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I have a Dacor oven in a rental unit. It intermittantly turns on the fan and shows an F4 fault for a few minutes, then goes off. This may happen 4 times a night, then not happen at all for many days
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F4 means there is an open circuit in the Oven Temperature Sensor. Could be a bad sensor that needs replacing, cound be an issue with the wiring harness.
A test would be to short the sensor wire together at the sensor. the error code should change to F3. then you would know it is the sensor and not the harness.
F4 means there is an open circuit in the Oven Temperature Sensor. Could be a bad sensor that needs replacing, cound be an issue with the wiring harness.
A test would be to short the sensor wire together at the sensor. the error code should change to F3. then you would know it is the sensor and not the harness.
Hi. I recommend Checking the sensor wiring harness and harness connection between the oven sensor and oven control.
Replace the oven temperature sensor (RTD) if wiring is ok.
Question: does the unit appear to hold the correct temperature? Most convection units only turn the heating elements on and off...not the fan. If the unit is reporting operating temp and then taking other direction...and it is cooking right...you're done.
Mewood
What part did you call "thermostat"? If you?re talking about the device which operates the oven temperature, your oven does not have such thermostats. It has two oven temperature sensors (one in each oven) and a control board (ERC). An error code "F4" will be displayed along with a beeping sound if the ERC determines an open oven temperature sensor circuit. It can be the sensor itself or the wires that connect the sensor to the ERC. The F4 message will not be displayed in the time of day mode. To get access to an oven sensor and wires, the oven has to be removed from the cabinet. Then you have to remove the rear cover. Then unplug the oven sensor and check the resistance across the oven sensor. It?s supposed to be about 1100 ohms at room temperature. If the resistance is incorrect, the sensor is bad and needs to be replaced. If not, check all the wires from the oven sensor to the ERC. If it is not the sensor and wires, you have to replace the ERC, but most likely the problem is with the wires and/or connections. Part number for ERC is 62965, part number for oven sensor is 62593. Gendos....post back.
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