HVAC Distributors’ Technical Support team is trained on all of our in-stock products. Instead of calling several manufacturers, our customers can call one phone number and get questions resolved quickly.
Contact Tech Support (HVAC Distributors customers only)
- Phone: 800.228.4822 ext. 5
- If you are calling regarding a current issue, please make sure that you are on-site and are ready to provide the equipment information requested in the AC/HP Critical Readings Survey.
- Email: techservice@hvacdist.com
- Email is best when you have technical questions about upcoming projects.
Current Service Bulletins
Current Service Bulletins are available through our Product & Service News. Click here for our Service Bulletins category.
- Lochinvar Recall Information
- AprilAire 800 Series Steam Humidifier Electrode Wire Replacement Product Safety Notice
- Daikin Fit and Amana S-Series 1-1/2- to 3-Ton Heat Pumps – Missing Knockout for Drain Pan Heater Wiring Harness
- TSB C-GN-SP-0049 REV1 REVISION Daikin FIT Amana Brand S-series and Goodman SD Software Update
Tech Service Forms
Unitary
- Residential Start-Up Form
- Test Data Sheet
- Furnace Data Survey
- AC/HP Critical Readings Survey
- Product Quality Report
- Dip Switch Chart
- Daikin VRV Compressor Changeout Procedure
- ComfortNet Data Line Voltage Troubleshooting & Bias Switches
- CoolCloud HVAC App Technical Guide for the ComfortBridge Control Platform
- Amana Brand Smart Thermostat – Commissioning Menu Outline
- Amana Brand Smart Thermostat – Homeowner Settings
- Amana Brand Smart Thermostat – Installation and Commissioning Guide
- Amana Brand Smart Thermostat – Unitary Error Codes
- Amana Brand Smart Thermostat – End User Navigation & Mobile App
Goodman SD
- Goodman Side Discharge FAQ
- Daikin D-Checker
- Goodman GTST Connected Thermostat Homeowner Settings Menu Outline
- Goodman GTST Connected Thermostat Installer Menu Outline
- Goodman GTST Connected Thermostat Installation & Commissioning Guide
- D24V Gateway Adaptor
- EWC UT-3000 Zone Control Board
- Furnace Firmware update with CoolCloud
- Goodman GTST Thermostat Wiring
- Goodman GTST Connected Thermostat SpecsGoodman GTST Initial Setup
- Goodman SD Configurations
- Goodman SD IOM
- Goodman SD Overview
- Goodman GTSD Initial Setup (Video)
- Goodman GTSD Thermostat – Edit Settings (Video)
- D24V Gateway Overview (Video)
Geothermal
- ClimateMaster Geothermal Commissioning Worksheet
- ClimateMaster Refrigeration Troubleshooting Form (packaged systems)
- ClimateMaster Refrigeration Troubleshooting Form (split systems)
- ClimateMaster Tranquility® Digital (DXM2) Troubleshooting Guide
EWC