DISCLAIMER: These video presentations are not intended to be all-inclusive instructional videos nor offer advice on appliance repair. They merely illustrate the process. These videos take a lot for granted such as, but not limited to, safety around electrical devices, proper choice and use of hand tools, techniques to ensure personal safety, protection of property, fire safety, and more. By viewing. listening to, or watching this or any other video on the Hottop USA website you assume all responsibility and release Hottop USA and all its employees and contractors from any and all liability. If you do not accept these terms and/or your local laws prohibit such a release of liability, you may not watch or use the information in these videos.
WARNING This test involves operating the roaster with the rear cover removed and the fan exposed. This exposes you to potentially dangerous voltage and the potential for injury from moving fan blades. PROCEED AT YOUR OWN RISK! If in doubt, contact Hottop USA to arrange repair services.
The jumper wire inserted into the data cable at the control panel end of that cable temporarily functions in place of the control panel. It is just like turning on the main fan during a roast. The jumper wire conducts voltage to the main board to power the fans. Both the main fan and the bean cooling fan are powered at the same time, from the same connection on the main board. If one operates and the other doesn't, it is likely that the fan not operating is either not properly connected or the fan itself is bad. If connecting the jumper does not cause both fans to operate, the problem could be one of the following (in order of likelihood):