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Susan Brown

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Viewing 15 posts - 1,351 through 1,365 (of 1,973 total)
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  • in reply to: TCR Microwave systems #18243
    Susan Brown
    Keymaster

      I think if you go on and read the next bullet point, it’s clearer. The capacitor and rectifier work together to approximately double the voltage. We don’t go into detail about how that happens, we just want you to have a functional understanding of how these components do what they do. FYI – It is called a Voltage Doubler Circuit in the industry. This happens because the rectifier prevents the capacitor from discharging every half cycle, which is how the charge is roughly doubled in the capacitor.

      in reply to: module 6 #18242
      Susan Brown
      Keymaster

        Hi Rodney,

        Heat can be used as a source of ignition, but not all heat will cause ignition. That’s why our answer “heat, oxygen, and fuel” is not correct.

        Yes, oxygen is necessary, but we’re talking about fuel ignition in residential gas appliances – oxygen will be present! (Maybe one day when there are appliances in space we’ll have to be more specific šŸ˜‰

        So, of the three answers we give you, “good fuel flow and ignition” is correct.

        in reply to: Cs7 unit 2 #18239
        Susan Brown
        Keymaster

          Not a waste! We’re always happy to help. This is a tricky one for many.

          in reply to: Cs7 unit 2 #18237
          Susan Brown
          Keymaster

            Yellow is correct, but not black. Are you looking at the “Hot Ind Lights” now? You’ve got yellow on the left (L1) side of the LF light. What is the color coming from L2?

            in reply to: Cs7 unit 2 #18235
            Susan Brown
            Keymaster

              No – that’s not it. That’s a light that comes on when any of the burners are hot. We’re looking for the light that is specifically for the left-front burner. There’s a set of 4 of these lights…

              in reply to: Cs7 unit 2 #18233
              Susan Brown
              Keymaster

                Hi Chase,

                This one can be a little tricky. First let’s make sure you’re looking at the correct load, because there are multiple lights. How is it labeled on the schematic?

                Susan Brown
                Keymaster

                  The Midterm question on the dryer is more about understanding voltage, current, and power in a circuit than it is about how to troubleshoot a dryer. Remember – the Midterm is right after the Basic Electricity module.

                  We tell you in the problem statement that the element has continuity, so you know it isn’t open.

                  We then want you to look at the measurements in Figure 1 and let us know what that tells you about voltage, current, and/or power in the circuit, and the general fault that is preventing the element from heating.

                  We show you 0 volts from L1-L2, across the element, but 120vac from each side of the element wrt a neutral point.

                  What does this tell you about what is (or isn’t) happening in the circuit to power the load?

                  in reply to: Washer Schematic #18217
                  Susan Brown
                  Keymaster

                    Good job, Mike. This shows that you have learned a lot of the principles that you need to know in order to decipher any schematic. You already know more than the majority of techs out there (we know – we have been dealing with them for years!). Our courses are about teaching principles and giving a few examples to help. As you go out there and apply these principles to the schematics you encounter (both in real life and online – in our webinars and YouTube videos), you’ll continue to grow in proficiency.

                    in reply to: module 6 unit 4 #18208
                    Susan Brown
                    Keymaster

                      Hi Ed,

                      Good question. The convection and bake elements are in parallel, not series. The configuration you see there for the red wire is called a daisy chain. It is helping to supply power to both elements, but is not causing them to be in series. You’ll often see daisy chains in the burner switches for an electric cooktop, as well.

                      And I’m glad that you know the convection element isn’t a switch! šŸ™‚

                      in reply to: midterm exam question #18150
                      Susan Brown
                      Keymaster

                        Yes, if the detector switch were open, then the main coil would be in series with the ignitor and booster, which are in parallel to each other. So – that would be a series-parallel configuration.

                        in reply to: Mod 3 Unit 11 Electrical Symbols Clarification #18123
                        Susan Brown
                        Keymaster

                          Hi Darren,

                          Could you please give me a little more detail? Which video, and at about what point in the video? Thanks!

                          in reply to: Pressure Sensor Switch and transducer #18107
                          Susan Brown
                          Keymaster

                            What we encourage you to do is think about what the function of a pressure switch or transducer is (also called a water level switch) and how it works.

                            If you understand how a part functions, then you can easily deduce what malfunctions you would expect to see caused by a defective pressure switch or transducer.

                            We cover this in the Water Fill Control Systems unit.

                            What do you think?

                            in reply to: Appliantology Log in Issue #18103
                            Susan Brown
                            Keymaster

                              Hi Dean,

                              Please use the Contact form at Appliantology for this so the proper Admin can help you.

                              http://appliantology.org/announcement/19-contact/

                              in reply to: Mod 3 Unit 11 Electrical Symbols Clarification #18078
                              Susan Brown
                              Keymaster

                                haha- PChem was over 30 years ago… would definitely be testing my memory!! Organic chemistry would be what would really make me cringe.

                                in reply to: Mod 3 Unit 11 Electrical Symbols Clarification #18075
                                Susan Brown
                                Keymaster

                                  Questions are good!

                                  The first one you mention has Fixed taps – this resistor offers two choices where you can get different resistances by connecting to one of those two taps (the vertical lines coming down off the resistor).

                                  The rheostat is adjustable. “Pot.” stands for potentiometer. The tap is adjustable (thus the arrow, rather than the lines like in the fixed one). (You could search for more info on those terms if you are curious, but that’s probably all you need to know for most appliance repair work.)

                                Viewing 15 posts - 1,351 through 1,365 (of 1,973 total)