Troubleshooting
If you are having issues with your Velit Cooling or Heating product here are self-help resources for you.
Heater Troubleshooting
- Fuel Filter Installation Considerations for Gas or Diesel Air Heaters
- Velit Air Heater Glow Plugs - All you need to know about them
- Extending Velit Air Heater Power Wires to Reach Battery
- Why does my Velit air heater controller say "Fuel Pump OFF" "Wait...."
- Gas Smell from Velit Air Heater
- Velit Air Heater Installation Check-list
- How to Clean a Velit Gas or Diesel Air Heater
- Error 07 - Velit Air Heater Fuel Pump Error
- Velit Gasoline Diesel Air Heater Error Code Guide
- What is the expected operating surface temperature of the air heater mounting plate and exhaust?
- Troubleshooting Fuel Line / Fuel Delivery Issues with Velit Gasoline / Diesel Air Heaters
- Understanding ECU Firmware Versions for Velit Gas / Diesel Air Heater
- How to check firmware versions on Velit air heater
- Why does my fuel pump only show 8 or 9 volts at the power connection?
- Should I update the firmware on my heater?
- Check Harness & ECU for Electrical Issues
- Why is my brand new heater giving me Error 01 or Error 02 codes?
- How come I can’t clear error codes without resetting the power/fuse to my heater?
A/C Troubleshooting
- How to replace broken rooftop AC cold air directional output vents
- 2000R Blower Fan Replacement
- Velit Rooftop AC Brushless EB Error: Controller lack-phase
- Does my Velit Rooftop AC unit have a Brushed or Brushless evaporator fan?
- Velit 2000U EF or E8 Error Due to Fan Rubbing
- Diagnosing Velit AC Not Blowing Cold
- 2000R Water Intrusion Fix for EF Error
- Velit 2000R Controller Replacement