Error code · Microwave

Whirlpool Built-In Microwave Code 1c4c: Main Control and Connections

Medium · inspection needed

Code: 1c4c
Appliance: Microwave
Brand: Whirlpool
Warranty: 30-day workmanship

What 1c4c means

When 1c4c appears on a Whirlpool built-in microwave or microwave drawer, for instance model WMC50522AS, the oven is reporting a problem in its main control or the wiring tied to it. That is a circuit-level message, so it tells us where to look but not which part has gone bad. The display shows the code, and cooking may be interrupted or blocked until the condition clears.

Common causes of 1c4c

Main control board reporting an internal condition
Loose or damaged wiring to the control
Power glitch that a short breaker reset removes

✓ One safe check you can try

1. Find the breaker for the microwave and turn it off for one minute. 2. Turn it back on. 3. Keep an eye on the display for the next minute. 4. If 1c4c does not return, try a short heating cycle to confirm the oven is normal. 5. If it does return, leave the breaker on and call us.

! Why to stop there

Repeat codes after a reset lead us to measure the control and its wiring before we change anything
We separate a wiring problem from a control problem so you only pay for what the unit needs
Repairs include a 30-day workmanship warranty, and you see the price in writing first

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Microwave codes

F8E5Whirlpool Microwave Code F8E5: Exhaust Air Temperature Sensor PUSH or PSHWhirlpool Built-in Microwave Shows PUSH or PSH: Press Start F9Whirlpool OTR Microwave Error F9: Control and Relay Boards Registration ErrorWhirlpool Over-the-range Microwave "Registration Error": Network Checks F9 or F9E0Whirlpool Built-in Microwave Codes F9 and F9E0: Home Power Supply Sabbath, Sab, 5Ab, or 5A6Whirlpool Built-in Microwave Showing Sab or 5Ab: Sabbath Mode F9QWhirlpool Over-the-range Microwave with F9Q on the Display: Power Reset Code SEWhirlpool Over-the-range Microwave Error SE: Keypad Circuit

1c4c1c4c questions

My microwave drawer shows 1c4c. What should I do first?

Turn its breaker off for one minute, turn it on, and watch the oven for a minute. If the code stays gone, you are done. If it returns, we need to test the control.

Does 1c4c mean I need a whole new microwave?

Not by itself. The code points to the control circuit, and we confirm the cause by testing. A new unit is only worth discussing if the repair cost is out of line, and we tell you straight.

Can I keep using the oven while 1c4c is displayed?

It may not heat or run normally while the code is up. We suggest leaving it off after one failed reset attempt and letting us check the control.

Book a visit

Still seeing 1c4c?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 589-6107