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Error code reference

Wolf Range Error Code 07-23

DLB1 relay or TCO open.

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What the 07-23 error code actually means

Your Wolf range has detected a problem with a safety relay or a thermal safety device inside the appliance, and the range has stopped operating to prevent further issues. This is typically caused by a faulty relay board or a safety component that tripped due to excessive heat. A technician will need to inspect the wiring and likely replace an internal part to restore normal operation.

Diagnostic procedure

The full 07-23 procedure

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MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check connections, replace Relay Module.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of 07-23

Ranked by how often they cause this code
  1. 1Failed DLB1 Relay on Relay Module
  2. 2Tripped or Failed Thermal Cutout (TCO)
  3. 3Loose or Corroded Wiring Connections
  4. 4Damaged Wiring Harness

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Questions people ask about 07-23

What does 07-23 mean on a Wolf range?
Error code 07-23 on a Wolf range indicates that the control system has detected an open circuit in the DLB1 relay or the Thermal Cutout (TCO) associated with that circuit. This means the relay or safety device is not completing the circuit as expected. The range will not operate normally until the fault is resolved. A technician should inspect the Relay Module connections and test the TCO for continuity.
Is it safe to use my Wolf range while error 07-23 is displayed?
You should not continue using the range while this error is active. The fault indicates a break in a safety-critical relay or thermal cutout circuit, which means the range is not operating within its designed parameters. Continuing to use the appliance could risk further component damage or unsafe operating conditions.
How much does it cost to repair error code 07-23 on a Wolf range?
Repair costs depend on whether the fault is a loose connection, a failed Relay Module, or a failed Thermal Cutout. A Relay Module replacement for a Wolf range typically involves both the cost of the part and labor, with total repair estimates generally ranging from $200 to $500 or more depending on your location and the specific model. Diagnosing the exact failed component before ordering parts can help avoid unnecessary expenses.
Can I fix error code 07-23 myself?
A knowledgeable DIYer can start by unplugging the range and inspecting the wiring connections at the Relay Module for looseness or corrosion, as this is the first recommended diagnostic step. However, replacing the Relay Module or a Thermal Cutout involves working with high-voltage components and requires comfort with appliance disassembly. If connections appear intact and the fault returns, professional service is strongly recommended.
Will resetting the range clear error code 07-23?
Resetting the range by cutting power at the breaker may temporarily clear the displayed code, but it will return if the underlying cause has not been addressed. If the DLB1 relay has failed or the TCO is open, the fault will reappear once the control system runs its diagnostic checks. A reset alone is not a repair.

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