Epiphany / Troubleshooting

Troubleshooting

Start with the symptom that matches what you're seeing.

Leaking

If you can hear or smell a leak but can't pin down where it's coming from, mix a few drops of dish soap into water and dab it along suspect fittings, seams, and o-ring seats with a cotton swab. Bubbles form right at the exact point air is escaping — much faster than trying to isolate it by ear or by feel alone.

• Internally: check hoses and banjo fittings first (Epiphany-specific parts only) — a banjo fitting's o-ring can leak even with the fitting itself tightened correctly, so check the seal, not just the fitting; then the solenoid armature — a spike above 280 psi can damage it; confirm the solenoid itself is Epiphany-rated (red coil wrap, black Ion logo) rather than a standard Ion or pre-Epiphany Blackheart unit, which aren't built for this pressure range.
• Down the barrel: a bolt or bolt stop o-ring is damaged — see O-Ring Specs.
• From the rear of the fire chamber, around the swivel donut: its two o-rings are worn or damaged. This one's under a snap ring and rarely needs attention otherwise; see Firing Assembly for removal.
• From the macroline fittings: reseat the hose fully, confirm it's locked in; replace if damaged, with clean-cut, undeformed ends.
• In or around the regulator: check the regulator o-ring at the top first (a standard CO2 bottle o-ring works as a substitute); then the regulator seat — it can be flipped to use the reverse side once before full replacement.

Electronics

Marker won't turn on

• Replace the battery.
• Check the power switch. Separate the frame from the body and look at the board — the power switch (top-right) should look identical to the programming switch (bottom-right). The small raised button breaking off, or the switch's metal cover coming loose, are both common and visually obvious once you're looking at it.
• Check the main capacitor for damage — this is often caused by grip screws that are too long for the panel thickness. See the grip-screw-length warning on Teardown — this is exactly the failure mode that warning is about.
• With the battery connected, try pushing the power switch directly with your finger. If the LED lights after about two seconds, you're just not pressing the external button firmly enough — reassemble and try again. If it still doesn't light, the board itself needs repair or replacement.

Can't enter programming mode

• Same power-switch check as above — the programming switch is the identical part, just at the opposite corner of the board.
• Inspect the board for visible damage or debris interfering with the circuit.

Solenoid doesn't fire when you pull the trigger

• If the LED doesn't blink each time you pull the trigger, the trigger microswitch isn't being actuated — check trigger adjustment first. See Trigger & Grip Frame.
• Replace the battery — "dead" typically means down to 7–7.5 volts, at which point the board still turns on but the solenoid won't click.
• Confirm dwell isn't set too low — a setting near the bottom of the range can prevent the solenoid from actuating at all.
• Check the solenoid coil wire for damage where it connects to the silver pins on the board.

Board shuts off when the solenoid fires

• Replace the battery.
• Check the main capacitor for grip-screw damage, as above.
• Check the two silver prongs holding the solenoid to the board — if either is contacting other board components, this is the likely cause.

Marker turns itself on and off at will

The power switch is defective or bouncing and needs replacement.

First shot drop-off (FSDO)

• Clean and lubricate the bolt, body breech, fire chamber, and bolt stop with Molykote 33 Light — debris or poor lubrication here is the most common cause.
• Increase dwell if cleaning doesn't resolve it.

Inconsistent velocity or drops during rapid fire

• Check barrel-to-paint fit.
• Check gas source level and that the valve is fully open.
• Replace the battery — this is especially noticeable as dropping velocity, then whole shots not firing, during rapid fire.
• Inspect and clean the regulator seat; flip it if damaged, replace if damaged on both sides.
• Pressure may simply be too low for your current insert — switch to a smaller-volume insert and raise pressure. See Volume Inserts.
• Check the SFT o-ring.
• Liquid CO2 entering the regulator — switching to HPA sidesteps this entirely; see the CO2 note below.

Turns on but won't fire

• Replace the battery.
• Solenoid blocked with debris — disassemble, clean, reassemble dry (no lubricant). See Electronics.
• Trigger set screws mis-adjusted — the switch should audibly click when the trigger is pulled with the marker off. See Trigger & Grip Frame.
• Trigger switch itself damaged — this is a board-level repair, not user-serviceable.
• Regulator output too high (above 280 psi) — reduce pressure; if it keeps creeping back up, inspect/clean/replace the regulator seat.
• Liquid CO2 entering the regulator — see the CO2 note below.

Vision issues / marker won't clear a chamber obstruction

• Power button flashing in Vision mode but won't fire — likely a chamber obstruction. Switch to non-Vision mode and fire (in a safe direction, properly protected) to clear it.
• Paint or debris blocking the Vision eyes — remove the Vision board, clean the emitter/detector with a damp soft cloth, and clean the ports in the body breech with a cotton swab.
• Wiring harness disconnected, bent, crimped, or frayed at either end.
• Vision reflector (the mylar sticker inside a polymer body cover, if you're running one) damaged or missing.

Breaking paint

• Battery low.
• Ball detents worn — should extend about 1/16" into the breech; replace if they don't.
• Barrel-to-paint fit.
• Dwell too high — lower in small increments.
• Vision mode accidentally off (double-blink pattern) — turn it back on.
• Vision eyes or reflector fouled or damaged, same fixes as above.
• Liquid CO2 entering the regulator — see the CO2 note below.

Rate of fire / tournament limits

• ROF Delay turned all the way down but still won't shoot fast — check your loader; non-motorized or agitation hoppers can't feed as fast as the Vision system allows the marker to fire, becoming the actual bottleneck.
• Referee says it's shooting too many bps — raise ROF Delay. The official manual includes a full dwell/ROF-delay-to-CPS lookup table if you need to hit an exact field-mandated cap.
• Referee says it's firing more than one shot per pull — set fire mode to 0 (semi-automatic).
• Referee wants a tournament lock — a velocity locking cap physically secures the regulator setting. Smart Parts is no longer in business, so check the used market or aftermarket sellers rather than an authorized dealer.