Light Up Troubleshooting Guide
Light Up Troubleshooting Guide
Fusion Reactors - Light Up Troubleshooting Guide
If your Fusion light kit isn’t turning on, follow the steps below before contacting support. These checks solve most issues with USB dummy battery converters and 1/6 scale light-up figures.
1. Check Power & Adaptor
• Make sure you are using a 5V power adaptor with around 2A output (standard USB).
• Do not use fast-charging or high-voltage adaptors (for example, 9V or 12V quick-charge ports).
• Try another wall adaptor and/or another USB port to rule out a faulty power source.
• If possible, test the adaptor with another USB device (for example, a phone or USB lamp) to confirm it works.
Recommended:
• Power adaptor (5V, 2A output – not included)
• USB 2.0 cable
2. Confirm the Figure’s Original Switch
• Turn the figure’s original light switch ON (the same switch used when running on batteries).
• Some figures have more than one switch or a hidden toggle. Double-check the manual or body for extra switches.
• Gently move the switch on and off a few times to ensure it is fully engaged and not stuck between positions.
3. Check Dummy Cells & Contacts
• Ensure all dummy cells are correctly inserted in the battery compartment.
• Check the orientation:
– Red (+) wire connects to the positive side.
– Black (–) wire connects to the negative side.
• Start by placing the dummy on the spring side at about a 45° angle. Use a small flat tool gently if needed, then push it fully into place with your finger.
• Make sure the metal/copper contacts are touching the ends of the dummy cell and nothing is sitting at an angle.
Important:
If the compartment is closed too tightly, it can pull the dummy cells out of position. Open and re-seat them, then close the door slowly while watching that they stay in place.
• Close the compartment with a gentle, controlled push – do not slam it or over-tighten screws, as this may damage contacts and the kit.
3.1 Special Instructions for 3 x AAA Battery Compartments
Many Hot Toys Iron Man figures and bases use a 3 x AAA battery compartment. To install
the Fusion dummy battery correctly:
1. Open the AAA compartment and locate the three battery slots. Look for the slot that has a stand-alone metal contact – this is usually where the dummy battery should sit.
2. The middle compartment is normally left empty. Do not try to force the dummy into the centre slot.
3. Inside the compartment there may be a small dot or marking that shows where the copper end of the dummy should touch. Align the dummy so that its copper contact lines up with this dot and the metal contact.
4. Match the ends of the dummy to the + and – markings inside the compartment:
• The end with the red (+) wire goes on the positive side.
• The end with the black (–) wire goes on the negative side.
5. Once the dummy is in position, gently close the compartment, making sure the dummy does not lift or move away from the metal contact as you close the door.
If you are unsure which slot to use in your specific figure, refer to the printed diagram included with your kit or send us a photo of the open compartment for guidance.
4. Inspect the Cable & Connector Alignment Marks
• Check that the USB cable is firmly plugged into both the kit and the power adaptor or USB port.
• Look along the cable for kinks, cuts, crushed sections, or exposed copper. If you see any visible damage, stop using that cable.
• Many Fusion connectors have small markings (for example, arrows or lines) on both the plug and the socket. Make sure these markings are aligned before connecting. Do not force connectors together if the markings are not lined up – this can damage the pins or cause a poor connection.
• If your kit uses a standard USB plug, try a different USB cable to rule out a faulty cable.
5. Watch the LED Behaviour
• When power is applied, observe what the LEDs do:
– Do they flicker briefly then go out?
– Do they stay completely off?
• Flickering, very dim light, or lights that only work when you press on the compartment usually indicate a contact or positioning issue with the dummy cells or switch.
• If the LEDs suddenly change colour or flash in a way that is not part of the design, unplug the kit and re-check all connections.
6. Safety Check – Stop If You Notice This
Immediately unplug the kit and stop testing if you notice:
• Unusual smell (burning or chemical)
• Excess heat from the figure, USB plug, or adaptor
• Rapid flashing or very dim light that appears suddenly and is not part of the normal effect
• Any visible damage to wires, connectors, or the dummy cells
Do not continue forcing connections or cycling power. Take clear photos and contact us for advice.
7. Still Not Working?
If you have tried the steps above and the light still will not turn on:
1. Take clear photos (and a short video if possible) showing:
• The open battery compartment with dummy cells inserted
• How the cable is routed out of the compartment
• The power adaptor and USB connection you are using
2. Note:
• Your figure model (for example, HT MMS473 Mark 50)
• Approximately when you purchased the kit
• Which steps from this guide you have already tried
3. Email everything to us at Hendra@fusionreactors.com.au.
We will help diagnose the issue and advise the next steps (adjustment, repair, or replacement if covered by warranty).