If the oven is back together so to speak, disconnect the oven's power cord from the wall outlet and with the oven door open, place an Ohmmeter across the power cord plug's active and neutral pins and measure the resistance and then close the door and measure it again. If the meter shows a lower resistance reading with the door closed, most likely it is measuring the HV transformer primary winding in parallel with the LV transformer, so it could be a sticking power relay (RY2?) contact on the control board that is causing the fuse to blow.
+
If the oven is back together so to speak i.e. fuse replaced, disconnect the oven's power cord from the wall outlet and with the oven door open, place an Ohmmeter across the power cord plug's active and neutral pins and measure the resistance and then close the door and measure it again. If the meter shows a lower resistance reading with the door closed, most likely it is measuring the HV transformer primary winding in parallel with the LV transformer, so it could be a sticking power relay (RY2?) contact on the control board that is causing the fuse to blow.
This relay should only be operated to connect power to the HV transformer once the Start button has been pressed.
If it is the relay contacts that are the problem, you may be able to order a replacement relay, instead of the entire pcb, by checking for the relay model code which is usually printed on the relay case and then using that information to try and find a replacement. You will need to unsolder it from the board to do the repair.
Here's the [document|31614|mini manual] for the oven
It has the wiring diagram and also a troubleshooting flowchart that may help.
If the oven is back together so to speak, disconnect the oven's power cord from the wall outlet and with the oven door open, place an Ohmmeter across the power cord plug's active and neutral pins and measure the resistance and then close the door and measure it again. If the meter shows a lower resistance reading with the door closed, most likely it is measuring the HV transformer primary winding in parallel with the LV transformer, so it could be a sticking power relay (RY2?) contact on the control board that is causing the fuse to blow.
This relay should only be operated to connect power to the HV transformer once the Start button has been pressed.
-
If it is the relay that is the problem, you may be able to order a replacement relay, instead of the entire pcb, by checking for the relay model code which is usually printed on the relay case and then using that information to try and find a replacement. You will need to unsolder it from the board to do the repair.
+
If it is the relay contacts that are the problem, you may be able to order a replacement relay, instead of the entire pcb, by checking for the relay model code which is usually printed on the relay case and then using that information to try and find a replacement. You will need to unsolder it from the board to do the repair.
Here's the [document|31614|mini manual] for the oven
It has the wiring diagram and also a troubleshooting flowchart that may help.
If the oven is back together so to speak, disconnect the oven's power cord from the wall outlet and with the oven door open, place an Ohmmeter across the power cord plug's active and neutral pins and measure the resistance and then close the door and measure it again. If the meter shows a lower resistance reading most likely it is measuring the HV transformer primary winding in parallel with the LV transformer, so it could be a sticking power relay (RY2?) contact on the control board that is causing the fuse to blow.
+
If the oven is back together so to speak, disconnect the oven's power cord from the wall outlet and with the oven door open, place an Ohmmeter across the power cord plug's active and neutral pins and measure the resistance and then close the door and measure it again. If the meter shows a lower resistance reading with the door closed, most likely it is measuring the HV transformer primary winding in parallel with the LV transformer, so it could be a sticking power relay (RY2?) contact on the control board that is causing the fuse to blow.
This relay should only be operated to connect power to the HV transformer once the Start button has been pressed.
If it is the relay that is the problem, you may be able to order a replacement relay, instead of the entire pcb, by checking for the relay model code which is usually printed on the relay case and then using that information to try and find a replacement. You will need to unsolder it from the board to do the repair.
Here's the [document|31614|mini manual] for the oven
It has the wiring diagram and also a troubleshooting flowchart that may help.
If the oven is back together so to speak, disconnect the oven's power cord from the wall outlet and with the oven door open, place an Ohmmeter across the power cord plug's active and neutral pins and measure the resistance and then close the door and measure it again. If the meter shows a lower resistance reading most likely it is measuring the HV transformer primary winding so it could be a sticking power relay (RY2?) contact on the control board that is causing the fuse to blow.
+
If the oven is back together so to speak, disconnect the oven's power cord from the wall outlet and with the oven door open, place an Ohmmeter across the power cord plug's active and neutral pins and measure the resistance and then close the door and measure it again. If the meter shows a lower resistance reading most likely it is measuring the HV transformer primary winding in parallel with the LV transformer, so it could be a sticking power relay (RY2?) contact on the control board that is causing the fuse to blow.
This relay should only be operated to connect power to the HV transformer once the Start button has been pressed.
If it is the relay that is the problem, you may be able to order a replacement relay, instead of the entire pcb, by checking for the relay model code which is usually printed on the relay case and then using that information to try and find a replacement. You will need to unsolder it from the board to do the repair.
Here's the [document|31614|mini manual] for the oven
It has the wiring diagram and also a troubleshooting flowchart that may help.
If the oven is back together so to speak, disconnect the oven's power cord from the wall outlet and place an Ohmmeter across the power cord plug's active and neutral pins and measure the resistance and then close the door and measure it again. If the meter shows a lower resistance reading most likely it is measuring the HV transformer primary winding so it could be a sticking power relay (RY2?) contact on the control board that is causing the fuse to blow.
+
If the oven is back together so to speak, disconnect the oven's power cord from the wall outlet and with the oven door open, place an Ohmmeter across the power cord plug's active and neutral pins and measure the resistance and then close the door and measure it again. If the meter shows a lower resistance reading most likely it is measuring the HV transformer primary winding so it could be a sticking power relay (RY2?) contact on the control board that is causing the fuse to blow.
This relay should only be operated to connect power to the HV transformer once the Start button has been pressed.
If it is the relay that is the problem, you may be able to order a replacement relay, instead of the entire pcb, by checking for the relay model code which is usually printed on the relay case and then using that information to try and find a replacement. You will need to unsolder it from the board to do the repair.
Here's the [document|31614|mini manual] for the oven
It has the wiring diagram and also a troubleshooting flowchart that may help.
If the oven is back together so to speak, disconnect the oven's power cord from the wall outlet and place an Ohmmeter across the power cord plug's active and neutral pins and then close the door. If the meter shows a low resistance reading most likely it is measuring the HV transformer primary winding so it could be a sticking power relay (RY2?) contact on the control board that is causing the fuse to blow.
+
If the oven is back together so to speak, disconnect the oven's power cord from the wall outlet and place an Ohmmeter across the power cord plug's active and neutral pins and measure the resistance and then close the door and measure it again. If the meter shows a lower resistance reading most likely it is measuring the HV transformer primary winding so it could be a sticking power relay (RY2?) contact on the control board that is causing the fuse to blow.
This relay should only be operated to connect power to the HV transformer once the Start button has been pressed.
If it is the relay that is the problem, you may be able to order a replacement relay, instead of the entire pcb, by checking for the relay model code which is usually printed on the relay case and then using that information to try and find a replacement. You will need to unsolder it from the board to do the repair.
Here's the [document|31614|mini manual] for the oven
It has the wiring diagram and also a troubleshooting flowchart that may help.
Hi @rob1630
If the oven is back together so to speak, disconnect the oven's power cord from the wall outlet and place an Ohmmeter across the power cord plug's active and neutral pins and then close the door. If the meter shows a low resistance reading most likely it is measuring the HV transformer primary winding so it could be a sticking power relay (RY2?) contact on the control board that is causing the fuse to blow.
This relay should only be operated to connect power to the HV transformer once the Start button has been pressed.
If it is the relay that is the problem, you may be able to order a replacement relay, instead of the entire pcb, by checking for the relay model code which is usually printed on the relay case and then using that information to try and find a replacement. You will need to unsolder it from the board to do the repair.
Here's the [document|31614|mini manual] for the oven
It has the wiring diagram and also a troubleshooting flowchart that may help.