David S. Verified Buyer
Verified BuyerMichigan
12/21/25
12/21/25
Repair Clinic is a good source for OEM parts for furnace, washer and dryer. I recently decided that it would be a good idea to replace all the parts in my 18 year old furnace that are likely to fail in the near future (and keep the old parts as backup) to avoid an emergency visit from our friendly HVAC guy (with 4 figure bill or recommendation for a new furnace). So I watched a bunch of videos on the most common parts that go bad on gas furnaces. I replaced the: flame sensor (most common problem), igniter, capacitor, pressure switch, and thermostat. I also cleaned the inshot burners (with wire brush), vacuumed out the inside of the furnace, including in the heat exchanger, cleaned the A/C evaporator A-Coil and it's drain lines, took out the furnace condensation (it is high efficiency furnace) trap and cleaned that thouroughly, along with its drain lines (I just poured vinegar down drain lines to free up any goop buildup). I think the furnace is now in a much better position to weather the next few seasons without a breakdown, and I've learned enough in the process that I don't think I'll need to have an HVAC guy come out for the routine "tune-up" in the future, I'll just do it myself. I've always worked on my own cars, but never touched the furnace in the past (other than filter). Now I realize that furnace work is a walk in the park compared to cars.