1. Introduktion
The hygger Upgrade Ceramic Aquarium Heater is designed to maintain a stable water temperature in freshwater and saltwater aquariums. This manual provides instructions for the safe installation, operation, and maintenance of your 100W heater. Please read this manual thoroughly before use to ensure proper function and safety.

Billede 1.1: Overview of the hygger 100W Ceramic Aquarium Heater and its components.
2. Produktfunktioner
- Holdbar keramisk konstruktion: Made from explosion-proof ceramic material and high-temperature resistant nickel-chromium heating wire, ensuring thermal stability and a long service life. Features a high-temperature resistant ABS shell to protect aquatic life.
- Automatic Constant Temperature: Maintains water temperature with 1°F accuracy. The heater stops heating when the set temperature is reached and restarts if the temperature drops by 1°F.
- Hukommelsesfunktion: Retains the last set temperature after a power interruption, eliminating the need for manual reset.
- Sikkerhedsbeskyttelse:
- Out of Water Protection: Automatically stops heating and displays "E01" if the heater is not fully submerged.
- Overophedningsbeskyttelse: Automatically stops heating and displays "HH" if the water temperature exceeds 95°F.
- Digital LED Display & External Controller: Features a built-in temperature sensor for real-time water temperature display. An external controller allows temperature adjustment from 64°F to 95°F without immersing hands in the water. An indicator light shows heating status (red for heating, off for constant temperature).
- Alsidig anvendelse: The 100W model is suitable for 5-20 gallon freshwater or saltwater tanks, including fish tanks, turtle tanks, and small ponds.
- Sikker montering: Equipped with strong suction cups for stable placement within the aquarium.

Image 2.1: Benefits of the ceramic heating material, highlighting efficiency, safety, and durability.
3. Sikkerhedsinstruktioner
Read all safety warnings and instructions before using this product to prevent injury or damage.
- Always ensure the heater is fully submerged in water before connecting it to power. Operating the heater out of water will trigger the "E01" error and can cause damage.
- Do not place the heater directly in sand or mud, as this can lead to inaccurate temperature readings and inefficient heating.
- Before performing any water changes or cleaning the aquarium, always unplug the heater from the power source.
- Allow the heater to cool down for at least 15-30 minutes after unplugging before removing it from the water. This prevents thermal shock and potential burns.
- Do not operate the heater if the power cord or plug is damaged. Contact customer support for assistance.
- Keep the external controller dry and away from water splashes.
- Ensure the heater's wattage is appropriate for your tank size. The 100W model is suitable for 5-20 gallon tanks.
- Dette apparat er kun beregnet til indendørs brug.

Image 3.1: Visual representation of the anti-dry burning (E01) and over-temperature (HH) protection features.
4. Pakkens indhold
Kontroller, at alle varer er til stede og i god stand, når du åbner pakken:
- 1x hygger Ceramic Aquarium Heater (100W)
- 1x External Temperature Controller
- 2x sugekopper
5. Opsætning
- Pakker ud: Fjern forsigtigt alle komponenter fra emballagen.
- Placering: Position the heater vertically or horizontally inside the aquarium. Ensure it is fully submerged in water. Avoid placing it directly in sand or mud, as this can affect temperature accuracy.
- Sikker: Use the provided suction cups to firmly attach the heater to the inner wall of the aquarium. Ensure it is stable and will not float or move.
- Forbinde: Plug the heater's power cord into a suitable electrical outlet.

Image 5.1: Heater placement options: vertically or horizontally, always fully submerged.

Image 5.2: Important installation notes: fully submerge, avoid sand/mud, and cool down before removal.
6. Betjeningsvejledning
- Tænd: Once plugged in, the heater's LED display will show the current real-time water temperature.
- Indstil temperatur:
- Press the "SET" button on the external controller. The display will flash the current set temperature.
- Press the "SET" button repeatedly to adjust the desired temperature. The temperature range is 64°F to 95°F (18°C to 35°C). Each press increases the temperature by 1°F.
- After selecting the desired temperature, stop pressing the button. The display will flash a few times and then return to showing the real-time water temperature. The new setting is saved automatically.
- Opvarmningsindikator: A red indicator light on the heater will illuminate when the unit is actively heating. The light will turn off when the set temperature is reached and maintained.
- Overvågning: The digital LED display continuously shows the real-time water temperature, allowing for easy monitoring.

Image 6.1: Details of the external controller and temperature setting mechanism.

Image 6.2: The heater's power-off memory function, which saves the last temperature setting.
7. Vedligeholdelse
Regular maintenance ensures the longevity and efficient operation of your aquarium heater.
- Rensning: Regularly inspect the heater for algae or mineral buildup.
- Sikkerhed først: Before cleaning or performing any aquarium maintenance, always unplug the heater and allow it to cool in the water for 15-30 minutes. This prevents thermal shock to the heater and protects you from potential burns.
- Skånsom rengøring: Use a soft cloth or brush to gently clean the heater's surface. Do not use harsh chemicals, abrasive materials, or sharp objects that could scratch or damage the heater.
- Nedsænkningstjek: Ensure the heater remains fully submerged at all times during operation. Low water levels can trigger the "E01" error and potentially damage the unit.
8. Fejlfinding
If you encounter issues with your hygger aquarium heater, refer to the following troubleshooting guide:
- "E01" Error Code: This indicates the heater is not fully submerged in water.
- Løsning: Immediately unplug the heater. Ensure the heater is completely underwater. Wait a few minutes, then plug it back in.
- "HH" Error Code: This indicates the water temperature has exceeded 95°F (35°C), triggering the overheating protection.
- Løsning: Unplug the heater. Check the aquarium's water temperature with an external thermometer. Allow the water to cool if necessary. Re-evaluate the set temperature. Plug the heater back in once the water temperature is safe.
- Varmelegemet varmer ikke op:
- Check if the power plug is securely connected to the outlet.
- Kontroller, at den indstillede temperatur er højere end den aktuelle vandtemperatur.
- Ensure the heater is fully submerged in water.
- Unøjagtig temperaturaflæsning:
- Ensure the heater is not placed in sand or mud, which can insulate it and affect readings.
- Verify the heater is positioned in an area with good water circulation to ensure even temperature distribution.
- Compare the heater's reading with a separate, reliable aquarium thermometer to confirm accuracy.
9. Specifikationer
| Attribut | Detalje |
|---|---|
| Model | HG156 |
| Magt | 100W |
| Temperaturområde | 18°C - 35°C |
| Nøjagtighed | ±1°F |
| Materiale | Ceramic heating rod, ABS shell |
| Dimensions (Heater Body) | 1.4 x 1.4 x 7.7 tommer |
| Vægt | 1.06 pund |
| Passende tankstørrelse | 5-20 gallons (freshwater or saltwater) |
| Inkluderede komponenter | Heater, External Controller |

Image 9.1: Guide for choosing the correct heater wattage based on tank size.

Billede 9.2: Eks.amples of the heater's application in different aquatic environments.
10. Garanti og support
- Garanti: This hygger product is covered by a 2-Year Manufacturer Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
- Støtte: For technical assistance, troubleshooting, or warranty claims, please contact hygger customer support. Refer to the product packaging or the official hygger website for the most current contact information. Please have your model number (HG156) and proof of purchase ready when contacting support.





