve or a ball valve, and can it be repaired or does it need replacing?"

Tap send.

What you should see: ChatGPT analyzes the image and responds with an identification, likely part numbers, and any installation notes within a few seconds.

The first response often gives you a starting point — follow up to get exactly what you need:

• "What other brands cross-reference to that cartridge?"
• "What tools do I need to remove it?"
• "Is there anything tricky about the installation I should know?"
• "Can I get this at Ferguson or do I need a specialty supplier?"

If you can't get a good photo (dark crawlspace, corroded markings), describe the part in detail:

"I have a single-handle shower faucet from approximately the late 1990s or early 2000s. The handle is lever-style, pulls straight out rather than turning. The cartridge is white plastic, about 3 inches long. There's a faint embossed mark that might say 'Price Pfister'. What cartridge do I need?"