AC Not Cooling Basic Checklist - Free| 空调不够冷基础检查表 - 免费版

Free bilingual Chinese/English checklist for North American central AC systems that are not cooling enough. This guide helps homeowners, landlords, Airbnb hosts, offices, and small commercial users make safe first checks before calling for HVAC service. It covers thermostat settings, air filter checks, supply and return airflow, outdoor unit observations, indoor water/condensate clues, runtime and temperature notes, and what photos to prepare before contacting a technician.

中文补充说明：本资料适合北美中央空调 + Furnace / Air Handler 系统用户，帮助客户在“空调不够冷”时先做安全基础检查，并整理报修前信息。本资料不是 DIY 维修教程，不教拆电、补冷媒、跳线或绕过安全保护。

What is included:

·       Bilingual Chinese/English PDF guide

·       Homeowner first-check steps

·       Photo and equipment information checklist

·       Simple observation record table

·       Safety boundary reminders