Aurora Star Tech https://validator.w3.org/feed/docs/rss2.html HVAC Error Codes & Diagnostic Codes Gas Fireplace Won’t Light or Stay Lit 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 Troubleshooting Guides Generic Refrigeration: Where is the high-side restriction? Generic Refrigeration: Where leaks hide Generic Refrigeration: Wax-free synthetics have no floc point Generic Refrigeration: Wet insulation signs Generic Refrigeration: Wax vs ice in cap tube Generic Refrigeration: Water line access for ice maker/humidifier Generic Refrigeration: Wattmeter shows a bad start circuit Generic Refrigeration: Warm the whole system evenly during evacuation (heat lamps / room heat, never torch) Generic Refrigeration: Water defrost must drain fully Generic Refrigeration: Vacuum stalls at ~5000 microns = water or ice in the system Generic Refrigeration: Valve adapter use Generic Refrigeration: Walk-in door latch Generic Refrigeration: Use a fixed wrench, not a ratchet, to crack a stuck valve Generic Refrigeration: Use time-termination as backup only Generic Refrigeration: Uninsulated suction line costs you Generic Refrigeration: Trend insulation readings Generic Refrigeration: Two-pole motor test limit Generic Refrigeration: TXV frost pattern shows charge Generic Refrigeration: Three-phase internal overload Generic Refrigeration: Three-way solenoid on the TXV equalizer Generic Refrigeration: Tiny leaks matter Generic Refrigeration: Temperature survey finds restrictions Generic Refrigeration: Thaw a frozen TXV without opening the system Generic Refrigeration: Thermostat bypass test Generic Refrigeration: Stat capillary handling Generic Refrigeration: Suction filter-drier causing pressure drop should come out Generic Refrigeration: Start-up checklist Generic Refrigeration: Starting a multi-evaporator system on a hot pull-down Generic Refrigeration: Starved vs flooded evaporator from the TXV Generic Refrigeration: Split-phase & PSC need balanced pressures Generic Refrigeration: Standing vacuum test for leaks Generic Refrigeration: Slope the suction line toward the compressor Generic Refrigeration: Snap-action EPR Generic Refrigeration: Split condenser (summer / summer-winter) Generic Refrigeration: Sight glass goes after the drier Generic Refrigeration: Sight glass on big liquid lines Generic Refrigeration: SLHX protects compressor and prevents sweat-back Generic Refrigeration: Short-cycling: find the control first Generic Refrigeration: Shorted winding sound Generic Refrigeration: Sight glass bubbles on cap-tube systems don’t mean low charge Fast, Reliable Heating and Cooling Repair You Can Trust Blog