
Installation Guide
PHSK-2L

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Installation Guide
email - [email protected] (US)
tel - 1-800-477-2267 (East Coast) - 1-888-883-2790 (West Coast)
email - [email protected] (Europe)
PHSK-2L
Universal Dual Temp
Carbon Fiber Seat Heater Kit
Do NOT install PHSK-2L if:
u The OEM seat covers are glued to the foam
u The at center part of the seat is not 10” wide
Be sure to disconnect the vehicle’s battery. (check
to make sure you have radio codes if equipped)
DO NOT modify the factory seat covers or seat
cover seams on seats equipped with side airbags.
The heating elements should only be installed in the
center, at portions of the seat.
Professional installation is recommended. Improper
installation can result in element malfunction,
causing injury or reliability issues.
General Information
DO NOT modify or replace any components of the kit with parts not supplied.
Be sure to mount and secure the heating element to the seat foam, and that
it is free of bends and creases. Damaged elements should NOT be installed
and should be replaced.
FIG. A
FIG. B
Introduction
Thank you for purchasing your EchoMaster Pro Universal Dual Temp
Carbon Fiber Seat Heater Kit.
EchoMaster seat heaters are designed to work fast, minimizing the time that
you have to deal with discomfort from cold seats.
With adjustable temperature settings and an ON/OFF switch, you have full
control over your seat heating experience.

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email - [email protected] (US)
tel - 1-800-477-2267 (East Coast) - 1-888-883-2790 (West Coast)
email - [email protected] (Europe)
Installation Guide
This heating element is designed for use on 12 volt vehicles and should
not be used on any other vehicle with a different operating voltage such as
24 volt or 6 volt vehicles. All power connections should be made to an IGN
source and fused at a max of 12 amps.
DO NOT cut the heating element width wise, as this will damage the element
and cause malfunction. (g. B)
DO NOT modify the harness in any way. Be sure that the harness is routed
and secured in a way to avoid sharp objects, metal edges, or any object that
could chafe the wire harness.
Make sure the seat moves freely from front to rear after installation.
Be sure that the seat foam is clean and free of contaminants such as grease
or silicone. Allow the elements proper time for the adhesion process in order
to ensure the best adhesion. (typically 48 hours) Do not reuse elements after
they have been adhered to a surface.
DO NOT allow the heating element to come into contact with the with
conductive surfaces in the seats frame, metal bars or hog rings or short
circuit may occur.
Seat cover material will affect the heating time. Customers should be
notied about the location of the fuses used in the installation process in case
of failure.
DO NOT install this product over sensors, airbags, or other parts related to
the SRS airbag system.
WARNING
Seat heaters must not be installed in vehicles that will be used by
paraplegic or other occupants who cannot sense heat. Customers must
notify the original installer if the vehicle is sold to a third party.
General Information (continued)
PHSK-2L
Universal Dual Temp
Carbon Fiber Seat Heater Kit

4
Installation Guide
email - [email protected] (US)
tel - 1-800-477-2267 (East Coast) - 1-888-883-2790 (West Coast)
email - [email protected] (Europe)
1
2
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1. 2 x Heated Carbon Fiber Heating Pads
2. Illuminated High/Low Switch
3. Wire Harness Assembly
4. Fuse Holder (10A Fuse)
5. 5 Pole SPDT Relay
6. Heat Transfer Tape
7. Zip Ties
Box Contents
Installation
Park vehicle on a level surface with hand brake engaged.
Disconnect the vehicles battery. (check to make sure that you have radio
codes if equipped)
Unplug all harnesses attached to the underside of the seat. Remove seat
bolts.
Remove the seat from the vehicle taking care not to damage any of the
interior panels during removal.
Remove the seat covers by carefully detaching the “J” clips located at the
seat back’s seam or on the underside of the seat’s base.
CAUTION: the metal that the “J” clip is attached to may be very sharp.
Test t the heating elements against their respective seat cushion and mark
any location that need to be cut.
PHSK-2L
Universal Dual Temp
Carbon Fiber Seat Heater Kit

5
email - [email protected] (US)
tel - 1-800-477-2267 (East Coast) - 1-888-883-2790 (West Coast)
email - [email protected] (Europe)
Installation Guide
If required, carefully cut 2 holes vertically or horizontally, holes should not
exceed 1” in diameter. DO NOT cut more than two holes in each heating
element.
Seat heating elements may be trimmed to t seat cushions length wise. If the
element is too long to t the seat simply trim the element with scissors to t
desired area.
DO NOT cut the heating element widthwise.
Remove the adhesive backing from the heating element and carefully adhere
to the seat cushion in the desired location. Be sure to align any mounting
holes that you have created.
If working with “rod” style seat covers, insulate the rod from contact with the
heating element using a strip of the provided adhesive contact tape.
If working with a “velcro” style seat cover this is not needed.
Reinstall the seat cover and replace the “J” clips to their original location.
Locate 12 volt power source that is capable of supplying 10 amps of
continuous power. EchoMaster recommends using an IGN power source that
rests at 0 volts when the key is not in the RUN position.
Once you have found a suitable power source, route the harness in a safe
manner from under the seat to the desired power source. Be sure that
harness is fastened to vehicle using zip ties.
Find a suitable location for the seat heater switches to be mounted in the side
of the seat, dash, or center console between the driver and passenger seats.
Drill a 13/16” hole (21mm) at the desired switch location. Route the switch
harness through the hole and plug into main harness.
Push the switch into the hole and snap into place rmly.
Reinstall the seats in to the vehicle. Plug all removed connectors back into
seat, and plug the EchoMaster seat heater harness to the heater elements.
Installation (continued)
PHSK-2L
Universal Dual Temp
Carbon Fiber Seat Heater Kit

6
Installation Guide
email - [email protected] (US)
tel - 1-800-477-2267 (East Coast) - 1-888-883-2790 (West Coast)
email - [email protected] (Europe)
Installation (continued)
Make the connection of the EchoMaster provided harness power (RED) to
the IGN source previously identied, and connect the ground wire (BLACK) to
good chassis ground on the vehicle.
Reconnect the battery terminals, and turn the key to the IGN or RUN position.
Test the system to ensure proper functionality
UP = High Middle = OFF Down = Low
Operating Instructions
The PHSK-2L is designed to be operated only when the seat is occupied. It
is imperative that the person occupying the seat is able to feel temperature
differences and be able to react to them.
Those who have difculty feeling temperature differences, such as paraplegic,
young or elderly people should NOT use this product.
The PHSK-2L should not be switched on and left unattended. Caution should
be used to ensure no accidental activation of the seat heater switch.
IF the occupant feels excessive/undesired heat from the seat heater, the
PHSK-2L should be switched off immediately.
External seat covers, blankets, towels, rugs or coverings other than the
original seat cover should not be placed on the seat while the PHSK-2L is in
the “ON” position.
WARNING: The PHSK-2L should not be exposed to liquids of any kind. If
the heater has been exposed to spills or liquids, ample time should be given
for the heaters to dry before continuing use. Otherwise, failure or injury may
occur.
PHSK-2L
Universal Dual Temp
Carbon Fiber Seat Heater Kit

7
email - [email protected] (US)
tel - 1-800-477-2267 (East Coast) - 1-888-883-2790 (West Coast)
email - [email protected] (Europe)
Installation Guide
Operating Instructions (continued)
“HIGH” Temperature Setting:
- The PHSK-2L is switched ‘ON’ by pressing the switch up. This will engage
the seat heater in the HIGH temperature setting. When in the HIGH setting the
LED will illuminate RED.
LOW Temperature Setting:
- The PHSK-2L is also switched ‘ON’ by pressing the switch down. This will
engage the seat heater in the LOW temperature setting. When in the LOW
setting the LED will illuminate AMBER.
Note:
The seat heating element is switched “ON” by moving the switch upwards or
downwards from its center OFF position. The heat will be noticeable within
4 - 5 minutes.
The heating time can vary according to the type of seat cover material and
kind of clothing or coat that is being worn. The heating must be switched to
the ‘Low’ setting in order to avoid overheating, when the desired temperature
has been achieved.
PHSK-2L
Universal Dual Temp
Carbon Fiber Seat Heater Kit

8
Installation Guide
email - [email protected] (US)
tel - 1-800-477-2267 (East Coast) - 1-888-883-2790 (West Coast)
email - [email protected] (Europe)
Wiring Diagram
PHSK-2L
Universal Dual Temp
Carbon Fiber Seat Heater Kit

9
email - [email protected] (US)
tel - 1-800-477-2267 (East Coast) - 1-888-883-2790 (West Coast)
email - [email protected] (Europe)
Installation Guide
Troubleshooting
Problem Solution
The seat heater does not function although the
switch is in the HIGH or LOW position and the
LED is not illuminated.
Verify that they system’s main
power fuse is not blown. Replace
if blown.
The LED is not illuminating on the switch, but the
seat heater is functioning properly.
The LED in the switch is defective.
The seat heater is not functioning and the LED is
illuminated.
The temperature of the the seat
heater is too high and may be in
protection mode. Switch the heater
off and allow to cool.
The distribution of heat is not even between the
seat bottom and back
Discontinue use and consult a
professional installer
The fuse continues to blow repeatedly.
Check system wiring for short
circuit, and contact a professional
installer.
PHSK-2L
Universal Dual Temp
Carbon Fiber Seat Heater Kit

10
Installation Guide
email - [email protected] (US)
tel - 1-800-477-2267 (East Coast) - 1-888-883-2790 (West Coast)
email - [email protected] (Europe)
PHSK-2L
Universal Dual Temp
Carbon Fiber Seat Heater Kit

11
email - [email protected] (US)
tel - 1-800-477-2267 (East Coast) - 1-888-883-2790 (West Coast)
email - [email protected] (Europe)
Installation Guide
PHSK-2L
Universal Dual Temp
Carbon Fiber Seat Heater Kit

email - [email protected] (US)
tel - 1-800-477-2267 (East Coast) - 1-888-883-2790 (West Coast)
email - [email protected] (Europe)
tel - +44(0)1420 487110 (Sales) - +44(0)1420 470618 (Technical)
15500 Lightwave Drive, Suite 202, Clearwater, Florida 33760
Woolmer Way, Bordon, Hampshire, United Kingdom
EchoMaster is a Power Brand of AAMP Global.
Echomaster.com
