Why Is My JellyFish Lighting Controller Power Light Not Turning On?
- No power to the controller (breaker/transformer)
- Power supply/adapter failure
- Loose or damaged power wiring
Based on real troubleshooting feedback from Trunetto users.
Most users start with the recommended first fix below.
Problem Description
The JellyFish Pro 2 controller shows no power indicator, its front panel display is completely dark, and the connected lights are unresponsive — indicating the controller is not receiving power or has experienced an internal fault.
Why This Happens in Real Homes
A JellyFish Pro 2 controller with no power light isn't getting power — before suspecting the controller itself, trace the power path. These are professionally installed, hardwired systems, so the controller is fed from a circuit that could have a tripped breaker or GFCI, a failed power supply, or a loose or damaged connection, especially after a storm.
Confirm the circuit feeding the controller is live (check the breaker and any GFCI on that circuit), then inspect the power supply and wiring for a failure, blown fuse, or surge damage — the controller is exposed to outdoor conditions. Tighten any loose connections. If the circuit is confirmed live and the wiring intact but the controller stays dark, it may have a hardware fault, and JellyFish or your installer should handle it, since these are typically warrantied, professionally-installed systems.
Symptoms
- No power light on the controller
- Controller shows no power
- Power LED off
- Controller dead
- No lights on the controller
- Won't power up
- No power indicator
- Controller not powering on
Recognize these? Here's what usually causes it.
Common Causes
- No power to the controller (breaker/transformer)
- Power supply/adapter failure
- Loose or damaged power wiring
- Tripped breaker/GFCI on the circuit
- Blown fuse
- Surge damage
- Wiring connection issue
- Controller hardware fault
Most fixes happen in the first 3 steps.
Do not attempt to open the JellyFish controller casing. There are no user-serviceable components inside, and opening the unit voids the warranty. If the controller is unresponsive after checking all power inputs, contact your authorized JellyFish dealer for warranty service.
Tools & Requirements
Step-by-Step Solution
GFCI Outlets Are Common in Outdoor Installations
Most JellyFish controllers are plugged into a GFCI-protected outlet in a garage or exterior box. GFCI outlets trip frequently after rain or humidity events. Always check for a GFCI Reset button before calling for service.
Do Not Bypass the GFCI
GFCI protection exists for safety in wet locations. Never replace a GFCI outlet with a standard outlet near outdoor electrical connections.
Warranty Coverage
JellyFish provides a limited lifetime hardware warranty through authorized dealers. If the controller has failed due to a power surge or internal fault, contact your dealer or JellyFish support at 801-613-7421 to initiate a warranty replacement.
Quick Solutions
Still having issues? This is usually the deeper cause below.
If drain continues after replacing batteries, check the event history — a stuck-open sensor or rapid polling loop burns through batteries in days.
GFCI outlets are common in outdoor JellyFish installations and trip frequently after rain or humidity. Always check for a tripped GFCI before calling for service — it is the most common and quickest fix for a controller with no power.
Battery-related failures are almost always flagged too late — the device degrades silently for days before the app catches up to what's actually happening.
- No power to the controller (breaker/transformer)
- Power supply/adapter failure
- Loose or damaged power wiring
- Tripped breaker/GFCI on the circuit
- Blown fuse
Before you go — try one of these (they fix most cases).
Official Manufacturer Manual
JellyFish Lighting provides official product documentation through their online manual rather than downloadable PDF. Access setup guides, troubleshooting steps, and product specifications for your JellyFish Lighting System.
Source: jellyfishlighting.com
Need More Help? JellyFish Lighting Support
Note: The contact information below connects you directly to JellyFish Lighting's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.