Wolf · Range / Oven error code

RTD CIRCUITRY ERROR (07 0 26)RTD sensing circuit fault on relay module

Cross-checked High-voltage / caution

Unlock what this code means, its causes, tests and parts

Full library + AI assistant + the OnCall Tech app for iPhone & Android. $34.90, one time.

OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

Related diagnostic guides

Guide · Range / Oven

Oven cooling fan keeps running after the oven is off (or never runs)

Electric and many gas ranges and wall ovens have a cooling fan that protects the controls, door and cabinetry; it keeps running after the oven is off until the controls area cools, and cannot be switched off. Running for a while after a long or hot bake is normal; running with the oven cold, starting at power-up or never stopping points to a fan thermostat stuck closed, a welded relay, a bad temperature sensor reading or a control fault. A fan that never runs is a safety issue because the controls overheat.

8 steps ~60 minmoderate

Guide · Range / Oven

Food burns or over-browns on the bottom (foil, pans, rack position before the bake element or sensor)

Bottom burning is most often caused by how the oven is used: foil or a liner on the oven floor or covering a full rack, dark or thin pans, a rack too low, or skipped preheat. Rule those out and run a measured bake test before replacing an element, a sensor or a control. If the average temperature is off, calibrate it with the control's offset; only a sensor or control that cannot hold temperature is a part.

5 steps ~45 mineasy

Guide · Range / Oven

Oven keeps heating when turned off or overheats past setpoint

This is a fire hazard: turn the breaker off first, then diagnose. On electronic controls the usual cause is a relay on the control board whose contacts have welded closed. On dial ovens it is a stuck thermostat or selector contact. Less often a shorted sensor or harness is to blame. On gas ovens, a burner that won't shut off is a gas-valve problem and goes to a licensed gas technician.

7 steps ~60 minadvanced

More Wolf range / oven codes

Wolf · Range / Oven

10 0 0

UIM communication error

Cross-checked High-voltage / caution

Wolf · Range / Oven

3222 / 3221

Oven RTD sensor open

Cross-checked High-voltage / caution

Wolf · Range / Oven

4910

Upper cooling fan stalled

Cross-checked High-voltage / caution

Wolf · Range / Oven

COMM ERR

Communication lost with oven controller

Cross-checked High-voltage / caution

Wolf · Range / Oven

COOL FAN

Cooling fan failure reported

Cross-checked High-voltage / caution

Wolf · Range / Oven

E01

Memory (EEPROM) read error

Cross-checked High-voltage / caution