System Diagnostics

Commercial RTU Diagnostics Made Manageable

Bring clarity to the roof. Diagnose economizers, phase monitors, and belt-drive blowers without getting lost in the wiring diagram.

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Built for Precision

Everything you need to diagnose with confidence and accuracy.

Economizer Optimization

Diagnose stuck dampers, faulty enthalpy sensors, and actuator binding in minutes.

Belt-Drive Blower Setup

Properly align sheaves, tension belts, and measure amperage to prevent motor overheating.

3-Phase Power Validation

Verify phase balance, detect single-phasing, and ensure contactor integrity under load.

The Three-Step Workflow

01

Select Configuration

Specify tonnage, voltage, and heating type (gas/electric) for relevant checklists.

02

Follow Commercial Workflow

Prioritized checks for safety circuits, freeze stats, and building automation inputs.

03

Verify System Performance

Confirm supply air temperature, static pressure, and economizer operation.

Get the App

Simple, Transparent Pricing

Built for independent experts.

Solo Plan

$15 /month

Billing: Perfect for trying it out with a small client base

  • AI-Powered Rapid Troubleshooting
  • 90-day searchable history
  • Professional PDF reports
  • Zero-Signal Offline Mode
  • 500K tokens per month

Strategic oversight & operations.

Insight Plan

$89 /month /technician

Billing: For leadership and owners

  • Everything in Team Plan
  • On-Demand Master Tech Consultation
  • Enterprise Operations Command Center
  • Operational trend reporting
  • Custom API & Workflow Integration
  • 4M tokens per month

Frequently Asked Questions

The economizer stays open when it's hot outside. How do I fix it?

This usually means a failed enthalpy sensor or a stuck actuator. We guide you through testing the sensor resistance and manual positioning.

I hear a squealing noise on startup. Is it the belt?

Likely. It could be a loose belt or a sheave alignment issue. Our guide helps you measure deflection and check for pulley wear.

The unit trips on high pressure but the condenser is clean. Why?

Check for non-condensables, condenser fan rotation (especially on 3-phase), or a restriction. We help isolate the cause systematically.