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• O-ring 16x1.5 x1

• O-ring 8x1 x2

• O-ring 6x1 x1

• O-ring 4x1 x1

Troubleshooting 

Low FPS

• No airtightness between the hop-up bucking and the nozzle

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Check the air tightness between the hop-up bucking and the nozzle, check the hop-up chamber

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• Misaligned replica

1. Check the position of the nozzle relative to the barrel. To do this, we recommend using either an endoscopic camera or a flashlight.

2. If the nozzle is not in the center of the barrel, you need to do an adjustment of the gearbox position in the replica, as deviations from the axis can cause leaks.

• Leak at the hop-up bucking/nozzle connection

1. Plug the barrel with your finger and fire one shot with the pressure connected in Single Solenoid Valve Engine mode. Make sure there is no bullet in the chamber and the magazine is not inserted. After firing, the nozzle should remain closed and pressure should remain in the barrel until you remove your finger from the barrel muzzle.

2. If you hear a hiss of air coming from the chamber, it means that the hop-up bucking is not properly sealing with the nozzle. In such a case, follow the steps below to see if they have solved the problem

   1. Make sure the hop-up chamber is pressed against the face of the gear – we recommend using 8 x 1 mm o-rings placed on the barrel in front of the hop-up chamber.

   2. Use a longer nozzle.

   3. Use different hop-up bucking.

• Bent air hose in gearbox

1. Open the gearbox and check if the air hose is bent/broke.

2. Connect pressure and check for air hissing around the hose. If so, tighten the air hose to the engine body.

• Non-optimal engine settings in GCS

1. Restore the default settings of the HPA Engine.

2. Increase Main Valve Time.

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There is no nozzle cycle – TP NM warning pops up in GCS

• If the replica is firing correctly but the TP NM warning appears in the GCS application, it may be because shots were fired without connected pressure.

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up in GCS

• Shots fired without pressure connected

1. If your replica fires correctly, you can either ignore the error or delete it by clearing the DTC.

2. If the problem persists, first check if the wires are connected in the correct order to the solenoid valves.

3. The engine works correctly from about 60-70 PSI. If there is no full nozzle cycle, you can increase the pressure on the regulator and reduce the nozzle cycle time. If this does not help, you can install a tappet plate spring with a smaller forceand reduce the nozzle cycle time. If this does not help, you can install a tappet plate spring with a smaller force.

4. Check for the correct connection of the solenoid valves' wires with the unit. Improper connection will result in incorrect operation of the nozzle.

Unstable FPS

• The Broken tappet plate spring is broken

Replace the tappet plate spring.

1. Disassemble the replica and remove the gearbox.

2. Open the gearbox.

3. Remove the damaged tappet plate spring and make sure that no part of it is left in the gearbox – a part of the spring left behind may cause malfunction of the tappet plate.

4. Install a standard nozzle tappet plate spring from an AEG replica – we suggest using soft springs e.g. Retro Arms.

5. Reassemble the gearbox and the replica.

• Hop-up bucking collar curls up

1. If you have an EON hop-up chamber, use an offset clip.

2. Use a different hop-up bucking.

3. Use a shorter nozzle.

Sudden drop in replica accuracy – scattering of BBs

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• Broken tappet plate spring is broken

Replace the tappet plate spring.

1. Disassemble the replica and remove the gearbox.

2. Open the gearbox.

3. Remove the damaged tappet plate spring and make sure that no part of it is left in the gearbox – a part of the spring left behind may cause malfunction of the tappet plate.

4. Install a standard nozzle tappet plate spring from an AEG replica – we suggest using soft springs e.g. Retro Arms.

5. Reassemble the gearbox and the replica.

Muffled firing sound – significantly different from the regular one

• The Broken tappet plate spring is broken

Replace the tappet plate spring

1. Disassemble the replica and remove the gearbox.

2. Open the gearbox.

3. Remove the damaged tappet plate spring and make sure that no part of it is left in the gearbox – a part of the spring left behind may cause malfunction of the tappet plate.

4. Install a standard nozzle tappet plate spring from an AEG replica – we suggest using soft springs e.g. Retro Arms.

5. Reassemble the gearbox and the replica.

• Hop-up bucking collar curls up

1. If you have an EON hop-up chamber, use an offset clip.

2. Use a different hop-up bucking.

3. Use a shorter nozzle.

No BB feed

• The Broken tappet plate spring is broken

Replace the tappet plate spring.

1. Disassemble the replica and remove the gearbox.

2. Open the gearbox.

3. Remove the damaged tappet plate spring and make sure that no part of it is left in the gearbox – a part of the spring left behind may cause malfunction of the tappet plate.

4. Install a standard nozzle tappet plate spring from an AEG replica – we suggest using soft springs e.g. Retro Arms.

5. Reassemble the gearbox and the replica.

• Excessively low operating pressure

In some cases, (e.g. because of low outside temperature or replacing the tappet plate spring with a harder one), it may be necessary to set a higher operating pressure, which will result in a higher firing rate. You will then need to shorten the Main Valve Time (DP) to achieve lower FPS. Follow these steps:.

1. increase Increase the pressure on the regulator until the BBs are properly fed.

2. decrease Decrease the Main Valve Time (DP) until the desired muzzle velocity is achieved.

• Wrongly connected solenoid valves to the unit

Connect the wires to the unit according to the manual, paying special attention to the correct order of connection. Connecting them in reverse will result in incorrect operation of the nozzle and engine.

Nozzle does not return to the front position when it is depressed

• The Broken tappet plate spring is broken

Replace the tappet plate spring.

1. Disassemble the replica and remove the gearbox.

2. Open the gearbox.

3. Remove the damaged tappet plate spring and make sure that no part of it is left in the gearbox – a part of the spring left behind may cause malfunction of the tappet plate .

4. Install a standard nozzle tappet plate spring from an AEG replica – we suggest using soft springs e.g. Retro Arms.

5. Reassemble the gearbox and the replica.

FAQ – Frequently Asked Questions

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