Didn't recognize the brand of incubator until I looked it up. Lots of people have had issues with that incubator made in China and branded under numerous names.
I think the biggest change from 11 years ago is the way the post office handles packages. Very few packages are handled by real people at the P.O. anymore. Everything is put on conveyor belts and dropped multiple feet multiple times into bins plus being X rayed. Not a good scenario for hatching...
As you probably know the Mexican Speckle is a color mutation of the Bobwhite. Bobwhites are very reluctant to hatch their own eggs in captivity. There are always exceptions. You'll probably get a better response if you post your question on the Quail forum on this site.
I have never seen a switch like that one. I have a newer model RX-2 that has a back up wafer thermostat and the switch looks nothing like that. It is a 3 wire but looks like your 2 wire. Are you sure they sent the right part?
I know of two other sources for parts for your incubator. I don't think either one will give you the California Law excuse.
www.cutlersupply.com
www.mcmurrayhatchery.com
Ok so you don't have the electronic thermostat. If your getting up to 115 degrees either you have a bad wafer or the snap switch (little rectangular brown/black box under the wafer) is sticking. Probably need to replace both. You can order at www.lyonusa.com
My first thought is the wire for heating got disconnected while installing the new fan. Did you find a fan similar to the old fan or is it one of the large computer type fans that the newer roll-X use?
Never seen a Dickey or GQF Spoortsman on sale. If your buying a GQF Sportsman buy directly from the manufacturer at www.gqfmfg.com
Personally I like the Dickey incubators better.
It's hard to get this incubator up that high. If you can get 65 percent you should be good unless your hatching duck eggs. You could add a damp sponge but there's not a good way to add water to it without opening the incubator. If you have it located in a room that is isolated you could add a...
Mine runs slightly cooler in the hatching tray (98) but I don't hatch in mine. A couple of thoughts:
Are you sure the thermometer you are using is accurate. Are you just checking the temperature in the hatching tray in one spot like close to the door?
Have you checked to make sure you don't...
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Ideally you use a separate incubator as a hatcher. That being said many people don't have that option. In that case you raise the humidity for a few days while a hatch is going on and then reduce the humidity back to normal incubation levels once the hatch is complete. Most people who do...
I own a Dickey. It's an excellent incubator. You will have differences in temperature in every cabinet incubator made. You will drive yourself crazy with numerous thermometers located at different levels. I know, I have done it. Just relax. If you are getting good hatches on time you are good to go.