Wolf Dual Fuel Range Error Code 250: Convection Element... | appliancefaults.com

Technical Background:

The Main Control Unit (MCU) monitors the current draw and temperature feedback from the convection element circuit. Error 250 indicates the MCU has detected an open circuit or an abnormal current draw in the convection element circuit. This circuit includes the element itself, the wiring, the convection fan motor, temperature sensor, and the control relay. The MCU uses a 120V AC signal to activate the relay which powers the convection element.

Symptoms:

The oven displays error code 250. The convection bake function does not work. The oven may still operate in standard bake mode. The convection fan may or may not be running.

Possible Causes:

Failed Convection Element
Open Wiring to Convection Element
Faulty Convection Fan Motor
Defective Convection Relay on Control Board
Loose Wiring Connection at Element or Relay
Damaged Temperature Sensor

Solution:

1

Disconnect power to the range at the breaker panel.
2

Locate the convection element at the rear of the oven cavity.
3

Use a multimeter to test the convection element for continuity. A reading of OL (open line) indicates a failed element.
4

Inspect the wiring to the convection element for any signs of damage or loose connections. Tighten or replace as needed.
5

Check the convection fan motor wiring and test the motor for proper operation. Replace if necessary.
6

Locate the convection relay on the control board and test for proper function with a multimeter when the convection bake is activated. If the relay is not functioning, replace the control board.
7

If the temperature sensor is suspected, use a multimeter to verify resistance values. Consult the service manual for correct values at room temperature (approx. 75 degrees Fahrenheit). Replace if faulty.

Safety Warning:

Always disconnect power to the appliance at the breaker panel before performing any repairs. Lock Out/Tag Out (LOTO) procedures should be followed to prevent accidental energizing of the circuit. High voltage is present within the appliance, use caution.

Prevention:

Periodically inspect the convection element for any signs of damage. Avoid using abrasive cleaners inside the oven, as this can damage the element and wiring. Ensure proper ventilation around the range to prevent overheating.

Expert Tip:

After replacing the convection element, run the oven through a self-clean cycle. This will burn off any manufacturing residue and ensure optimal performance. Service Mode access: Press and hold the Bake and Broil buttons simultaneously for 5 seconds.

Frequently Asked Questions

•What is the typical resistance reading for a functional Wolf convection element at room temperature?

A typical resistance reading for a Wolf convection element at room temperature (75 degrees Fahrenheit) is between 20 and 30 ohms. However, always refer to the specific service manual for your model for the most accurate value.

•How do I access the control board on my Wolf Dual Fuel Range?

Accessing the control board typically involves removing the top panel of the range. Disconnect power first. Then, remove screws securing the top panel, usually located at the rear or sides of the range. Once the top panel is removed, you should have access to the control board.

•If the convection element tests good, what other components should I focus on?

If the convection element tests good, focus on the convection fan motor, the wiring harness connecting the element and motor, the convection relay on the control board, and the oven temperature sensor. Any of these could cause Error 250.

Wolf Dual Fuel Range Error Code 250: Convection Element Failure Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the typical resistance reading for a functional Wolf convection element at room temperature?

•How do I access the control board on my Wolf Dual Fuel Range?

•If the convection element tests good, what other components should I focus on?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: