Common faults and maintenance methods of air heaters

Widely used in various industrial and commercial environments, air heaters are favoured for their efficient heating capacity and low maintenance costs. However, after prolonged use, air heaters may experience some common malfunctions. Understanding these malfunctions and performing timely repairs and maintenance can greatly extend the service life of the heater and improve efficiency. This article will introduce the common failures of air heaters and their maintenance methods.

1. Air heater not heating

fault phenomenon: The air heater starts but fails to provide heat, or the heating is ineffective.

Possible causes::

• Power supply problems: Unstable power access or power failure.
• Damaged heating element: Heating elements are aged, disconnected or burnt out.
• Malfunctioning thermostat: The thermostat is not working properly and has failed to activate the heating function.

cure::

• Check power connections to ensure stable voltage.
• If the heating element is faulty, it should be replaced with a new one.
• Check the thermostat and control panel to make sure they are working properly. If they are faulty, replace them promptly.

2. Uneven heating of the heater

fault phenomenon: Uneven temperature during heating of air heater, overheating or not heating in certain areas.

Possible causes::

• Uneven air flow: The air inlet or outlet is blocked, resulting in uneven air flow.
• Improperly positioned heating elements: Heating elements may be improperly installed, resulting in uneven heat distribution.
• clogged pipe: The air inlet and outlet ducts to the heater may be clogged with debris or dust, affecting airflow.

cure::

• Check the air inlet and outlet vents to make sure there are no obstructions to ensure smooth airflow.
• Check the heating elements to make sure they are in place and working properly.
• Periodically clean heater ducts to remove dust and debris to ensure smooth airflow.

3. Air heater odour

fault phenomenon: Air heater emits an odour or burnt taste when operating.

Possible causes::

• excessive dust accumulation: A large amount of dust accumulates inside the heater, causing the heating element to overheat and emit an odour.
• Ageing of electrical components: Electrical components may have deteriorated due to prolonged use and emit an unusual odour.
• Material issues: Some parts (e.g. plastic parts) may release harmful gases due to overheating during the heating process.

cure::

• Regularly clean the inside of the air heater, especially near the heating elements.
• Check the electrical components to make sure they are not damaged or deteriorated and replace them if necessary.
• Check all parts in the equipment to ensure that no flammable materials are used and replace any unusual materials.

4. Excessive air heater noise

fault phenomenon: The heater emits a high level of noise when it is in operation, which affects the comfort of the environment.

Possible causes::

• fan failure: The fan may not run smoothly due to damaged bearings or excessive dust accumulation.
• Too much or too little air flow: Too much or too little air flow can cause abnormal fan noise.
• Loose heating element: Heating elements that are not mounted securely may also cause vibration and generate noise.

cure::

• Check the fan to make sure it is functioning properly and clean the fan regularly.
• Adjust the air flow to ensure that it meets the criteria for the use of the equipment.
• Check that the heating element is mounted securely and retighten if loose.

5. Air heater leakage

fault phenomenon: Leakage from air heater may present a risk of electric shock.

Possible causes::

• Aged or damaged cables: Damage or deterioration of the cable sheath, resulting in current leakage.
• Poor contact of electrical components: Loose electrical connections, resulting in leakage.
• Poor equipment grounding: Poor grounding is a common cause of electrical leakage.

cure::

• Check the cable sheath to ensure that it is not torn or deteriorated and replace it immediately if it is faulty.
• Check the electrical connections to ensure that all connectors are tight and making good contact.
• Ensure that the equipment is properly grounded to prevent electrical leakage from occurring.

6. The importance of regular maintenance

The maintenance of air heaters is the key to ensure the long-term stable operation of the equipment. Regular inspection and maintenance can effectively reduce the chance of failure and improve the overall performance of the equipment. Routine maintenance includes:

• Regular Cleaning: Periodically clean the air inlet and outlet ducts of the heater to prevent dust and dirt build-up.
• CHECK HEATING ELEMENTS: Check the condition of the heating elements to make sure there is no damage or deterioration.
• Keep electrical components stable: Make sure electrical components and wiring are not loose, corroded or deteriorated.
• Regularly check safety devices: Ensure that safety valves, overload protection devices, etc. of the equipment are working properly.

7. summaries

Common failures of air heaters include no heating, uneven heating, odour, excessive noise and power leakage. These failures can be effectively avoided through regular inspection and maintenance, thus extending the service life of the equipment and improving work efficiency. Following the correct maintenance methods can not only ensure the safe operation of the heater, but also reduce energy consumption and improve production efficiency.

Our company can non-standard custom products, click the menu bar to contact us to customise, you can also refer to the first!product pageAppreciate our company's products oh!

Recommended Reading:

Difference between Air Heater and Other Types of Heating Equipment - Jiangsu Ruiyuan Heating Equipment Technology Co.