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$75 Diagnostic Fee Waived: Grok Bot Phoned the HVAC Company When Online Booking Broke and Got a Same-Day Visit

  • Level Beginner
  • Setup~30 min (estimated)
  • Evidence Some evidence
  • CostNot stated in source
  • No-codeYes
Grok BotSource-linkedBeginner-friendly

What they did

What happens when the booking page is broken and the house is too hot or cold? His Grok Bot called the HVAC company and booked a same-day visit, then confirmed it the next morning. When the tech pitched a $139 maintenance plan, the bot looked into it, checked the Lennox warranty rules and wrote him questions to ask. The tech waived the $75 diagnostic fee, all before lunch.

How it went

A booked repair visit, a confirmation, and questions ready for the tech's upsell.

Worth knowing

  • One person's X post. The fee waiver came from the tech, and the post doesn't say whether the bot's questions caused it. Some businesses won't deal with an AI caller.

Prompt

Cleaned version rewritten from the source — not a direct quote.

My [heating/AC] is broken. 1) Try to book the earliest repair with [company]. If online booking doesn't work, call them and book a same-day visit if possible. 2) Put it on my calendar and confirm with them the morning of. 3) If the tech offers a maintenance plan or repair quote, research it, check my equipment's warranty ([brand], installed [year]) and write me a short list of questions to ask before I agree to anything.

Recommended

Try it in Grok Bot

  1. Copy the prompt (button below).
  2. Open Grok Bot chat and paste it. Replace any [bracketed] placeholders.
  3. Connect the listed tools (Google Calendar) as connectors when Grok Bot asks.
  4. If the task repeats, ask: "Make this a daily routine."

Alternatives: the same prompt works in Claude, ChatGPT Agent, OpenClaw.

Set it up

Tools: Google Calendar · Stack: Grok Bot + phone calls + calendar + web research

  1. Read the original source for full context.
  2. Connect the tools your agent needs.
  3. Paste the prompt and replace [bracketed] placeholders.
  4. Run once manually and check the output before scheduling it.

Generic suggested steps, not from the source.

Evidence

First-hand X post: online booking broken, bot called and booked same day, confirmed next morning, researched $139 plan and Lennox warranty, $75 diagnostic waived. Nothing sold

Source: X · 2026-10-23 · Verified by us: not yet · Report broken or outdated

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