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The switch I'm replacing only has two
wires
SwitchLinc needs a neutral wire in order
to operate
If there are white wires in wall box, test
them and if they are neutrals use them
Pull a neutral wire to the wall box
Purchase the 2-wire SwitchLinc
(2474DWH) in place of this SwitchLinc
SwitchLinc is able to communicate with
another INSTEON device
SwitchLinc and the other device are out
of range
Install more INSTEON products
(including, but not limited to Range
The other device is near a localized
powerline noise source or attenuator
Isolate the noise/attenuator using a
FilterLinc
The light turned on by itself
Another controller, a timer or a stray X10
signal was received
Install a powerline signal blocker in your
home to keep X10 signals from
neighboring homes from interfering.
Consider not using SwitchLinc in X10
If problem persists, perform a factory
reset. See Factory Reset
It takes a long time for one or more of
SwitchLinc’s responders to respond
SwitchLinc is repeatedly retrying to
control a missing responder
If the responder is still available, unlink it
from SwitchLinc. See Remove
SwitchLinc as an INSTEON Responder
Perform a factory reset. See Factory
Reset
The load is buzzing when on or dim
The dimming component inside
SwitchLinc "chops" the powerline sine
wave to reduce the power
The bulb filaments are vibrating. Use
rough-service, 130V or appliance-grade
bulbs to reduce the noise
Run SwitchLinc in “full-on” mode or
replace dimmer with and on/off
SwitchLinc is locked up
A surge or excessive noise on the
powerline may have glitched it
Pull the Set button on SwitchLinc all the
way out to create an air gap, wait 5
seconds, then push it back in until it’s
flush with the trim frame (don't push it all
If problem persists, perform a factory
reset. See Factory Reset
SwitchLinc is getting warm to the touch
It is normal for wall dimmers to feel warm
SwitchLinc can turn responder off, but
not on
Your responder may be linked at off
Relink your responder to SwitchLinc at
desired on-level
My controller can turn SwitchLinc off,
but not on
SwitchLinc may be linked at its off
Relink SwitchLinc to your controller,
while its load is on
SwitchLinc trips the Arc Fault Circuit
Interrupter (AFCI)
The AFCI might be too sensitive
Replace your AFCI with a less sensitive
brand or model from a hardware store
with a customer-friendly return policy.
SwitchLinc modules do not trip when
used with the vast majority of AFCI
models and is known to not trip with the
following models:
• GE 15 Amp Combination Arc
Fault Breaker
#THQL1115AFP2
• Murray 2-Pole Combination
Type Arc Fault Circuit
Interrupter #MP215AFCP
There might be loose connections within
your home’s wiring
Install a powerline noise filter (such as a
FilterLinc) between the output and the
The LEDS are too bright (or too dim)
Adjust the LED brightness. See Change
LED Brightness
If you have tried these solutions, reviewed this Owner's Manual, and still cannot resolve an issue you are
having with SwitchLinc Dimmer High Wattage, please call the INSTEON Support Line at 1-800-762-7845
