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Error code reference

Wolf Range Error Codes: What They Mean and What to Do

When your Wolf range shows a code, it is pointing at the part of the cycle that failed. This page lists the 35 codes we could confirm in Wolf's own owner's manuals and support articles: what each one means, the checks that are safe to do yourself, and the point where a technician should take over.

Compiled by the Appliance Surgeon team from Wolf documentation · Last checked

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At a glance

Wolf range codes and what to do

Covers Wolf dual-fuel ranges (legacy 2002–2020 and the 2021+ DF generation) and Wolf induction ranges. Legacy dual-fuel ranges show words or ERR plus a number; 2021+ ranges show four-character codes; induction ranges show codes on the cooktop display.

Depending on the family, the display shows a word message (L Series and legacy dual-fuel, e.g. COOL FAN, PROBE SHORTED), ERR plus a number (legacy dual-fuel), number groups such as 07 x 23 (Legacy E Series), a four-character code such as 5121 or 4A10 (M Series and 2021+ ranges), or an E-code that some steam oven displays pair with an F-message. For most codes Wolf's first step is to switch the home circuit breaker off for about 30 seconds, restore power and retest; if the code returns, Wolf directs owners to Factory Certified Service.

Legacy dual-fuel ranges (2002-2020)Legacy induction rangesDual-fuel ranges, 2021 and newerL Series wall ovens and legacy dual-fuel rangesCurrent dual-fuel ranges (2021+) and current induction rangesInduction ranges, current IR models (cooktop display)Induction ranges IR30450 and IR36550 (cooktop display)All electric Wolf ovens (L, E, M Series; dual-fuel and induction ranges)Wall ovens, ranges and steam ovens with a probe socketL, Legacy E and M Series wall ovens; dual-fuel ranges (3031/3032 on 2021+ ranges)Dual-fuel ranges (SAb on oven knob); L and E Series wall ovens (SABBATH)Legacy dual-fuel ranges (2002-2020); shown on the oven knobDual-fuel ranges, 2021 and newer with two ovens (right oven)Dual-fuel ranges, 2021 and newer (DF3050, DF3650, DF4850, DF6050 families)
CodeMeaningWhat to do
Legacy dual-fuel ranges (2002-2020)
ERR 01Door lock switches not sensed within 60 secondsCheck, then call if it returns
ERR 02Oven overheated past its safety limitNeeds a technician
ERR 03Oven temperature sensor (RTD) open circuitNeeds a technician
ERR 04Oven temperature sensor (RTD) short circuitNeeds a technician
ERR 07Internal (SPI) communication lost to the control boardCheck, then call if it returns
ERR 08Control memory checksum wrong at power-upCheck, then call if it returns
ERR 09Meat probe reads as shortedCheck, then call if it returns
ERR 10Control upset by a power surge or outageCheck, then call if it returns
0EPower relay sensed closed when it should be openNeeds a technician
KEY COMMControl panel lost communication with the oven controllerNeeds a technician
Legacy induction ranges
20Wrong supply connection, or input above 300 voltsNeeds a technician
31Invalid control configurationCheck, then call if it returns
36Internal (TC) temperature too highCheck, then call if it returns
E4Configuration implausible (control board issue)Check, then call if it returns
E6Electrical supply errorCheck, then call if it returns
E7Unspecified error, usually shown with another codeCheck, then call if it returns
Dual-fuel ranges, 2021 and newer
4321Left convection element not detected (load missing)Needs a technician
4421Oven cooling fan not detected or shortedNeeds a technician
5222Power control (PCM) board area too hotNeeds a technician
6020Control network (RS485) communication faultCheck, then call if it returns
L Series wall ovens and legacy dual-fuel ranges
COOL FANCooling fan failure reported by its sensing switchNeeds a technician
LOWER RELAYLower oven relay circuit reported a failureNeeds a technician
Current dual-fuel ranges (2021+) and current induction ranges
5521Primary cooling fan running too slowly (stalled)Needs a technician
5522Secondary cooling fan running too slowly (stalled)Needs a technician
Induction ranges, current IR models (cooktop display)
E01Touch key error on the left secondary controlCheck, then call if it returns
E40Induction generator hardware or sync errorNeeds a technician
Induction ranges IR30450 and IR36550 (cooktop display)
E 05Induction generator not responding (LIN communication error)Needs a technician
E 56Left secondary control board is too hotCheck, then call if it returns
All electric Wolf ovens (L, E, M Series; dual-fuel and induction ranges)
LOOven is still preheating; this is not a faultUsually a quick fix
Wall ovens, ranges and steam ovens with a probe socket
PROBE?Oven cannot detect the temperature probeUsually a quick fix
L, Legacy E and M Series wall ovens; dual-fuel ranges (3031/3032 on 2021+ ranges)
PROBE SHORTEDTemperature probe or its connection has failedCheck, then call if it returns
Dual-fuel ranges (SAb on oven knob); L and E Series wall ovens (SABBATH)
SAbSabbath mode is on; this is not a faultUsually a quick fix
Legacy dual-fuel ranges (2002-2020); shown on the oven knob
PFPower failure, or oven too hot for the chosen modeUsually a quick fix
Dual-fuel ranges, 2021 and newer with two ovens (right oven)
0121Right oven convection element drive stuck closedNeeds a technician
Dual-fuel ranges, 2021 and newer (DF3050, DF3650, DF4850, DF6050 families)
3C20Supply voltage to the range is too highNeeds a technician

Safety first. Switch the appliance off at its power button and unplug it or turn off the breaker before you clean a filter or check a hose. If you smell gas, leave the home and call your gas utility from outside. If there is a burning smell, smoke, sparking or water near wiring, stop using it and keep it off until it has been checked.

Code by code

What each Wolf range code means

Legacy dual-fuel ranges (2002-2020)

ERR 01Door lock switches not sensed within 60 seconds

Check, then call if it returns

Also shown as or same meaning as: Err 01

Common causes

  • Door lock motor or lock switch not responding

What you can safely check

  • If self-clean just ran, wait for the oven to cool and unlock
  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [14], [15]

ERR 02Oven overheated past its safety limit

Needs a technician

Also shown as or same meaning as: Err 2

Common causes

  • Oven reached about 630°F with the door unlocked
  • Oven reached about 950°F with the door locked

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Retest once; if it returns, stop using the oven until serviced

Call a technician if: Code comes back after one breaker reset

Source: [16]

ERR 03Oven temperature sensor (RTD) open circuit

Needs a technician

Also shown as or same meaning as: err 03

Common causes

  • Temperature sensor or its wiring open

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [17]

ERR 04Oven temperature sensor (RTD) short circuit

Needs a technician

Also shown as or same meaning as: Error 04

Common causes

  • Temperature sensor or its wiring shorted

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [18]

ERR 07Internal (SPI) communication lost to the control board

Check, then call if it returns

Also shown as or same meaning as: Error 07

Common causes

  • Communication fault between control boards

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [19]

ERR 08Control memory checksum wrong at power-up

Check, then call if it returns

Also shown as or same meaning as: Error 08

Common causes

  • Control memory (EEPROM) fault

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [20]

ERR 09Meat probe reads as shorted

Check, then call if it returns

Also shown as or same meaning as: 09

Common causes

  • Probe not fully seated
  • Faulty probe

What you can safely check

  • Push the probe fully into its socket, or reinsert it
  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code returns with the probe fully seated

Source: [21]

ERR 10Control upset by a power surge or outage

Check, then call if it returns

Also shown as or same meaning as: Err 10, ERR10

Common causes

  • Power surge
  • Power outage

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [22]

0EPower relay sensed closed when it should be open

Needs a technician

Also shown as or same meaning as: OE

Common causes

  • Shorted power relay
  • Element circuit failure
  • Relay drive circuit failure

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • If the oven heats while turned off, switch the breaker off and leave it off

Call a technician if: Code returns, or the oven heats while off

Source: [23]

KEY COMMControl panel lost communication with the oven controller

Needs a technician

Common causes

  • Fault between oven controller and control panel

What you can safely check

  • Wolf lists no owner fix for this code; note it and book service

Call a technician if: Message appears at all

Source: [25]

Legacy induction ranges

20Wrong supply connection, or input above 300 volts

Needs a technician

Common causes

  • Incorrect electrical connection
  • Supply voltage over 300 V

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code returns; the supply needs checking by a professional

Source: [39]

31Invalid control configuration

Check, then call if it returns

Common causes

  • Configuration error in the control

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [40]

36Internal (TC) temperature too high

Check, then call if it returns

Common causes

  • Over temperature detected

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [41]

E4Configuration implausible (control board issue)

Check, then call if it returns

Common causes

  • Control board configuration fault

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [42]

E6Electrical supply error

Check, then call if it returns

Common causes

  • Problem with the incoming power

What you can safely check

  • Check the range's breaker is fully on
  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [43]

E7Unspecified error, usually shown with another code

Check, then call if it returns

Common causes

  • Accompanies another fault

What you can safely check

  • Note any other code shown and mention it when booking service
  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [44]

Dual-fuel ranges, 2021 and newer

4321Left convection element not detected (load missing)

Needs a technician

Also shown as or same meaning as: 4322

Common causes

  • Convection element or its circuit not detected

What you can safely check

  • Wolf lists no owner fix for this code; note it and book service

Call a technician if: Code appears at all

Source: [28], [29]

4421Oven cooling fan not detected or shorted

Needs a technician

Common causes

  • Cooling fan or its circuit fault

What you can safely check

  • Wolf lists no owner fix for this code; note it and book service

Call a technician if: Code appears at all

Source: [30]

5222Power control (PCM) board area too hot

Needs a technician

Common causes

  • PCM surroundings exceeded their temperature limit

What you can safely check

  • Wolf lists no owner fix for this code; note it and book service

Call a technician if: Code appears at all

Source: [31]

6020Control network (RS485) communication fault

Check, then call if it returns

Common causes

  • Interface module lost contact on the internal network

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [34]

L Series wall ovens and legacy dual-fuel ranges

COOL FANCooling fan failure reported by its sensing switch

Needs a technician

Common causes

  • Cooling fan not running
  • Fan sensing switch fault or wrong fan setting

What you can safely check

  • Legacy dual-fuel range: switch the breaker off 30 seconds, then on, and retest
  • L Series oven: Wolf lists no owner fix; book service

Call a technician if: Any COOL FAN message on an L Series oven, or a repeat on a dual-fuel range

Source: [10], [11]

LOWER RELAYLower oven relay circuit reported a failure

Needs a technician

Common causes

  • Relay or relay-control circuit fault on the lower oven

What you can safely check

  • Legacy dual-fuel range: switch the breaker off 30 seconds, then on, and retest
  • L Series oven: Wolf lists no owner fix; book service

Call a technician if: Any LOWER RELAY message on an L Series oven, or a repeat on a dual-fuel range

Source: [12], [13]

Current dual-fuel ranges (2021+) and current induction ranges

5521Primary cooling fan running too slowly (stalled)

Needs a technician

Common causes

  • Cooling fan speed below its minimum

What you can safely check

  • Wolf lists no owner fix for this code; note it and book service

Call a technician if: Code appears at all

Source: [32]

5522Secondary cooling fan running too slowly (stalled)

Needs a technician

Common causes

  • Cooling fan speed below its minimum

What you can safely check

  • Wolf lists no owner fix for this code; note it and book service

Call a technician if: Code appears at all

Source: [33]

Induction ranges, current IR models (cooktop display)

E01Touch key error on the left secondary control

Check, then call if it returns

Also shown as or same meaning as: E1, 1

Common causes

  • Key fault on the left secondary board

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [35]

E40Induction generator hardware or sync error

Needs a technician

Also shown as or same meaning as: E 40, 40

Common causes

  • Generator hardware fault

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [37]

Induction ranges IR30450 and IR36550 (cooktop display)

E 05Induction generator not responding (LIN communication error)

Needs a technician

Also shown as or same meaning as: Error 5

Common causes

  • No response from the generator

What you can safely check

  • Wolf lists no owner fix for this code; note it and book service

Call a technician if: Code appears at all

Source: [36]

E 56Left secondary control board is too hot

Check, then call if it returns

Common causes

  • Left secondary board over temperature

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • Use the range again and watch whether the code comes back

Call a technician if: Code comes back after one breaker reset

Source: [38]

All electric Wolf ovens (L, E, M Series; dual-fuel and induction ranges)

LOOven is still preheating; this is not a fault

Usually a quick fix

Common causes

  • Normal display while the oven heats up

What you can safely check

  • Wait for preheat to finish; LO clears by itself
  • If the oven never warms up, check its home circuit breaker is on

Call a technician if: Oven stays on LO and never reaches the set temperature

Source: [1]

Wall ovens, ranges and steam ovens with a probe socket

PROBE?Oven cannot detect the temperature probe

Usually a quick fix

Also shown as or same meaning as: ? PROBE, PROBE (flashing)

Common causes

  • Probe plug not fully pushed into its socket
  • Wrong probe type for this oven
  • Moisture or debris in the probe socket

What you can safely check

  • Pull the probe out and push it back in until fully seated
  • Use the right probe: black for steam ovens and SO24TE, blue for L, E, M Series and ranges
  • Dry the socket and blow out debris with canned air
  • Check you are using a cooking mode that supports the probe

Call a technician if: Message stays with the correct probe fully seated; the probe may need replacing

Source: [1]

L, Legacy E and M Series wall ovens; dual-fuel ranges (3031/3032 on 2021+ ranges)

PROBE SHORTEDTemperature probe or its connection has failed

Check, then call if it returns

Also shown as or same meaning as: 3031, 3032

Common causes

  • Faulty temperature probe
  • Probe plug not fully seated

What you can safely check

  • Turn the oven off, then reseat the probe plug firmly in its socket
  • Keep the probe tip inserted in the food while cooking
  • Reset the oven and probe temperatures and try again
  • If it repeats, replace the probe through a Wolf parts distributor
  • After fitting a new probe, a breaker reset may be needed to clear the message

Call a technician if: A new, correctly seated probe still shows the message

Source: [3], [4], [5], [6], [7], [8]

Dual-fuel ranges (SAb on oven knob); L and E Series wall ovens (SABBATH)

SAbSabbath mode is on; this is not a fault

Usually a quick fix

Also shown as or same meaning as: SABBATH

Common causes

  • Sabbath mode was switched on

What you can safely check

  • L or E Series: touch OVEN OFF to leave Sabbath mode
  • Dual-fuel range: leave Sabbath mode as your use & care guide describes

Call a technician if: Controls stay unresponsive after leaving Sabbath mode and a breaker reset

Source: [4], [5], [9]

Legacy dual-fuel ranges (2002-2020); shown on the oven knob

PFPower failure, or oven too hot for the chosen mode

Usually a quick fix

Also shown as or same meaning as: P F

Common causes

  • Power was interrupted
  • Oven temperature too high for the selected cooking mode

What you can safely check

  • Turn the oven selector to a cooking mode, then back to OFF
  • If the oven is very hot, open the door to let it cool
  • Switch the range's home circuit breaker off for 30 seconds, then back on

Call a technician if: PF keeps returning after these steps

Source: [24]

Dual-fuel ranges, 2021 and newer with two ovens (right oven)

0121Right oven convection element drive stuck closed

Needs a technician

Common causes

  • Element relay or triac closed when it should be open

What you can safely check

  • Switch the range's home circuit breaker off for 30 seconds, then back on
  • If the oven heats while turned off, switch the breaker off and leave it off

Call a technician if: Code returns, or the oven heats while off

Source: [26]

Dual-fuel ranges, 2021 and newer (DF3050, DF3650, DF4850, DF6050 families)

3C20Supply voltage to the range is too high

Needs a technician

Common causes

  • High input voltage

What you can safely check

  • Wolf lists no owner fix for this code; note it and book service

Call a technician if: Code appears at all; the supply may also need an electrician

Source: [27]

Still showing the code?

When to call a technician

If a code comes back after the safe checks, or the table says it needs a technician, the fault is usually a sensor, valve, pump, motor or control board, and diagnosing it means opening the range. Our technicians repair Wolf appliances across Washington, DC, Northern Virginia and Maryland, seven days a week until 10 PM. Tell us the code when you book and we bring the parts that code usually points to.

Book Wolf range repair $75 diagnostic, credited toward the repair.

Sources

Where these meanings come from

Every code on this page was checked against Wolf's own documentation: owner's manuals, use and care guides, support articles or Wolf technical sheets. Codes we could only find on third-party sites are left out. Meanings are paraphrased; your model's manual is the final word.

  1. Electric Oven Displays "LO" — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  2. Wolf Oven with Probe Flashing on Display or Probe Does Not Register — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  3. Wall Oven Probe Shorted Error Code — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  4. L Series Built-In Oven Use & Care Guide — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  5. E Series Built-In Oven Use & Care Guide — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  6. M Series Oven Use & Care Guide — Sub-Zero Group, Inc. (Wolf). ca.subzero-wolf.com
  7. Legacy Dual Fuel Probe Shorted Error — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  8. Dual Fuel Range Probe Shorted Error 3031 or 3032 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  9. Dual Fuel Range Use & Care Guide — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  10. L Series Wall Oven Error Code COOL FAN — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  11. Legacy Dual Fuel Range Error Code COOL FAN — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  12. L Series Wall Oven Displays Lower Relay Error — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  13. Dual Fuel Range Error Code LOWER RELAY — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  14. Legacy Dual Fuel Range Error Code 01 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  15. Wolf Oven Door Will Not Unlock — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  16. Legacy Dual Fuel Range Error Code 02 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  17. Legacy Dual Fuel Range Error Code 03 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  18. Legacy Dual Fuel Range Error Code 04 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  19. Legacy Dual Fuel Range Error Code 07 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  20. Legacy Dual Fuel Range Error Code 08 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  21. Legacy Dual Fuel Range Error Code 09 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  22. Legacy Dual Fuel Error Code 10 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  23. Legacy Dual Fuel Range Error Code 0E — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  24. Legacy Dual Fuel Range Error Code PF — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  25. Legacy Dual Fuel Range KEY COMM Error — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  26. Dual Fuel Range RConv Element Drive Shorted | Right Oven | 0121 Error — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  27. Dual Fuel Range (DF3050, DF3650, DF4850, DF6050) High Input Voltage | 3C20 Error — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  28. Dual Fuel Range L Conv Element Load Missing | Error 4321 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  29. Dual Fuel Range L Conv Element Load Missing | Error 4322 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  30. Dual Fuel Range Oven Cooling Fan Not Detected or Shorted | 4421 Error — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  31. Dual Fuel Range PCM Ambient Exceeds Temp | Error 5222 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  32. Dual Fuel and Induction Range Primary Stalled Cooling Fan | 5521 Error — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  33. Dual Fuel and Induction Range Secondary Stalled Cooling Fan | 5522 Error — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  34. Dual Fuel Range UIM RS485 Network Fault | 6020 Error — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  35. Wolf Induction Range Error Code E01 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  36. Wolf Induction Range (IR30450, IR36550) Error Code E 05 | LIN Communication Error — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  37. Wolf Induction Range Error Code E40 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  38. Wolf Induction Range (IR30450, IR36550) Error Code E 56 | Left Secondary Temperature Too High — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  39. Legacy Induction Ranges (IR) Series Error Code 20 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  40. Legacy Induction Ranges (IR) Series Error Code 31 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  41. Legacy Induction Ranges (IR) Series Error Code 36 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  42. Legacy Induction Ranges (IR) Series Error Code E4 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com
  43. Legacy Induction Ranges (IR) Series Error Code E6 — Sub-Zero Group, Inc. (Wolf). subzero-wolf.com
  44. Legacy Induction Ranges (IR) Series Error Code E7 — Sub-Zero Group, Inc. (Wolf). www.subzero-wolf.com

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