Viking Range Error Code 220: Heating Element Open... | appliancefaults.com

Technical Background:

error code 220 on a Viking range typically indicates an open circuit in either the bake or broil heating element circuit. The main control unit (MCU) monitors the current flow through these elements. If the MCU detects a break in the circuit, it will generate the error code. The voltage path flows from the breaker panel to the control board, then to the element via a relay. An open circuit prevents the voltage from completing the path, triggering the fault.

Symptoms:

The oven is not heating properly or at all. The control panel displays error code 220.

Possible Causes:

Burned-out bake element.
Damaged broil element.
Loose or corroded wiring connections to the element.
Faulty oven temperature sensor (RTD).
Defective relay on the control board.
Wiring harness fault between the control board and element.

Solution:

1

Disconnect power to the range at the breaker panel.
2

Locate the bake and broil elements inside the oven cavity.
3

Visually inspect the elements for any signs of damage, such as breaks, blisters, or burn marks.
4

Use a multimeter to test the continuity of each element. A good element will typically read between 15-30 ohms. An open circuit indicates a faulty element.
5

Check the wiring connections to the elements. Tighten any loose connections and clean off any corrosion.
6

If the elements test good, test the oven temperature sensor (RTD) for proper resistance (typically around 1000-1100 ohms at room temperature).
7

If the sensor and elements are good, suspect a faulty relay on the control board or a wiring harness fault. Replace the control board or repair the wiring harness as needed.

Safety Warning:

Always disconnect power to the range at the breaker panel before performing any repairs. Use proper Lock Out/Tag Out (LOTO) procedures to prevent accidental re-energization. Be aware of potentially high voltage (240V AC) when working on the range's electrical components.

Prevention:

Regularly inspect the heating elements for signs of wear and tear. Avoid using harsh chemicals when cleaning the oven, as these can damage the elements. Schedule annual licensed technician maintenance to inspect and clean wiring connections.

Expert Tip:

Some Viking ranges have a service mode that allows you to manually activate each heating element for testing purposes. Consult the service manual for the proper sequence to enter service mode and perform element testing.

Frequently Asked Questions

•What is the typical resistance value for a functioning bake element in a Viking range?

A typical bake element in a Viking range will usually have a resistance between 15 and 30 ohms. Use a multimeter to check.

•How do I access the control board on my Viking range to check the relays?

The control board is usually located behind the control panel. You will need to remove the screws securing the panel to the range. Exercise extreme caution and disconnect power first. Refer to the service manual.

•Can a faulty door switch cause this error code?

While a faulty door switch can cause other issues, it's less likely to be the primary cause of error code 220, which specifically indicates an open circuit in the heating element circuit. It's still worth checking the switch for continuity, but focus on the heating elements and wiring first.

Viking Range Error Code 220: Heating Element Open Circuit Troubleshooting

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•What is the typical resistance value for a functioning bake element in a Viking range?

•How do I access the control board on my Viking range to check the relays?

•Can a faulty door switch cause this error code?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: