025-37499-000 Furnace Flame Sensor, Fits York, Exact Fit, Replacement

Very easy to install, works great!

Worked perfectly in my furnace that was listed in the description. Just loosen the screw pull the old one out put the new one in tighten the screw and attach the electrical cable back on the top. Took off about 2 minutes. The HVAC guy wanted to charge me about 200 bucks. So yes, you can do this yourself, go for it.

I don't know what there is to say about a replacement part that functions properly, but it did just that. Replaced the old one and my furnace works normally again. If you are considering this and wondering what the symptom was: My furnace would start the inducer motor, the element would heat up, gas would be released and fire would happen, but since I had a faulty flame sensor the furnace essentially thought there was no flame and it was just releasing un-burned gas, it would cut the gas supply and the flame went out. It happened periodically with no error codes being thrown.

Agree with other reviews that this one is slightly shorter than the prior part. I have a York and the replacement part still worked well. For install, my York was challenging to access the flame sensor due to limited space and it was tucked back behind wiring and ended up getting a new tool to get to it.

Works well in a Bosch BGH96 furnace. My OEM sensor’s ceramic insulator was slightly larger in diameter so that fit wasn’t an issue. If your original insulator is smaller, you may have to drill the hole out a little. These various brand sensors all do the same thing, only three physical measurements really matter: 1. Screw mount hole distance to sensor hole 2. Length/shape of probe 3. Ceramic insulator diameter The OEM Bosch sensor is ridiculously expensive at $170, this one is a steal at $8!!

This little guy is your friend! The York furnace is about 30 years old and a real workhorse for a 1200 Sq. Ft. home. One day, it would cycle on for a few seconds and shut off. A peek into the inspection port showed '7 blink red LED' code = "ignition lockout after three attempts". Huh? Not being an HVAC tech, a quick online search pointed to three common failures. Heat Sensor, Blocked or Reduced air flow to the blower motor, or a bad ignitor. Well, since the furnace would actually light up for a few seconds, Amazon's great value on the heat sensor was an easy choice. UNPLUG POWER FROM THE FURNACE AND SHUT OFF THE GAS BEFORE YOU DO ANYTHING. Bought the ignitor for good measure, it's a good value. Blew out the coils that were already clean (change your filter frequently!). While doing the service, go ahead and use a welder torch tip cleaner to make sure the burner orifices are clear. If these directions don't fix your problem, you can still replace the circuit reset thingy. HVAC techs will tell you that parts have to be tested before replacement and that's fine if you like paying for a $350 service call + whatever else you'll be charged for 'parts'. Anyway, all you'll need is a small socket set for the sheet metal cabinet screws and a phillips head screwdriver. Be sure to check the circuit enclosure panel switch. If the panel is loose, the switch will release and cause your furnace to shut off. Read the manual, review the online expert procedures, take your time, follow all safety rules. You got this!

The ceramic part on this was a bit longer than the original, but the insertion depth is an exact match. The insertion depth (from the flange to the tip of the metal rod) is 2-5/32" (two inches and 5/32nds). The rod itself is 1-1/2" while the ceramic part under the flange (that gets inserted and is connected to the rod) is 21/32". Add the ceramic part and the rod and you get the 2-5/32". I've attached a picture of the sensor next to a ruler. For what it's worth, I had to buy one at the plumbing supply store because the tenants needed heat immediately - but the metal rod was about an inch longer than this one. So I cut the rod down with a hacksaw to match the insertion length of the original. It works great. So if you ordered the longer version on accident, just cut the rod down to the length of the original. As long as some part of the rod is in the flame, it'll work. I ordered this part on amazon for a spare because I have two identical York furnaces in a rental property. A few weeks later after replacing the flame sensor on one furnace, I went to the rental property to change the air filters and figured I'd swap out the existing flame sensor on the other furnace with this one from amazon. I'm keeping the original as a spare. This was about $5 cheaper on amazon vs. plumbing supply store, but it's way more convenient to order a spare on amazon - if you're not in a pinch and need it for an immediate repair.

This part worked fine in my furnace, replacing one that was worn and covered with a layer of combustion byproducts.