Mr. Coffee Error Codes & Blinking Lights (BVMC-SJX33, 4-Cup, Café Barista)

Mr. Coffee Uses Lights, Not Codes

Mr. Coffee drip makers have no numbered error codes. None of the four manuals read for this page (12-cup JPX37, BVMC-SJX33GT, 4-cup AR4 and the Simple Brew SK series) lists a single code. What blinks is a short list of status lights. On the programmable 12-cup models, the one that means "do something" is the flashing red Clean light: the machine wants its cleaning cycle.

Everything else that lights up or flashes is telling you the machine's state: the clock needs setting, a brew is running, a Delay Brew is armed. Which lights you have depends on the model, so find yours first:

• Clock, and a Clean button on the panel: 12-Cup Programmable JPX37 series.
• Clock, Select/Off button, blue Glass and Thermal indicators: BVMC-SJX33GT or SJX36GT.
• Just a lighted ON/OFF switch: a 4-cup such as the AR4/AR5, or a basic Simple Brew.
• Espresso, Cappuccino and Latte buttons: the Café Barista espresso maker.

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Every Mr. Coffee Light at a Glance

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Try This First

• Look at the color and the button. On a JPX37 both the Clean light and the Strong light are red. A red light next to the Strong button just means Strong is selected.
• Set the clock. A flashing clock is the most common "blinking" complaint, and it's only asking for the time. Hold HOUR and MINUTE until it's right.
• Check the plug and the outlet. For a dead ON light, Mr. Coffee's manuals list only two causes: unplugged, or a power outage.
• Count since the last clean. The manuals suggest cleaning every 80 brews with soft water and every 40 with hard water. Past that, scale is the likely story.

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JPX37: The Red Clean Light

This is the one real warning on a Mr. Coffee drip maker. In the manual's words, the red Clean light "will turn on and flash to let you know that your coffeemaker needs to be cleaned", and it "will turn off after the clean cycle has been completed."

The clean cycle is a program you start with the Clean button. Brewing a pot of vinegar with Brew Now isn't the same thing.

1. Remove the water filtration disk if one is fitted.
2. Pour Mr. Coffee Cleaner (mixed per its package) or 4 cups (20 fl oz) of undiluted white vinegar into the reservoir.
3. Put an empty paper filter, or the permanent filter, in the basket. Close the lid and center the empty carafe on the plate.
4. Press Clean once. The red light comes on steady.
5. Leave it alone for 45 to 60 minutes. It slow-brews about 3 cups, pauses for 30 minutes with the Clean light on, then brews the rest. When it's done, the Clean light and the machine switch off.
6. Rinse the carafe and run two full brews of fresh water.

If the light won't go off, the cycle almost always didn't finish. Our Mr. Coffee clean light guide works through each reason.

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BVMC-SJX33GT: No Clean Light at All

The SJX33GT's manual lists its panel in full: clock, HOUR and MINUTE, Select/Off, Brew Now (green), Delay Brew (amber), Brew Strength (amber for STRONG, green for REGULAR), Glass and Thermal (blue), Fresh Brew Timer and Set Delay. There is no Clean button and no Clean light, so the machine can't flash a cleaning warning. A guide telling you to hold Select for 3 seconds to enter "clean mode" is describing a feature this model doesn't have.

How its lights behave, from the manual:

• Select/Off once: green Brew Now, brewing starts.
• Select/Off twice: amber Delay Brew, armed for the preset time.
• Select/Off three times: all lights off, cancelled.
• Clock flashing: time not set. Pressing any button first starts it at 12:00 a.m.
• Glass to Thermal: switches automatically when a DRD95 thermal carafe is on the plate, and can't be changed mid-brew.

Because nothing warns you, cleaning is by the calendar. The manual's method: 4 cups of white vinegar in the reservoir, brew three cups, switch it off and let it stand 30 minutes, brew the rest, then two fresh-water brews. Our Mr. Coffee descaling guide has it step by step.

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4-Cup Models: One Light, Read the Behavior

A 4-cup Mr. Coffee such as the AR4 or AR5 has a single lighted ON/OFF switch. The light is either on or it isn't. Instead of codes, the manual tells you what the machine does when it needs attention:

• ON light doesn't come on: unplugged or a power outage.
• "If the pumping action stops before all the water has been pumped out of the machine, the appliance requires cleaning." That's the 4-cup's main warning sign. Excess steam or a much longer brew time mean the same thing.
• Burning smell: an empty carafe was left on the hot plate, or coffee was spilled on it.
• Basket overflows: basket not seated, carafe not all the way on the plate, carafe lid missing, too many grounds, or the carafe was out for more than 30 seconds.

⚠️ Safety: if the basket overflows or stops draining, the AR4 manual says not to open or handle it. Unplug, and let everything cool first.

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Café Barista: Lights on an Espresso Maker

The Café Barista (BVMC-ECMP1000) is the one Mr. Coffee with a real light language, and its manual explains each state:

• Pulsing: heating, or brewing, frothing or cleaning in progress.
• Steady: ready. Espresso is ready before Cappuccino and Latte.
• A button light flashing: the water reservoir is empty, or you pressed a drink before the machine was ready.
• All three control lights flashing alternately: the water tank is out of water.
• Cappuccino and Latte lights off: the milk reservoir isn't fully inserted.
• Lights off after 15 minutes idle: sleep mode. Press any button.

The Clean on this machine is a milk-tube rinse, not a descale warning. You turn the Froth Control Knob to Clean and hold Latte/Clean, which runs 30 seconds of water and steam through the frothing tube after each milk drink. Full fixes are in our Café Barista troubleshooting guide.

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What Mr. Coffee Lights Are Not

These claims circulate online, including on an older version of this page. None of them appears in the Mr. Coffee manuals we read:

• Numbered error codes on any drip maker.
• A clean mode on the SJX33GT, entered by holding Select.
• "PROG", "HRS" or "MIN" messages on the SJX33GT display.
• A "carafe sensor" or a reservoir "float sensor" that flashes the Brew light. The pause when you lift the carafe is the Pause 'n Serve feature (Grab-A-Cup Auto Pause on the JPX37), and the AR4 manual calls the part a drip stop valve.
• A reset button, or a button combination that clears a light.

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When to Call Mr. Coffee

Stop and call if:

• The ON light stays off with a working outlet and the plug pushed fully in.
• There's a burning smell that isn't explained by an empty or spilled-on warming plate.
• The cord or plug is damaged. The JPX37 manual says not to replace or splice it.
• The JPX37 Clean light is still flashing after a clean cycle that ran to the end and switched the machine off.

Support: 1-800-MR COFFEE (1-800-672-6333) in the U.S., 1-800-667-8623 in Canada. Have the model number ready. It's stamped on the bottom of the machine. All the manuals read give a 1-year limited warranty and say to call rather than return the machine to the store. Opening the housing voids it. The AR4 manual is explicit: "Opening the bottom service cover will void the warranty."

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Keep the Lights Quiet

• Every 80 brews (soft water) or 40 (hard water): clean it, whether or not a light has come on.
• On a JPX37, use the Clean button for the cycle, so the light clears when it finishes.
• After a power cut, reset the clock before relying on Delay Brew. Delay Brew never repeats the next day by itself.
• Fill to the line for your carafe: 12-cup MAX for glass, 8-cup MAX for thermal on the SJX33GT. Overfilling sends water out of the overfill hole at the back.
• Never leave an empty carafe on a hot plate.

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FAQ

Does Mr. Coffee have error codes?

No. None of the Mr. Coffee manuals read for this page, covering 12-cup, 4-cup and espresso models, lists a numbered code. Drip makers use a few status lights, and the programmable JPX37's flashing red Clean light is the only real warning. The Café Barista signals with flashing button lights.

Why is my Mr. Coffee blinking 12:00?

The clock hasn't been set since the machine was plugged in or lost power. The JPX37 resumes its last operation only if power returns within 7 seconds, and the SJX33GT within 10. Hold HOUR and MINUTE to set the time.

Why does my Mr. Coffee beep?

On the JPX37, a beep after brewing is the "audible ready signal" that your coffee is done. It isn't a fault. The manual doesn't describe beeps as warnings on any model read.

How do I reset the clean light on a Mr. Coffee?

Run the clean cycle with the Clean button and let it finish. The JPX37 manual says the red light turns off once the cycle is complete, and there's no reset button or button combination. If your model has no Clean button, it has no clean light to reset.

Is it safe to keep brewing while the clean light flashes?

The manual doesn't say the machine stops working. The light is a reminder that minerals are building up and affecting performance. Brewing will slow down the longer you leave it, so clean it soon.

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Related Mr. Coffee Guides

• Mr. Coffee Clean Light Won't Turn Off?: when the JPX37 Clean light stays on
• How to Descale a Mr. Coffee: the clean cycle and the vinegar method by model
• Mr. Coffee Won't Turn On?: when no light comes on at all
• Mr. Coffee Won't Brew?: lights on but no coffee
• Mr. Coffee Café Barista Not Working?: the espresso maker's fixes

Sources: Mr. Coffee JPX37-R Series User Manual (P.N. 202723); Mr. Coffee BVMC-SJX33GT and BVMC-SJX36GT User Manual (12ESM2); Mr. Coffee Coffeemaker Models AR4 & AR5 User Manual; Mr. Coffee SK Series User Manual; Mr. Coffee Café Barista BVMC-ECMP1000 User Manual.