Setup: Daewoo HEA1 139 Flat or Upright Fan Heater User Manual

Content

Overview

The HEA1 139 Flat or Upright Fan Heater is a portable electric fan heater designed for supplementary, secondary, or temporary indoor heating. It provides two heat levels, adjustable thermostat control, and a fan-only mode for cool air circulation.

The heater is supplied ready to use without assembly. It may be positioned horizontally on its inset mounting position when stored or handled, but it must only be operated in the upright position.

Specifications

Model: HEA1 139
Rated voltage: 220–240 V AC, 50 Hz
Low heat output: 1,000 W
Rated power range: 1,800–2,000 W
Maximum continuous heat output: 2,000 W
Seasonal space-heating energy efficiency in active mode: 85.0%
Dimensions: 245 mm high × 240 mm wide × 120 mm deep
Weight: 1.1 kg
Protection class: Class II double insulated

Detailed Description

The HEA1 139 uses a fan-assisted heating element to draw room air through the air intake, warm it, and discharge it through the air outlet. A mechanical thermostat cycles the heating function on and off to help maintain the selected room temperature.

The main controls are located on the front of the unit. The combined On/Off/Fan/Heat switch selects the operating mode, while the thermostat adjusts the target temperature. The indicator illuminates while the heater is actively operating and switches on and off as the thermostat maintains the selected temperature.

Air outlet: Releases heated or circulated air.
On/Off/Fan/Heat switch: Selects off, fan-only, low-heat, or high-heat operation.
Indicator: Shows when the heating system is operating or cycling to maintain temperature.
Thermostat: Adjusts the desired room temperature.
Air intake: Draws room air into the heater and must remain unobstructed.
Inset horizontal mounting position: Identifies the flat position shown for the unit; operation is restricted to the upright position.

Safety

Read all operating instructions before using the HEA1 139 Flat or Upright Fan Heater. Incorrect placement, restricted airflow, or damaged electrical components can create a fire, burn, or electric-shock hazard.

Operate the heater only in the upright position on a solid, level, non-flammable surface such as stone, slate, ceramic, or concrete.
Do not cover the heater or block the air intake and outlet.
Keep curtains, textiles, soft furnishings, hearth rugs, and other flammable materials at least 1 metre from the air outlet.
Do not place the heater on carpet, rugs, or other soft floor coverings.
Do not position the heater directly below an electrical socket.
Connect the heater only to a mains supply matching the voltage on its data plate.
Do not use an extension cable with this heater.
Keep the heater away from baths, showers, swimming pools, water, flammable materials, and high-pressure containers.
Do not use the appliance outdoors, in garages, stables, wooden sheds, or areas where flammable gases or dust may develop.
Never immerse the heater, plug, or power cord in water or another liquid.
Do not push objects into any opening.
Keep children under 3 years away unless continuously supervised.
Children aged 3 to under 8 may switch the heater on or off only when it is correctly positioned and they are supervised or instructed. They must not plug in, adjust, clean, or maintain it.
Children aged 8 and above and people with reduced physical, sensory, or mental abilities may use the heater only with suitable supervision or instruction.
Some surfaces become very hot during operation. Take particular care around children and vulnerable people.
Do not leave the heater unattended while operating or connected to the mains.
Do not operate the unit if the plug or cord is damaged, or if the heater has malfunctioned, been dropped, or suffered other damage.
Keep the power cord away from sharp edges, hot surfaces, carpets, and rugs. Do not allow it to hang where it can be pulled.
Unplug the heater after every use by gripping the plug rather than pulling the cord.
Allow the heater to cool completely before moving or storing it.
Use the appliance only for domestic heating and not for industrial purposes.
Do not use attachments or accessories other than those supplied or recommended for the appliance.
Electrical repairs must be performed by qualified personnel.

A slight odour or small amount of smoke may occur during the first few minutes of initial use. This can result from the protective coating on the heating elements and should quickly disappear.

Setup and Operation

Before first use

Check the heater for damage and confirm that the supplied parts are present.
Remove and responsibly recycle or dispose of the packaging.
Place the heater upright on a solid, level, non-flammable surface.
Make sure the On/Off/Fan/Heat switch is set to the off position marked O.
Check that the local mains voltage matches the rating on the heater data plate.

Low-heat operation

Insert the mains plug into a suitable wall socket.
Turn the On/Off/Fan/Heat switch to the low-heat setting.
Adjust the thermostat clockwise to raise the selected temperature or anticlockwise to lower it.

High-heat operation

Connect the heater to the mains with the control set to off.
Turn the On/Off/Fan/Heat switch to the high-heat setting.
Use the thermostat to select the desired room temperature.

Setting the thermostat

Select the required heat level.
Turn the thermostat fully clockwise and allow the room to warm.
When the desired temperature is reached, turn the thermostat anticlockwise until the heater just switches off.
Turn the thermostat slightly clockwise again. The heater will then cycle as needed to maintain the selected temperature.
Fine-tune the control gradually if the room becomes warmer or cooler than preferred.

The indicator may illuminate and go out repeatedly while the thermostat maintains the selected temperature. This cycling is normal.

Fan-only mode

Turn the On/Off/Fan/Heat switch to the fan-only position for cool-air circulation without active heating. The thermostat must be turned fully clockwise for the fan-only function to operate.

Switching off

Return the On/Off/Fan/Heat switch to the O position, then unplug the heater from the mains. Do not leave the appliance connected when it is not in use.

Cleaning and Maintenance

Switch off and unplug the heater before cleaning.
Allow the unit to cool completely.
Wipe the exterior with a clean, damp cloth.
Do not use harsh, abrasive, or solvent-based cleaners.
Never submerge any part of the heater in water or another liquid.
Keep the air intake and outlet clear of dust, furnishings, and other obstructions.
Do not wrap the mains cable around the appliance.
Store the heater only after it has cooled fully.

Troubleshooting

The heater does not operate

Confirm that the mains plug is fully inserted into the wall socket.
Check that the On/Off/Fan/Heat switch is not in the off position.
Check that the thermostat is set high enough to request heat.
Inspect the power cord and plug for visible damage. Do not use the heater if damage is present.

The fan does not operate in fan-only mode

Confirm that the switch is set to the fan-only position.
Turn the thermostat fully clockwise, as required for fan-only operation.

The heater stops during use

The unit includes a built-in safety cut-out. If it activates, switch off and unplug the heater. Check that the air intake is not blocked or covered, then leave the appliance to cool and reset for one hour before reconnecting it.

The room is not warming sufficiently

Check that the high-heat setting is selected when maximum output is required.
Ensure the air intake and outlet are unobstructed.
Check that curtains, furniture, rugs, or other items are not too close to the heater.
Adjust the thermostat gradually after the room has had time to warm.

Recycling and Disposal

Separate paper and cardboard packaging for paper recycling, and place recyclable plastics in the appropriate plastics collection service. Do not dispose of the heater with ordinary household waste or send it to landfill. Waste electrical equipment should be taken to a suitable recycling facility in accordance with local requirements.

Mains Plug Safety

If the non-rewireable plug fuse requires replacement, use an ASTA-approved fuse conforming to BS 1362 with the same rating. Never use a plug with its fuse cover missing.

If the plug must be removed, disconnect the heater from the mains first, cut off the plug, and dispose of it safely. Never reuse the removed plug or insert it into a socket because it may cause electric shock.

Warranty

The product includes a standard one-year guarantee from the original purchase date when proof of purchase is available. An additional two-year warranty may be available when the product is registered within 28 days of purchase, subject to the stated warranty conditions.

The heater must be installed and operated according to the instructions.
Coverage is for domestic use only.
Normal wear, misuse, damage, and consumable parts are excluded.
Inexpert repairs or use of non-approved parts or accessories can invalidate coverage.
The warranty applies within the United Kingdom and Ireland.
Replacement parts and accessories are covered for one year from the purchase date.

Pros & Cons

Pros

Compact and lightweight design for portable indoor heating.
Low- and high-heat settings provide flexible output control.
Adjustable mechanical thermostat helps maintain room temperature.
Fan-only mode provides air circulation without active heating.
Built-in safety cut-out helps protect against overheating.

Cons

It is intended for supplementary or temporary heating rather than permanent primary heating.
The heater must remain upright during operation.
Airflow must be kept clear, requiring careful placement away from rugs, curtains, and furnishings.
No extension cable may be used with the appliance.

PDF

Faqs

How do I set up the HEA1 139 Flat or Upright Fan Heater before first use?

Remove the heater from its packaging and check that the housing, power cord, plug, and controls are undamaged. No assembly or tools are required. Place the unit upright on a solid, level, non-flammable surface such as ceramic, stone, slate, or concrete. Keep the air outlet clear and position the heater away from curtains, textiles, furniture, and other flammable materials. Confirm that the voltage on the data plate matches the local mains supply before plugging it in.

Can the HEA1 139 fan heater be used flat or horizontally?

Despite the product name, the HEA1 139 must only be operated in its upright position. Do not lay it on its side, use it horizontally, or place it on a carpet, rug, or other soft floor covering. A stable upright position helps maintain airflow and reduces overheating risk. Use a solid, level, non-flammable surface, and keep hearth rugs, soft furnishings, and objects away from the front air outlet.

How do I use the low- and high-heat settings on the HEA1 139?

First make sure the On/Off/Fan/Heat switch is set to O, then plug the heater directly into a suitable mains socket. Turn the switch to the low-heat position for approximately 1000W or to the high-heat position for approximately 2000W. Adjust the thermostat clockwise to raise the target temperature and anticlockwise to lower it. The indicator may cycle on and off while the thermostat maintains the selected room temperature.

How do I use the HEA1 139 in fan-only mode?

For cool-air circulation without heat, turn the On/Off/Fan/Heat switch to the fan-only position. The thermostat must be rotated fully clockwise for the fan-only function to operate. Keep the heater upright and make sure the air intake and outlet are unobstructed. Fan-only mode does not replace normal ventilation, so avoid using the appliance in damp locations or near a bath, shower, or swimming pool.

Why does the HEA1 139 indicator switch on and off while heating?

The indicator cycling on and off is normal. It shows that the thermostat is controlling the heating element to maintain the selected room temperature rather than running continuously. To set the thermostat, begin with the desired heat setting and turn the thermostat fully clockwise while the room warms. When the room feels comfortable, turn it anticlockwise until the heater clicks off, then slightly clockwise to maintain that temperature.

What should I do if the HEA1 139 stops working unexpectedly?

Switch the heater off, unplug it, and allow it to cool for at least one hour before checking it. Inspect the air intake and outlet for coverings, dust, textiles, or other obstructions, and make sure the heater is standing upright with clear airflow. Do not restart it while blocked or covered. If it still fails to operate after cooling and clearing the airflow, do not use it if the cord, plug, or housing shows damage.

How should I clean the HEA1 139 fan heater safely?

Turn the controls to O, unplug the heater from the mains, and allow it to cool completely before cleaning. Wipe the exterior with a clean, slightly damp cloth. Do not use abrasive or harsh cleaners, push objects into openings, or immerse any part of the appliance in water. Keep the air intake and outlet free from obstructions. Never wrap the mains cable around the heater, and reconnect it only after all surfaces are dry.

What safety clearances and electrical precautions apply to the HEA1 139?

Keep curtains, clothing, paper, furniture, and other flammable materials at least 1 metre from the air outlet, and never cover the heater. Do not position it immediately below a socket, use an extension cable, or run the cord under rugs or carpets. Never operate the unit outdoors, unattended, or near water. Unplug it after every use by gripping the plug rather than pulling the cable, and allow it to cool before storage.