1. Introduction
Thank you for choosing the ERAARK Submersible Aquarium Heater. This manual provides essential information for the safe and efficient operation of your 50W or 100W heater. Designed for both freshwater and saltwater aquariums, this heater maintains a constant water temperature of 77°F (25°C), ensuring a stable environment for your aquatic life. It features dual temperature control and an automatic power-off function for enhanced safety.
2. Safety Information
- Always ensure the heater is fully submerged in water before connecting it to power. Operating the heater out of water will cause it to automatically power off due to the built-in overheating protection.
- Do not touch the heater immediately after unplugging it, as it may still be hot. Allow it to cool down before handling.
- Before performing any maintenance on your aquarium, such as water changes or cleaning, always unplug the heater and all other electrical equipment.
- Inspect the power cord and heater for any damage before each use. Do not use if damaged.
- Keep out of reach of children.
- This heater is designed for indoor aquarium use only.
3. Product Overview
The ERAARK submersible aquarium heater is constructed with durable and safe materials to ensure longevity and reliable performance. It is available in 50W and 100W variants.
Figure 3.1: ERAARK 100W Submersible Aquarium Heater showing its dimensions (6.6 inches length, 1.3 inches diameter) and 5.5 ft power cord. Suitable for 5-15 gallon and 5-20 gallon fish tanks depending on wattage.
Figure 3.2: Side view of the ERAARK 100W Submersible Aquarium Heater, highlighting its compact design and protective casing.
Figure 3.3: Internal components and materials of the ERAARK aquarium heater. Features include a heat-resistant PPA protective shell, nickel-chromium heating wire, non-corrosive quartz glass, and strong suction cups for mounting.
Figure 3.4: Comparison of the ERAARK 50W and 100W submersible aquarium heater models, illustrating their similar design with different wattage ratings.
Key Components:
- Heating Rod: Contains the heating element and temperature sensor.
- Protective Shell: Made from PC and PPA material, offering high temperature resistance and shatter-proof, blast-proof properties.
- Indicator Light: Changes color to show operational status.
- Suction Cups: Two strong suction cups for secure mounting inside the aquarium.
- Power Cord: Copper wire power cord with an insulated plug.
4. Specifications
| Feature | Description |
|---|---|
| Model Numbers | FFH2S (50W & 100W variants) |
| Wattage Options | 50W, 100W |
| Constant Temperature | 77°F (25°C) |
| Temperature Accuracy | ±1°F |
| Voltage | 120V~60Hz |
| Suitable Tank Sizes |
|
| Water Type | Saltwater and Freshwater |
| Materials | PC, PPA, Quartz Glass, Copper Wire |
| Safety Features | Dual temperature control, Overheating protection, Out-of-water auto power-off, Shatter-proof, Blast-proof, Prevents electricity leakage |
| Dimensions (approx.) | 22.2 x 7.7 x 7.5 cm (Parcel); Heater length: 6.6 inches (16.7 cm) |
5. Setup and Installation
Follow these steps to properly install your ERAARK aquarium heater:
- Unpack: Carefully remove the heater from its packaging and inspect for any damage.
- Placement: Choose a location in your aquarium where water circulation is good to ensure even heat distribution.
- Mounting: Use the two provided suction cups to securely attach the heater to the inside wall of your fish tank. The heater can be mounted vertically or horizontally.
- Submersion: Ensure the heater is 100% fully submerged in the water. The heater will not operate correctly and may trigger its safety features if not completely underwater.
- Connect Power: Once the heater is fully submerged and securely mounted, plug the power cord into a suitable 120V~60Hz electrical outlet.
Figure 5.1: Visual guide for proper heater installation. The heater must be fully submerged, either vertically or horizontally. Incorrect installation (partially submerged or out of water) will prevent proper function and trigger safety features.
6. Operating Instructions
The ERAARK aquarium heater is designed for simple, automatic operation to maintain a constant temperature of 77°F (25°C).
- Initial Power-On: After plugging in the heater, the indicator light will illuminate.
- Heating Status:
- When the indicator light is orange, the heater is actively heating the water to reach the target temperature of 77°F.
- When the indicator light is green, the water temperature has reached or exceeded 77°F, and the heater has stopped heating. The heater will automatically resume heating if the temperature drops below 77°F.
- Constant Temperature: The heater will automatically regulate the water temperature to maintain 77°F (25°C) with an accuracy of ±1°F. No manual adjustments are needed.
Figure 6.1: Indicator light meanings. Orange light indicates active heating. Green light indicates the target temperature of 77°F has been reached and heating has paused.
7. Maintenance
Regular maintenance ensures the longevity and efficiency of your aquarium heater.
- Cleaning: Periodically clean the heater's surface to remove algae or mineral deposits. Always unplug the heater and allow it to cool completely before removing it from the tank for cleaning. Use a soft cloth or brush and aquarium-safe cleaning solutions if necessary.
- Inspection: Regularly check the heater for any signs of damage, such as cracks in the protective shell or fraying of the power cord. If any damage is observed, discontinue use immediately.
- Water Changes: During water changes, ensure the water level does not drop below the heater's minimum submersion line. If it does, unplug the heater immediately to prevent the out-of-water protection from activating unnecessarily.
8. Troubleshooting
Refer to the following table for common issues and their solutions:
| Problem | Indicator Light | Possible Cause | Solution |
|---|---|---|---|
| Heater not heating, water is cold. | Off or Green |
|
|
| Heater indicator light is blinking orange. | Blinking Orange | Heater is out of water or not fully submerged. (Out-of-water auto power-off activated). |
|
| Water temperature is not stable at 77°F. | Alternating Orange/Green or Green constantly when cold. |
|
|
9. Warranty and Support
ERAARK products are manufactured with quality and reliability in mind. While specific warranty details are not provided in this manual, please retain your proof of purchase for any warranty claims.
For technical support, troubleshooting assistance beyond this guide, or warranty inquiries, please contact ERAARK customer service through the retailer where you purchased the product or visit the official ERAARK website for contact information.
