Troubleshooting help
HVAC Symptom Guide
Choose the problem that feels closest. We will show the safest next check, likely causes, and when it makes more sense to call for service.
Step 1 of 4
What system are you having trouble with?
Choose the system first. If you are not sure, we will still guide you from there.
Request a diagnosis
If this feels urgent or safety-related, calling is the fastest option.
Selected issue
Issue selected: -- Urgency: --