Most powerful Diagnostic tool in the industry 

What's Wrong With Your HVAC?

Skip the guessing game. Our diagnostic engine maps your symptoms to probable failures, shows realistic costs, and routes you to a pre-armed specialist.

95%
Average Failure Prediction Accuracy
$0
Hidden Fees or Surprise Charges
2-4x
Higher First-Time Fix Rate
1
Symptoms
2
Details
3
Diagnosis

What are you experiencing?

Select all symptoms that apply. This helps us narrow down the probable cause.

Diagnostic Intelligence

How Our AI Diagnostic Engine Works

Powered by comprehensive HVAC failure data, environmental analysis, and predictive modeling to deliver accurate diagnostics

Equipment Coverage

Complete taxonomy across all residential HVAC systems

Split Systems & Heat Pumps
Gas Furnaces & Air Handlers
Packaged Units & Mini-Splits
Boilers & Geothermal

Subsystem Analysis

5 critical subsystems mapped to 40+ components

Refrigeration Circuit
Electrical System
Airflow System
Combustion System
Drainage & Moisture

Predictive Modeling

Leading vs lagging indicators for accuracy

Early Warning Signals
Confirmation Symptoms
Environmental Factors
Usage Pattern Analysis

Component Failure Intelligence Database

Compressor

Very High Criticality
$2,500-$6,000
Repair Range
Leading Indicators (Predictive)
Increased amperage Short cycling High superheat Excessive vibration
Lagging Indicators (Confirming)
No cooling/heating Breaker trips Burnt smell

Capacitor

High Criticality
$150-$450
Repair Range
Leading Indicators (Predictive)
Hard start Humming motor Slow fan spin
Lagging Indicators (Confirming)
Won't start Visible bulge

Evaporator Coil

High Criticality
$1,200-$3,000
Repair Range
Leading Indicators (Predictive)
Reduced capacity Higher humidity Ice formation
Lagging Indicators (Confirming)
No cooling Water damage

Blower Motor

Medium Criticality
$450-$1,500
Repair Range
Leading Indicators (Predictive)
Airflow decline Whining noise Grinding sounds
Lagging Indicators (Confirming)
No airflow System overheating

40+ components analyzed | 150+ failure modes tracked | 1000+ symptom patterns

Confidence Scoring Algorithm

1
Base Component Failure Probability
Historical failure rates for each component
2
Leading Indicator Matches
Weighted by prediction strength
3
Environmental & Usage Modifiers
Climate, age, maintenance history
4
Conflicting Indicator Deduction
Reduces confidence when symptoms don't align
0-100
Confidence Score Output

Probability Modifiers

Environmental Factors
Ambient Temperature
Humidity Levels
Coastal vs Desert
Dust Load
Usage Patterns
Runtime Hours
Cycling Frequency
Setpoint Delta
System Sizing
Maintenance History
Last Tune-up
Filter Changes
System Age
Brand History

Professional Diagnostic Disclaimer

This diagnostic tool provides probabilistic assessments based on reported symptoms and comprehensive historical HVAC failure data. While our AI engine analyzes 40+ components, 150+ failure modes, and environmental factors to deliver highly accurate predictions, final diagnosis requires on-site inspection and testing by a licensed HVAC professional. Use this tool to understand potential issues and prepare for service, but always rely on certified technicians for confirmation and repairs.