Mr. Coffee Programmable Timer Not Working? 5 Fixes (BVMC-SJX33, 12-Cup)

You Set the Timer — So Why Is There No Coffee?

You set the auto-brew timer last night. This morning: cold machine, no brew started. The Mr. Coffee programmable timer is one of its most-used features, and it fails in a handful of very specific ways — almost all of them fixable without calling anyone.

The most important thing to know upfront: the clock and timer reset to 12:00 every time power is interrupted. A brief power flicker — even one you didn't notice — wipes the timer setting completely. This is the cause of roughly half of all "timer not working" complaints.

Let's check everything in order.

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Fix 1: Reset the Clock After Any Power Interruption

Mr. Coffee programmable brewers (BVMC-SJX33GT, 12-cup programmable, BVMC-PSTX91) have no backup battery for the clock. Any power interruption — a tripped breaker, a brief outage, someone unplugging it — resets the clock to 12:00 AM. With the clock wrong, the auto-start timer never fires at the right time (or at all).

How to fix:

1. Look at the clock display — is it showing 12:00 and blinking? That's a reset.
2. Press the HOUR button repeatedly until the correct hour appears
3. Press the MIN button to set the correct minutes
4. Make sure AM/PM is correct — press HOUR until you cycle past 12 if needed
5. Now re-set your auto-brew time: press the AUTO button, then set the desired wake time with HOUR and MIN
6. Press AUTO again to confirm — the AUTO indicator light should stay on (not blinking)

Time: 3 minutes
Cost: Free
Success Rate: 45%
Difficulty: Easy

The clock on BVMC models resets if the machine is unplugged even briefly. If you have a power strip with an on/off switch that someone turned off overnight, that's the culprit.

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Fix 2: Check the AM/PM Setting on the Auto-Start Time

AM/PM errors are the second most common timer failure — especially when daylight saving time changes the expected wake time. Setting auto-brew to 7:00 PM instead of 7:00 AM means the timer fires 12 hours late, after everyone has already left for work.

How to check:

1. Press the AUTO button once to view the currently set auto-brew time
2. Look at the AM/PM indicator next to the time display
3. If it shows PM when you want AM: hold AUTO and use the HOUR button to cycle past 12:00 until you reach the correct AM time
4. Press AUTO to save — confirm the AUTO light stays on solid

Time: 2 minutes
Cost: Free
Success Rate: 25%
Difficulty: Easy

BVMC-PSTX91 and thermal carafe models note: these display the AUTO time in a small secondary display area. Look for the lowercase "a" or "p" indicator next to the time — it's easy to miss.

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Fix 3: Confirm the AUTO Light Is Actually On

Setting the auto-brew time is only half of it — the AUTO function also needs to be actively enabled. On most Mr. Coffee models, pressing AUTO once sets the time and pressing it again toggles the feature on or off. If you accidentally pressed it twice, the timer is set but not active.

How to check:

1. Press the AUTO button once
2. Look for the AUTO indicator light on the control panel — it should be solid (not blinking, not off)
3. If the light is off: press AUTO once more to activate it
4. If the light blinks for a few seconds then turns off: the clock or timer setting is incomplete — redo Fix 1

Time: 1 minute
Cost: Free
Success Rate: 20%
Difficulty: Easy

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Fix 4: Check That the Machine Is Ready to Brew

The Mr. Coffee auto-start will not trigger if the machine isn't set up to actually brew — carafe in place, water in the reservoir, and filter/grounds in the basket. Some models also won't auto-start if the brew basket is open.

Pre-timer checklist:

1. Water reservoir filled to the desired cup level
2. Paper filter seated flat in the brew basket (no folds)
3. Coffee grounds measured and in the filter
4. Brew basket closed and clicked into position
5. Carafe placed correctly on the warming plate
6. Machine plugged into a wall outlet (not a power strip that might be switched off)

If any of these aren't done the night before, the timer will fire but the machine won't brew — or will brew a partial amount.

Time: 2 minutes
Cost: Free
Success Rate: 15%
Difficulty: Easy

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Fix 5: Perform a Full Reset on the Programmable Clock

If the timer has been set and unset multiple times, or if the clock display is behaving erratically (wrong time even after setting, digits jumping), the internal clock circuit may need a full reset to clear corrupted settings.

How to do a full reset:

1. Unplug the machine completely
2. Wait 2 full minutes — this drains the capacitors and clears any retained settings
3. Plug back in
4. The clock will show 12:00 and blink — this confirms a clean slate
5. Set the current time using HOUR and MIN
6. Set the auto-brew time using AUTO + HOUR + MIN
7. Confirm AUTO is active (solid light)
8. Leave plugged in and on a stable power source overnight

Time: 5 minutes
Cost: Free
Success Rate: 15%
Difficulty: Easy

After the reset, use the machine normally for one day before relying on the auto-start again — this confirms the clock is holding time correctly between sessions.

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When the Timer Is Truly Broken

If you've correctly set the clock, confirmed AM/PM, enabled AUTO, and set up the machine — and the timer still doesn't fire — the programmable control board has likely failed. This happens on older machines (3+ years) or after exposure to moisture inside the control panel.

Signs of board failure:

• Clock display shows random digits or doesn't respond to button presses
• AUTO light doesn't appear at all
• HOUR or MIN buttons don't respond

Mr. Coffee's budget programmable brewers retail for $25–50 new. Control board repair typically costs more than that in labor alone. Replacement is almost always the more practical option.

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Prevent Timer Failures Going Forward

• Plug directly into the wall — power strips with switches are the most common source of accidental timer resets
• Use a surge protector with battery backup (UPS) — keeps the clock running through brief outages
• Re-check the auto setting after any power outage — it only takes 30 seconds and prevents wasted mornings
• Set a weekly reminder to verify the clock is correct — especially after daylight saving time changes
• Avoid plugging/unplugging for cleaning if you rely on the timer — plug the machine into a dedicated outlet and leave it there

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FAQ

Why did my Mr. Coffee timer stop working after a power outage?

Mr. Coffee programmable brewers have no battery backup for the clock. Any interruption to power — even a brief flicker — resets the clock to 12:00 and erases your auto-brew setting. Re-set the clock and auto-brew time after every power interruption.

My Mr. Coffee timer is set correctly but nothing happens at the scheduled time — why?

Most likely the AUTO function wasn't saved correctly — the AUTO light should be solid (not blinking). Re-press the AUTO button to confirm it's active. Also check that the machine is fully set up to brew: water, filter, grounds, basket closed, carafe in place.

How do I set the auto-brew time on a BVMC-SJX33GT?

Press AUTO, then use HOUR and MIN buttons to set your desired wake time. Watch the AM/PM indicator carefully. Press AUTO again to save — the AUTO light should go solid. Prep the machine with water, grounds, and filter the night before.

Can daylight saving time affect my Mr. Coffee timer?

Yes — because there's no automatic adjustment, your timer will fire one hour early or late after the clock change. Manually update the clock setting on the Mr. Coffee after every daylight saving time switch.

Is there a Mr. Coffee model with a battery backup for the clock?

Standard Mr. Coffee programmable brewers do not include battery backup. If reliable auto-start scheduling is essential to you, consider a Cuisinart or Hamilton Beach model — some higher-end versions include a battery reserve that maintains the clock through brief outages.