The call I dread most isn't the one where a client's system is down. It's the one where they tell me it's been acting up for weeks. Drive-thru systems don't fail without warning — here's what to look for before it becomes an emergency.

Arizona summers don't just test your staff — they test your equipment. Headset batteries that seemed fine in March may not survive a July lunch rush. Outdoor components bake in triple-digit heat. And most of the drive-thru failures I see in summer were completely preventable. Here's your pre-summer checklist — go through it before June 1st.