How to change an air fryer from celsius to fahrenheit usually takes one long-press on a temp button, or a hold on temp up + temp down.
If your air fryer suddenly shows 180° when you expected 350°, it’s not broken. It’s just speaking Celsius. The fix is often a hidden button combo that flips the temperature unit.
This guide helps you switch the display to Fahrenheit, confirm it stuck, and keep cooking without guessing. It also shows what to do when your model won’t toggle units, or the screen has no unit icon at all.
Changing An Air Fryer From Celsius To Fahrenheit By Control Type
Air fryers don’t share one universal shortcut. Still, most fall into a few control styles. Start with the style that matches your panel, then try the exact combo listed for your brand in the manual.
| Control Style Or Brand Line | Common Unit Toggle | What To Watch For |
|---|---|---|
| Philips Airfryer (many digital models) | Hold Temp Up + Temp Down together ~10 sec | Look for °F/°C change after a beep or blink |
| Cosori digital air fryers | Press and hold TEMP for ~3 sec | Some models use TEMP + a secondary key |
| Instant Vortex / Instant air fryers | Hold Temp + and Temp − together for a few sec | Do it while idle, not mid-cook |
| Ninja air fryer ovens with TEMP/DARKNESS | Press and hold TEMP/DARKNESS ~5 sec | Unit must be out of cook mode |
| Chefman / “Time/Temp” keypads | Press and hold TIME/TEMP | Unit may switch only after the display flashes |
| Touchscreen with Temp and Time on one key | Tap to select Temp, then long-press same key | Temp digits often blink before the hold works |
| Dial + button combo panels | Long-press the temp dial, or dial + cancel | Some dial units are locked to one scale |
| App-linked models | Unit setting inside the app or device menu | Check phone region and app settings |
How To Change An Air Fryer From Celsius To Fahrenheit
Most air fryers hide the toggle behind a long-press so it doesn’t change by accident. Do this once while the unit is idle and cool.
Step 1: Confirm You’re Seeing Celsius
Quick check: 180–200 is a normal Celsius range for air frying. In Fahrenheit, most recipes sit around 350–400. If your screen shows numbers like 160, 180, or 200 with no “F,” you’re likely in Celsius.
Also check your basket preheat prompts. Some units flash a tiny “°C” or “°F” near the digits, then hide it once cooking starts.
Step 2: Put The Air Fryer In A Safe State
- Stop cooking and let the fan slow down.
- Return to the home screen or standby screen.
- Keep the basket fully seated so the panel stays responsive.
If your model keeps beeping at you, unplug it for 30 seconds, plug it back in, and try again with clean, dry hands.
Step 3: Try The Two Most Common Toggle Combos
If you don’t know your exact model yet, these two are the safest first tries:
- Temp Up + Temp Down together: press both arrows at the same time and hold 5–10 seconds.
- Temp key long-press: tap TEMP once so the temperature digits blink, then press and hold TEMP 3–5 seconds.
When it works, you’ll see the unit icon switch, the digits jump to the new scale, or the screen will beep once.
Step 4: Lock It In With A Quick Test
Set a target you know in both scales, like 400°F / 205°C. Start a one-minute air fry, then cancel. Power the unit off, wait five seconds, and power it back on.
If it comes back in Fahrenheit, you’re done. If it returns to Celsius, you may have a “demo” mode, a reset issue, or a panel that only saves units after a full power-down.
Where The Right Button Combo Lives On Your Exact Model
The fastest path is your manual. Brand lines often reuse names across different panels, so model number beats marketing name every time.
On Philips, the manual for many digital Airfryer models states you can swap units by holding the temperature up and down buttons together for about 10 seconds. You can verify that on Philips’ own PDF manual: Philips Airfryer temperature unit change.
For Cosori, the brand hosts model-specific manuals in one place. Use the search box, then check the “More Functions” or “Settings” pages for “Switching Temperature Units”: COSORI user manuals.
How To Find Your Model Number Fast
- Flip the unit and read the rating label near the cord.
- Check the back panel on toaster-oven style air fryers.
- Search your order email for a code like “AF101,” “CP158,” or “Vortex Plus.”
Once you have the model, search the manual for “Celsius,” “Fahrenheit,” “unit,” or “°C/°F.” Those terms usually land on the one page you need.
Fixes When The Unit Won’t Switch
Sometimes the long-press does nothing. That can be a timing issue, a locked setting, or a panel that needs a reset.
Try The Same Combo While The Temp Digits Blink
On many touch panels, the hold only registers after you’ve selected temperature mode. Tap TEMP once so the temperature digits blink, then do the hold again.
Check For Child Lock Or Panel Lock
If your air fryer has a lock icon, unlock it first. A locked panel may still let you start presets while blocking settings changes.
Look for a key symbol, or a “Lock” button you hold for a few seconds. If you don’t see any icon, the lock might show only when you press the same spot twice.
Do A Soft Reset Without Losing Your Settings
Unplug the unit for 60 seconds. While it’s unplugged, press the power button once to drain leftover charge. Plug back in and retry the toggle.
Know When Your Model Is Single-Scale
A few air fryers are built for one region and don’t offer a unit toggle on the panel. You’ll notice this when:
- There are no temperature arrows, only presets.
- The manual never mentions °F/°C switching.
- The display shows only “°C” printed on the plastic, not on the screen.
In that case, use a conversion cheat sheet and stick to Celsius recipes for that model.
Spotting The Unit On Dials And Tiny Screens
On dial models, the unit may be printed on the faceplate instead of shown on the screen. If the temp knob is marked 80–200, that’s Celsius. If it’s marked 175–400, that’s Fahrenheit. Some toaster-oven style units show the unit only for a second when you turn the dial, then hide it.
If your screen has no unit icon, use the max temperature as a clue. A cap near 200–210 points to Celsius. A cap near 400–450 points to Fahrenheit. Once you know the scale, set temps in that scale and ignore recipe “numbers” until you convert them.
If your air fryer resets after unplugging, toggle units again, then run a 1-minute test so it saves for next cook.
Common Mistakes That Make The Toggle Fail
These issues waste time and make the shortcut feel broken.
Holding The Wrong Button Pair
Some panels label TEMP but the actual toggle is hidden under TEMP/TIME or under the arrows. If your unit has both a TEMP key and temp arrows, the arrows are often the real switch.
Trying Mid-Cook
Many air fryers block unit changes during an active cook cycle. Cancel the cook, return to idle, then hold the combo.
Confusing The Display Jump
When you switch scales, the digits can jump to a default like 180°C or 360°F. That jump is the hint it worked. If you keep holding and the screen keeps cycling, release once you see the unit icon change.
What Celsius And Fahrenheit Mean For Air Fryer Results
The fan and heater don’t care which unit you pick. Your recipes do. If you set 200°C thinking it’s 200°F, food stays pale and soft. If you set 400°F thinking it’s 400°C, the unit will cap out, and you’ll still be cooking too hot.
Air fryer heating is also quick. A small unit can swing 10–20 degrees as the heater cycles. So, when converting recipes, a clean starting point matters more than chasing a perfect digit.
Celsius To Fahrenheit Cheat Sheet For Everyday Air Frying
Use this as a fast backup when your air fryer is locked to Celsius, or when a recipe is written in the other scale.
| Celsius | Fahrenheit | Typical Use |
|---|---|---|
| 160°C | 320°F | Reheating pastries, softer veg |
| 170°C | 338°F | Fish fillets, gentle bake items |
| 175°C | 347°F | Frozen snacks that brown fast |
| 180°C | 356°F | Chicken nuggets, fries start |
| 185°C | 365°F | Wings mid-cook, crisping |
| 190°C | 374°F | Most frozen fries, breaded foods |
| 195°C | 383°F | Pork chops, thicker veg |
| 200°C | 392°F | Wings finish, roasted veg |
| 205°C | 401°F | Quick crisp finish, small batches |
| 210°C | 410°F | Extra browning on sturdy foods |
Getting Consistent Results After You Switch Units
Once the display shows Fahrenheit, it’s tempting to jump back into a recipe at full blast. A quick calibration cook helps you trust the new numbers.
Run A One-Food Test Batch
Pick something forgiving, like frozen fries or breaded chicken. Cook one small basket at a known setting, like 400°F for 10 minutes, shaking once halfway.
If it matches your usual results, your unit scale and your instincts are back in sync. If it browns faster than normal, your air fryer may run hot, so drop the set temp by 10–15°F next time.
Use The Same Preheat Habit Every Time
Some units preheat automatically on presets. Others don’t. If you always cook from cold, keep doing that. If you always preheat, keep doing that. Mixing habits makes it feel like the unit change altered performance.
Write A Tiny Note On The Handle
A piece of masking tape that says “°F” or “°C” saves you from a sleepy misread. It also helps anyone else in your kitchen avoid a wrong setting.
When You Should Leave The Air Fryer In Celsius
Switching to Fahrenheit is handy if most of your recipes are in Fahrenheit. Still, Celsius can be nicer for small adjustments because each step can map cleanly to 5°C or 10°C.
If your cookbooks, package directions, and apps are mostly Celsius, it’s fine to keep the air fryer in Celsius and use the cheat sheet when a Fahrenheit recipe pops up.
A Quick Recap You Can Follow Next Time
If you forget the shortcut, start idle, tap TEMP so the digits blink, then hold TEMP or hold Temp Up + Temp Down for 5–10 seconds. That’s the core of how to change an air fryer from celsius to fahrenheit on most digital panels.
When it doesn’t work, grab the model number, scan the manual for °C/°F, and check for a lock icon. Once the display stays in Fahrenheit after a power cycle, you’re set.