1c4c on a Jenn-Air oven
Jenn-Air lists 1c4c as a possible fault in the oven control or its associated wiring. Many Jenn-Air ovens are wall ovens, sometimes double ovens run by one control, so a single control fault can affect both cavities. Restart the oven once from the breaker; if 1c4c returns, stop using it until the control and wiring are tested, which on a wall oven usually means sliding it out of the cabinet. If only one cavity is affected, note which one, because that narrows the search.
Error codes
Reference| Code | Meaning |
|---|---|
| 1c4c | There may be a problem with the Oven Control, or the associated wiring. |
What 1c4c can look like on a wall oven
- Neither cavity of a double oven will heat — A shared control can stop both cavities at once.
- One cavity works, the other shows the code — The fault may lie in the wiring for one cavity.
- The fan runs, but nothing heats — The control is powered but not switching the elements.
- The display flickers or restarts — A wiring fault can interrupt the control's power.
- The door lock engages at odd times — The control drives the lock, so a control fault can show here too.
- The code appears only during self-clean — The highest temperatures stress the control and the wiring that runs between the cavities.
Ranked causes
- A failed oven control — First: the board the code names fails with heat and age.
- Wiring between the control and a cavity — Second: harnesses run behind and between the cavities, close to their heat.
- A connector at the control — Third: plugs on the board can brown or loosen.
- A supply problem at the junction box — Fourth: a poor connection where the oven is wired in.
Checks, in order
- Restart from the breaker — Several minutes off, then on.
- Test each cavity separately — Note whether the code relates to one cavity or both.
- Try different functions — Bake, broil and convection use different circuits.
- Smell for burning near the control — A burnt smell rules out further use.
- Look at the display after the restart — A code that returns before either cavity is used points to the control itself.
Owner steps
- Switch off the oven's breaker — Wait several minutes before restoring power.
About 5 min
- Set the clock and test the upper cavity — Run a short bake.
Tools: oven thermometerAbout 15 min
- Test the lower cavity — Repeat with the other cavity on a double oven.
Tools: oven thermometerAbout 15 min
- Note which functions fail — Write it down for the professional.
Tools: notepadAbout 3 min
- Stop before removing the oven — Sliding a wall oven out of its cabinet and testing behind it is a two-person professional job with the power off.
Tools: ::
Safety with wall ovens
Safety
A wall oven is heavy and hangs from its cabinet fixings, so never try to pull it out alone. Switch off its breaker before any inspection; the control can hold a charge after the power is cut. If either cavity heats when nothing is set, leave the breaker off until the oven is repaired.
When 1c4c needs a professional
Arrange a visit if 1c4c returns after a restart, if a cavity will not heat, or if you notice a burning smell. Testing the control and the wiring between the cavities usually means sliding the oven out of its cabinet, which is work for professionals. Say whether the oven is a single or double unit and roughly how old it is, so the right parts and a second person can be planned.
Neighbouring oven codes
Coverage of 1c4c
The reading covers Jenn-Air single and double wall ovens and ranges with an electronic control that list 1c4c. It does not cover Jenn-Air microwaves, cooktops or other brands. No model-specific 1c4c page has been published; harness routing differs between single and double ovens, so use the documentation for your model.
Jenn-Air oven codes
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
