Start with your location.

For a Miami service request, explain whether you live in a house or a condominium, where the air handler is located, and whether the building association must approve access or equipment work.

For a Dallas service request, say whether the air handler and ducts are in the attic and how the attic is reached. Mention whether a heat pump or a gas furnace provides winter heat.

For Phoenix homeowners, record how the system performs in the afternoon as well as earlier in the day. Tell the provider whether the issue affects the entire home or specific rooms.

For Columbus homeowners, specify whether you need help with cooling, a furnace or a heat pump. Note whether the problem began when switching between heating and cooling.

For a Nashville service request, say whether the home is a newer build, a townhome or an older house, and whether a heat pump provides the heat. Keep builder or warranty paperwork nearby.

For a Louisville service request, say whether the furnace or air handler sits in a basement, closet or attic. Note how humid the home feels in summer as well as the temperature.

For a Memphis service request, mention whether ductwork or equipment is in a crawlspace or attic. Describe the long cooling season in terms of what changed recently, not what the weather usually does.

For a Birmingham service request, describe the floor levels of the home and where the equipment sits. On a sloped lot, explain how a technician reaches a basement or crawlspace unit.

For a Huntsville service request, say whether the home has one system or separate upstairs and downstairs systems, and which thermostat controls the problem area.