Aurora Star Tech https://validator.w3.org/feed/docs/rss2.html HVAC Error Codes & Diagnostic Codes Tankless Water Heater No Hot Water: What to Check AC Running But Not Cooling: What to Check Heat Pump Not Heating or Blowing Cold Air Boiler Not Heating: What to Check Furnace Not Turning On: What to Check Furnace Blinking Light: What the Flash Codes Mean HVAC Specs & Setup Data Glow Brand Boiler Maintenance intervals Trane Furnace Clearance to combustibles Trane Return filter size – upflow and downflow Rinnai Wall Furnace: Switch the display between Fahrenheit and Celsius Rinnai Wall Furnace: Turn Set back (frost protection) on or off HVAC Troubleshooting Guides Rinnai Wall Furnace: Select remote thermostat mode (01) or control panel mode (02) Rinnai Wall Furnace: Select the gas code (gas type, altitude, vent length) Rinnai Wall Furnace: Set low and high fire gas pressure with the Test Switch Rinnai Tankless Water Heater: Turn controller key beeps on or off Rinnai Tankless Water Heater: Weak or missing flame signal (flame rod checks) Rinnai Wall Furnace: Lock or unlock the control panel Rinnai Tankless Water Heater: Show live flow and outlet temperature on the KCM controller Rinnai Tankless Water Heater: Show the last 9 stored codes (diagnostic history) Rinnai Tankless Water Heater: Start descaling (vinegar flush) mode on the PC board Rinnai Tankless Water Heater: Switch the controller between Celsius and Fahrenheit Rinnai Tankless Water Heater: Performance data readout (items 01 to 24) Rinnai Tankless Water Heater: Reset after cleaning the venturi or replacing the gas valve (codes 17 / 52) Rinnai Tankless Water Heater: Reset the Service Soon (SS) reminder Rinnai Tankless Water Heater: Lock or unlock the controller (key symbol) Rinnai Tankless Water Heater: Lock or unlock the KCM controller (LOC) Rinnai Tankless Water Heater: Checking PC board fuses and thermistors Rinnai Tankless Water Heater: Enter installer parameter mode (A button on the PC board) Rinnai Tankless Water Heater: First power-up setup: gas type and indoor/outdoor (RX/CX) Noritz Tankless Water Heater: Reset the panel settings to defaults (Default Settings) Noritz Tankless Water Heater: Set a temperature of 125 F (55 C) or higher Noritz Tankless Water Heater: Trial operation of parts (EZ Start Plus app) Noritz Tankless Water Heater: Read the error history Noritz Tankless Water Heater: Read the error history through maintenance monitors MM91-MM98 Noritz Tankless Water Heater: Recover a forgotten screen lock password Navien Tankless Water Heater: Set up a cascade (assign sub unit IDs) Noritz Tankless Water Heater: Check the recirculation mode (MM86) Noritz Tankless Water Heater: Read live data (Maintenance Monitor) Navien Tankless Water Heater: Run test mode (fan, flow valve, venturi, pump, mixing valve) Navien Tankless Water Heater: Set the altitude setting Navien Tankless Water Heater: Set up a cascade (assign main and sub units) Navien Tankless Water Heater: Read live data (Status Information menu) Navien Tankless Water Heater: Read the error history Navien Tankless Water Heater: Remove a cascade (Cascade System Removal) Navien Tankless Water Heater: Reset one parameter to its default Fast, Reliable Heating and Cooling Repair You Can Trust Blog