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My Ninja Air Fryer is Not Heating up [TRIED & TESTED FIXES]

Air fryers were introduced to add quality to the meals without compromising the health and well-being of the end user. These are electro-mechanical products that may sometimes coupe up issues with their start-up and routine operation.

To resolve the issue, you need to thoroughly understand the problem that you are facing with your Ninja Air Fryer.

Ninja Air Fryer not heating up the food may be due to multiple issues that need the end users’ focus to mitigate the issue once and for all.

Ninja air fryer not heating up – Identify

Identify why the issue popped up and buildup a correct roadmap of the situation that has caused the problem.

Ask yourself simple questions, to assist in recognizing the root cause. This process will escort you on the right path toward the solution!

1. When was the Ninja air fryer last used?

To solve the Ninja Air fryer’s not heating up problem, you need to investigate the equipment’s last usage or healthy operation of the air fryer.

Problem 01: New Ninja air fryer not heating up

If the equipment is new & not heating up in the first couple of attempts, you should immediately stop doing any experimentation.

Solution to Problem 01: 

Your Ninja Air Fryer must be under warranty. You need to instantly contact the nearest sales & service center or call the supplier’s UAN number.

Ninja shall either resolve your issue or provide a healthy replacement.

Problem 02: Stored Air Fryer (Used) not heating up

In case the Ninja Air Fryer had been in operation but was later taken out of service for a long duration (more than 06 months). However, the equipment is not heating up now.

It is very likely that the equipment’s storage conditions have affected the electronic circuitry of the air fryer.

Solution: You shall visit the nearest home appliances repair shop. The Technician will thoroughly air blow, inspect the circuitry, and connections & perform the necessary repair (if required).

Note: Since the Ninja air fryer is equipped with electronic circuitry & power in place. You are advised not to plug in on account of multiple attempts. Also, no undue dismantling of the air fryer is advised

Problem 03: Air fryer stopped working – all of a sudden

If the equipment operated well in the past couple of days, with no indications of compromised operation. In that particular case, you need to further drill down and figure out what went wrong. Continue reading below for solutions!

Solution to Problem 03:

Below is the list of issues if the Ninja Air Fryer is not heating up all of a sudden.

2. Power issues

With no electric power in hand, the air fryer is practically unable to put up the show. There are a series of checks that must be performed to identify the bug.

Power Issues

After a detailed study of the matter, experts from came up with a very simple & precise troubleshooting guide. This must 90% of the time, resolve the end user’s concerns.

S. NoTask DescriptionGuidelines to ensure
1Check the main power supplyThe power supply must be available
2Check breaker or ELCB at the main boardThe breaker should reflect ‘ON’
3Check power socket/ON-OFF button statusPower socket to be ensured ‘ON’
4Check the air fryer PlugThe plug must be physically healthy
5Check the air fryer power cableThe power cable should seem healthy, no overheating symptoms
6Check the cable termination statusThe cable should be properly terminated, ensure not to be loose
7Check the fuseThe fuse should be healthy, try replacing the fuse
8The air fryer plug may be loose in the power socketEnsure the Power plug is held tight in the socket
9Refer to the user manual for Voltage, Phase, and Frequency & compare with actual power (Volts, Phase, Frequency)The power requirements of the product must match the available power

Troubleshooting guide – Power issues, Ninja air fryers not heating up

3. Internal Factors affecting, heating up

At times, the electric power required to operate the device would be perfectly fine. However, the Ninja air fryer’s internal issues trigger the not heating up problem.

There are certain probabilities, with indications that you need to consider to restore your Ninja Air fryer for not heating up.

i. Overheated device

Ninja air fryers may get overheated if they are operated above the designed conditions & would definitely malfunction.

When you overcrowd the air fryer & tightly pack the basket with the raw food, air circulation inside the air fryer doesn’t take place. This results in overheating of the fan and heater section if operated for a prolonged period of time.

Overheated scenario

In the second case, if the air fryer isn’t properly cleaned after cooking food, grains of the meal may fall on the coil & start depositing. This may eventually result in overheating of the coil since it will not be able to transfer the heat.

Therefore the Ninja air fryer either has the fan, coil, or electronic controls malfunctioning, which would certainly lead to the equipment malfunction. Thus causing the Ninja air fryer not to heat up the food.

Air Fryer Coil – Symptoms of overheating and deposition

You need to visit your nearest services center to diagnose the issue and perform necessary replacements of the malfunctioning parts.

ii. Improper Assembly

There are certain protections that modern air fryers are equipped with for the safety of the equipment and the end users.

Air fryers are disassembled for cleaning and if inappropriately assembled, the inherent safety feature may not be allowing the air fryer to turn on.

In this particular case, you need to revisit the assembly and identify what could have been missed during the assembly of the unit.

Some air fryers may need to reset once the assembly is completed.

iii. Programming issue

Modern Ninja air fryers are programmed to operate under certain set conditions. It is quite possible during cleaning that the electronic circuitry, which mainly consists of a controller is exposed to undesired conditions & gets malfunctions.

You either need to reset the Ninja air fryer through the factory reset knob or visit the nearest service provider to get the controller re-programmed or in the worst-case scenario replaced.

iv. Faulty display

With the digital display in place, it is certain that the user is provided with ease of operation, however, there are certain cons to this. The Ninja air fryer may be in a turned-on condition, however, the display may be malfunctioning.

In that case, you need to factory reset the device and make an attempt to start.

Faulty Display

If the display is not responding, you should visit your nearest customer service center to look into the display function. It may either have a loose connection or an IC may have malfunctioned.

Get the issue rectified and the air fryer would be restored to normal.

v. Permissive to start

‘Permissive to start’ refers to the fact that air fryers are equipped with certain checkpoints that include proper inthe sertion of the basket, internals, and health condition of the internal fuse.

To ensure the Ninja air fryer’s Heater functions properly, vendor-recommended procedures and guidelines shall be followed. This shall resolve the turning-on issue

vi. Chocked Vent

A choked vent on the Ninja air fryer can cause the air to remain inside the air fryer thus not allowing heat dissipation. This can cause the air fryer to act and lower the heating element’s operation. However, the airflow restriction will not allow food to elevate the body temp.

This chocked vent needs to be cleaned thoroughly and care taken to ensure the air fryer is kept in a spacious area to allow adequate ventilation.

vii. Short circuit

With so many electronics involved in modern air fryers, the certainty of electronic malfunction cannot be nullified. This may be due to an incorrect or non-standard power source that the air fryer is connected to.

Another reason for shortcircuiting is due to overheating of the device. To understand if the device is shortcircuiting, the display would present incorrect numbers or blink in a bizarre fashion.

To rectify this issue, you need to contact the services shop for a detailed inspection of your device and suggest a solution.

viii. Heater malfunctioned

One of the safety features of the devices is heater functionality detection. If the heater has malfunctioned due to any reason, the device may not be able to heat up the food.

A heater malfunction can be identified by visual inspection of the device. The device will not be able to elevate the temp of internal air.

ix. Fan malfunctioned

The fan in a Ninja air fryer acts as the equipment’s heart, that circulates air around the raw food source.

Malfunctioning of the fan can be identified by resetting the air fryer & listening to the sound of the air fryer. A silent air fryer means the fan is not operating

The air fryer will eventually not heat up the food and can go to the turn-off mode due to the safety features of the device.


Ninja air fryers are renowned and the best in the class, however, there are instances where the device copes with issues in operation.

This may be either due to the mishandling of the equipment or certain other external factors. One such issue can be the heating up problem, which is common for other air fryers too

Identifying the actual root cause and pinpointing to rectify will help resolve the issue once and for all.

Problematic heater, fan malfunction, choked vent etc can cause the equipment not to heat up your food properly.

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