Upgraded Replacement for Goodman Furnace Control Circuit Board B18099-13

Came on time, installed without issues, avoided having to pay an upwards of thousands of dollars to repair, love the price, my heat works amazing again 😀!

Easy to replace. Well worth the money. Worked very well this past winter.

3-16-20I'm reviewing the updated Goodman Heater Control Board replacement for the older B18099-13 version. This control board is for a Forced Air Goodman Furnace fueled by Natural Gas. Model # GMT090-3B and Serial # 0405208819. You can view the supplied photos for more info.The reason I decided to go with this control board, was I did find a failure of one of the relays on the old board specifically. I'd like to start out by saying, I am no HVAC expert but have serviced many heaters and AC units in the past. I am a Jill of all trades with mainly being the best or most well versed in automotive. I would say don't attempt this type of work, to anyone who isn't knowledgeable enough in the field of electrical or HVAC. My friend had asked me to give him an opinion and to see if I could repair this unit. I told him I'd give it a shot, but if uncomfortable at all, I'd let him know and I'd pass. I brought some basic tools with me for the diag... Fluke meter, Inductive Ammeter, noncontact voltage pen, multifunction electrical pliers, electrical tape, and multitipped driver.How did I diagnose this particular unit or issue?1. I first went over the electrical schematics which were printed on the cover and I searched online for a unit specific PDF, just to get acquainted with this particular unit.2. I then wanted to verify the customer complaint. In this case, he would turn on the unit fro mthe thermostat. You could hear a blower activate for several seconds, and then it would all shut off. No codes given on the thermostat or control board (via LED). This allows me to pinpoint my focus. If I hear a blower engage in the basement, once the thermostat sends the signal, this will automatically eliminate a thermostat failure.3. Once I determined it's a furnace issue, I checked a few of the basics. Ignitor, Rollout Switches, Thermal Switch in the blower body, and wiring connections using a meter and the noncontact voltage pen. I allowed the unit to run the failed sequence a few times, to determine which part of the sequence was failing.4. Each unit has a sequence. Each step must be completed before going on to the next phase. For example...A. exhaust blower on, B. then Ignitor activation, C. gas valve opens, D. flame sensor "sees" flame, E. ignitor shuts off, F. Blower activates etc.... (steps may not be in correct order, just an example).In this case, gas valve was not opening nor was the ignitor lighting. The only step functioning was the exhaust blower activating... no power was being sent to the ignitor. Even checking direct output to ignitor on the board, there was zero output. I could, however, feel the corresponding relay click, so the control side was working. This is why the control board was not flashing any Trouble Codes. Most Control Boards only monitor the control side of a circuit, not the output.Regarding the board itself, the replacement I purchased, I have had zero issues. The old one was original (made in 1999) and had no issues until now, which I think is quite remarkable considering most modern electronics have a shelf life of 10 years or so. The replacement was a direct fit, including never even had to change the main square connector to the board. It was merely switching wires from 1 board to the new one, just be aware of where the wires go. That they are the correct components... blower or ignitor, etc. Easy to mix up if not paying attention.The biggest difference I've seen from old board to new, is the added amount of resistors and maybe more and bigger Integrated Circuits. There doesn't seem to be any difference in the way the unit functions. It's now been 2 months since install and all has been working as it should.I did make a video on further diagnosing and demonstrating the failure of the OLD control board. I have an automotive YT channel, and thought this applied to electronics used in vehicles and equipment. I wish I would have had the time to do a video on the initial diagnosis and replacement, but time was of the essence and I was working by myself (no camera help).https://youtu.be/xFuwsuKw38YI bought this from the seller "North America HVAC" but fulfilled by Amazon, which I feel is important to list this info. I've come across sellers with variances in their items, including knockoffs, even if listed as same brand. I'll post an update with a durability review.

I'm not a furnace technician but I'll do the best that I can to describe why I bought this and how it's working for me.The Furnace Control circuit board went out on my Goodman furnace. More to the point, it started malfunctioning. Whenever it was time for the flames to kick on, it wouldn't. Well, sometimes it would and sometimes it wouldn't. I got really tired of cold air blowing out.I placed several (expensive) service calls over the last 4 years as each tech tried to figure out what was wrong with my system. Almost every other part in the system had been replaced (at great cost). This one was the only one left. My tech said it was showing 24 volts to the gas valve like it's supposed to. But, for some reason, when it was time for the gas valve to open, the voltage dropped to zero.My original board was manufactured in 1999. That makes it 16 years old (at the time of this writing). Instead of going for the 1999 model replacement, I opted for this upgraded model. There is very little difference when you eyeball this board against the old one (which is also available on Amazon). I figured they changed a few parts for a reason though, so I opted to order this upgraded replacement version.I'm glad I did. The new board came in 2 days. My tech swapped out the board in about 20 minutes. He said he didn't have to do anything special for this upgraded board to be installed. The system is now working as it should! Yay! I can now put away the space heaters that we had to rely on for heat.I did pay a little extra for faster shipping. My tech was with me when we ordered this part. We had the older model on one monitor and this upgraded one on the other monitor so we could compare them side-by-side. My tech was amazed at the low price here on Amazon. His local distributor wanted to charge him twice as much (which would have cost me twice as much).I had also just replaced the gas valve (which I also got from here on Amazon at a much lower price than the distributor wanted to charge). I am so thankful this kind of stuff is available on Amazon. I think the company my tech works for is going to start buying some of the parts through Amazon!

This circuit board has been installed for about seven months. The heating and cooling works. However, the re-circulation fan function is not available. So to have a fan on you must have a heat or AC mode on. I guess its a minor inconvenience. The replacement is straight forward for those that are mechanically inclined. I used my cell phone to take a picture of the old board connections and the new board had the same connections in the same places. The most difficult part of the installation is getting access to the board. Mine was in the attic and a pain to get to.

Holy Sh!t. The past 3 years of furnace issues solved in 30 minutes. I had an inclination it was the board (old Goodman gmp50-03.) a few months ago I had no idea what make, model, or year this thing was. (Found a nameplate under it) All I knew was it would turn off and on within seconds. It was not the igniter, flame sensor, thermostat, thermostat wiring, blocked flue pipe, fan limit switches, pressure switch. It was a relay in the control board as I, the home owner, suspected. Changed this out and my 27 year old furnace is still going. 1/5/2020 I’m relaxing now instead of listening to the furnace malfunctioning.Worried it was the heat exchanger, looks like this was the problem. The thermostat is not mounted in an ideal situation, but things are running fine. Finally. You don’t know, or maybe you do, the stress I was under. If your Goodman/ janitrol is doing on/off.. on..off. on.off.on. Try this.

Fast shipping which was good because it was November. It's been in a few weeks and working good.

Item arrived on time, fits perfectly and works as it should. Very happy with the product!