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PP750 Manual 3/6/02 2:25 PM Page 1
THE WHISTLER GROUP
CORPORATE HEADQUARTERS
13016 N. Walton Blvd.
Bentonville, AR 72712
TEL (479) 273-6012 FX (479) 273-2927
www.whistlergroup.com
PRODUCT DEVELOPMENT CENTER
25 Industrial Ave.
Chelmsford, MA 01824
TEL (978) 244-1400 FX (978) 244-1491
OWNER’S MANUAL
750 WATT
HIGH SURGE POWER INVERTER
CUSTOMER RETURN CENTER
1201 N. Dixieland Rd.
Rogers, AR 72756
Consumer Relations Tel (800) 531-0004
Email: info@whistlergroup.com
P/N PP750MAN/2
©WHISTLER 2002
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PP750 Manual 3/6/02 2:25 PM Page 3
If you have questions concerning the
operation of this Whistler product
please call consumer relations:
1-800-531-0004
Hours:
Monday - Friday
8:00 am - 5:00 pm CT
Please keep the receipt in a safe
place. If the unit is returned without a
dated proof of purchase, an out of
w a rranty service charge applies.
Note: Your warranty period begins at
the time of purchase. The warranty is
validated only by your receipt.
Now is the time to record the serial
number of the unit in the space provided in the warranty section of the
manual.
INTRODUCTION
Dear Whistler Owner,
For many of us, a vehicle is more than just transportation. It
can be a mobile office, communications or entert a i n m e n t
c e n t e r, or simply an expression of our personality. Whistler
p roducts are designed to make the time you spend in your
vehicle more productive, more fulfilling, safer, or just simply
m o re fun. Our mission is to provide products that impro v e
your driving experience.
Whistler offers a complete line of DC to AC inverters
ranging in capacity from 140 Watts to 2750 Watts. These
inverters offer advanced technology, dependable operation
and will provide years of reliable service when used in accordance with our operating instructions.
Your new Whistler GO AC power inverter allows you to ru n
most AC appliances right from your car, boat or RV. They’re
g reat for weekend use and life on the road. They’re also gre a t
for power outages!
To fully acquaint yourself with the operation of the Whistler
PP750AC we recommend reading this entire manual.
Sincerely,
THE WHISTLER GROUP
We’re Driving Technology
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PP750 Manual 3/6/02 2:25 PM Page 5
TABLE OF CONTENTS
Topic Page
Features Summary......................................................................3
Important Information................................................................4
Inverter Basics.......................................................................5 - 7
• Getting Started
• Don’t Push It
Operation............................................................................8 - 12
• Making the Connection
• Tips
• Recharging Equipment
• Changing the Fuse
• Power Source
Additional & Safety Features...........................................13 - 14
• Auto Shut Down
• Thermal Cut Off
• Low Battery Protection
Care & Maintenance................................................................15
Technical Operating Principles........................................16 - 17
Operation Summary .........................................................18 - 19
Troubleshooting................................................................20 - 22
Specifications............................................................................23
Warranty Information........................................................24 - 26
WHISTLER FEATURES
A Word About WHISTLER GO AC™ Inverters.
Whistler inverters convert low voltage, direct current (DC)
to 110 volt alternating household current (AC). The AC
output is called “modified sine wave”. See “Technical
Operating Principles” section for more inform a t i o n .
Depending on the model and its rated capacity, Whistler
inverters draw power either from standard 12 volt automobile and marine batteries or from portable high power 12
volt sources.
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2
3
4
1. AC Output Sockets
2. On/Off Switch
3. Power/Overload LED
4. Power Cords
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IMPORTANT INFORMATION
I m p o rtant Information About Your New W h i s t l e r
Inverter.
This manual will provide you with directions for the safe
and efficient operation of your Whistler GO-AC 750 Watt
Inverter. Read the manual carefully before using your new
Whistler inverter and keep the manual on file for future reference.
Notes:
Your Whistler inverter is designed to operate from a 12 volt
power source only. Never attempt to connect your
Whistler inverter to any other power source, including any
AC power source.
• The length of the supplied cables is matched for the
current needed by the inverter. Making this cable
longer will make the inverter less efficient and may
cause the cables to heat up.
• Do not attempt to lengthen the supplied power
cables.
• 110 volts can be lethal. Improper use of your Whistler
inverter may result in property damage, personal
injury or loss of life.
• Check with the appliance manufacturer for com-
patibility with modified sine wave inverters. Some
appliances may not work well, not at all or be damaged.
For more information on compatibility issues, please visit
our inverter FAQ page at w w w. w h i s t l e rg ro u p . c o m / f a q -
inverters.asp
This is especially true for medical equipment.
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INVERTER BASICS
Getting Start e d
Power equipment and appliances which operate with motors
or tubes re q u i re an initial surge of power to get them up and
running. This power surge is re f e rred to as the "starting load"
or "peak load." (By comparison, electrical devices such as
s t a n d a rd light bulbs do not re q u i re a large starting load).
Once the equipment or appliance has been powered up, it
settles down to a slower pace and re q u i res far less electrical
power to operate. This lower power re q u i rement is re f e rre d
to as the "continuous load."
In order to ensure that the capacity of your Whistler i n v e rt e r
is sufficient to meet the re q u i red start up load, you must first
d e t e rmine the power consumption of the equipment or
appliance you plan to operate.
Power consumption is rated either in wattage or in ampere s ,
and information re g a rding the re q u i red "watts" or "amps"
generally is stamped or printed on most appliances and
equipment. If this information is not indicated on the appliance or equipment, check the owner’s manual. Contact the
appliance or equipment manufacturer to determine if
the device you are using (TV’s, battery re-charger, computer, etc.) is compatible with a modified sine wave.
If the power consumption is rated in amps, multiply the number of amps by 110 (AC voltage) to determine the comparable wattage rating. As a general rule, you can determine the
re q u i red start up load by multiplying the wattage rating by 10.
For further information on the fundamental operating principles of Whistler inverters and related technical data, see
"Technical Operating Principles"
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INVERTER BASICS
Don’t Push It.
Although your Whistler GO AC inverter has the capacity to
p rovide power output (excess current) equal to appro x imately two times its rated wattage capacity for a very brief
period, it is designed to operate equipment and appliances
with start up load wattage ratings no higher than its own
maximum continuous wattage rating.
For example, the 750 model has a maximum continuous rating of 750 watts. Although this model has the capacity to
briefly provide up to 1500 watts of power (that is, excess current), it is designed to operate equipment and appliances
with start up load re q u i rements of 750 watts or less.
C o n s e q u e n t l y, if the start up load rating of your equipment
or appliance is the same or approximately the same as the
maximum continuous rating of the invert e r, the inverter will
attempt to start loads above the continuous rating for up to
10 seconds.
To determine whether your inverter will operate a part i c u l a r
piece of equipment or appliance, run a test. The inverter is
designed to shut down automatically in the event of a
power overload. Testing appliances and equipment with
s t a rt up load ratings comparable to your inverter wattage
rating will not damage it.
INVERTER BASICS
If a piece of equipment or an appliance will not operate, first
c o n f i rm that the inverter has been properly connected to
the 12 volt power source (See "Making The Connection"). If
all connections have been properly made, turn the invert e r
rocker switch ON (l), OFF (O) and ON (l) again in quick succession. If this pro c e d u re is unsuccessful, it is likely that the
i n v e rter does not have the re q u i red start up capacity to
operate the equipment or appliance in question.
Note:
• Most heat generating appliances re q u i re start up loads
in excess of 1000 watts and the PP750AC inverter will
not operate such appliances as coffee makers, iro n s ,
hair dryers or heaters.
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OPERATION
Making the Connection.
The PP750AC is designed to connect to your 12 volt battery
by the supplied #8 gauge cables.
1. Make certain that the PP750AC rocker switch is in the
OFF (O) position.
2. Connect the cables to the power input terminals at
the rear of the inverter and tighten the screws to make
a secure connection. Do not use tools to tighten
these screws.
3. Connect the cable from the (BLACK) Negative (-) terminal on the inverter to the Negative (-) terminal on
the 12 volt power source. Make certain the connection is secure.
4. Confirm that the cable you have just installed is properly connected. Specifically, make certain that the
cable is connected to the Negative (-) terminals on
both the inverter and the 12 volt power source.
5. Connect the cable from the (RED) Positive (+) terminal
on the inverter to the Positive (+) terminal on the
power source.
OPERATION
Note:
• Loose connections can result in a severe decrease in
voltage which may cause damage to the wires and
insulation.
• F a i l u re to make proper connection between the
inverter and the power source will result in reverse
polarity. Reverse polarity will blow the internal fuses in
the inverter and may cause permanent damage to the
inverter. Damage caused by reverse polarity is not
covered under the Whistler warranty.
• Making the connection between the Positive (+) terminals may cause a spark as a result of current flowing
to the capacitors in the inverter. This is a normal
occurrence. Due to the potential for sparking, however, it is extremely important that both the inverter
and the 12 volt battery be well removed from any possible source of flammable fumes or gases.
Failure to heed this warning could result in fire or
explosion.
• If the supplied cables are too short to allow for placement of the inverter in a desired location, the inverter
may be connected to the power source using a #4
wire, up to 12’ - #2 wire for longer lengths. The steps
outlined for making the connection and the related
safety precautions remain unchanged.
6. Turn the inverter rocker switch to the ON (I) position.
The LED Indicator Light should glow GREEN confirming that there is power running to the inverter.
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OPERATION
7. Turn the inverter rocker switch to the OFF (O) position.
(The GREEN LED Power Indicator light may “blink”
briefly and/or the internal audible alarm may make a
momentary “chirp”. This is normal).
8. Confirm that the equipment or appliance to be operated is turned off. Plug the equipment or appliance
into one of the three AC receptacles on the front
panel of the the inverter.
9. Turn the inverter to the ON (I) position. Turn on the
equipment or appliance.
Note:
• As indicated in Step 7 above, the audible alarm may
make a momentary “chirp” when the inverter is
turned OFF (O). The same alarm may also sound
when the inverter is being connected to or disconnected from the 12 volt power source. Again, this is
normal.
• The use of an extension cord from the inverter to the
appliance or equipment being operated will not significantly decrease the power being generated by the
inverter. For best operating results, the extension
cord should be no more than 50 feet long.
• Check frequently to ensure that the input and output
connections are secure. Loose connections may damage the inverter, the power source, or may generate
excessive heat.
OPERATION
Important Information on Battery Chargers
Using your inverter to re c h a rge units designed to charge such
p o rtable equipment as power tools, flashlights, video cameras
and laptop computers may cause damage to the inverter
or the charging unit. Check with the appliance manufacture r
for compatibility with sine wave inverters if you’re unsure .
Although we advise against it, if you attempt to re c h a rge a
c h a rging unit, monitor the temperature of the charging unit
for approximately 10 minutes. If the charging unit becomes
unusually warm, disconnect it from the inverter immediately.
Don’t Blow A Fuse.
The PP750AC is equipped with three 35 amp spade type
fuses. With reasonable care, it should not be necessary to
replace the fuse(s) in your invert e r.
Most blown fuses are the result of reverse polarity or a short
c i rcuit within the appliance or equipment being operated. If
the fuse(s) does blow, turn off and disconnect the appliance
or equipment from the inverter immediately, repair the
related problem and replace the fuse(s). The fuse compartments are easily accessed at the back of the unit undern e a t h
the "lift up" covers.
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OPERATION
Note:
• Make certain to correct the source of the overload
which caused the blown fuse before turning your
inverter back ON (l).
The Power Source.
When the engine is off, most batteries will provide ample
power supply to the inverter for one to two hours. The actual
length of time is a function of several variables including the
age and condition of the battery and the power demand
being placed on it by the equipment being operated with the
i n v e rt e r.
If you are using the inverter while the engine is off, we
recommend you start the engine every hour and let it run for
at least 10 minutes to re c h a rge the battery. We also re c o m-
mend that the device plugged into the inverter be turned off
b e f o re turning over the engine.
Although it is not necessary to disconnect the inverter when
t u rning over the engine, the inverter may momentarily cease
operation as the battery voltage decreases. When the inverter is not supplying power, and turned on, it draws very low
amperage from the battery (<0.35 A ).
ADDITIONAL FEATURES
Automatic Shut Down & Related Safety Features.
Each Whistler GO AC inverter model has an unique LED
Indicator warning light system which operates in conjunction
with the automatic shut down feature. These indicator
lights operate as follows:
GREEN LED: System re a d y.
YELLOW LED: System overload/automatic shut down.
Your inverter will shut down automatically when any of the
following problems occur:
1. The power input from the battery drops below
9.5 volts.
2. The power input from the battery exceeds 16 volts.
3. The continuous draw of the appliance or equipment
being operated exceeds the design parameters of the
inverter.
The Whistler PP750AC models are equipped with the following additional safety feature s :
1. T h e rmal Cut Off:
Automatic shut down when the internal circuit temperat u re exceeds standard design parameters for safe
operation.
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ADDITIONAL FEATURES
2. Low Battery Voltage Alarm/Shutdown Protection
a) When the input voltage from the 12 volt power source
drops below 10.5 volts, an audible tone will be heard.
This is the low battery voltage alarm.
b) The inverter will automatically shut down when the
input voltage drops below 9.5 volts. This protects the
battery from completely draining.
In the event of automatic shut down or continuous audible
a l a rm, turn the inverter rocker switch to the OFF (O) position
until the source of the related problem has been identified
and re s o l v e d .
Wall Mounting:
Whistler inverters have provisions for wall mounting; two
slotted holes in the handle area and a notched area at the
power cord end allow for easy wall mounting of the unit.
Some Powerful Advice.
Your Whistler GO AC inverter will work best when placed on
a reasonably flat surface. The floor or seat of your car or tru c k
both are good locations.
When driving with the inverter in operation, make certain that
neither the inverter nor the power cords will impede safe
operation of your vehicle. Keep the unit and all cords clear of
the steering wheel, gas, brake and clutch pedals and gear
s h i f t .
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CARE AND MAINTENANCE
To maintain your inverter in proper working condition, note
the following important safety pre c a u t i o n s :
• MOISTURE. Keep the inverter dry. Do not expose it
to m o i s t u re. Do not operate the inverter if you, the
i n v e rt e r, the device being operated or any other surfaces that may come in contact with any power
sources are wet. Water and many other liquids can
conduct electricity which may lead to serious injury or
death.
• HEAT. For peak efficiency, the ambient air temperature should be between 50° and 80° F. Avoid placing
the i n v e rter on or near heating vents, radiators or
other sources of heat. Do not place the inverter in
d i rect sunlight.
• V E N T I L ATION. In order to disperse the heat generate d while the inverter is in operation, keep it well ventilated. While in use, maintain several inches of clearance around the top and sides of the inverter.
• FUMES & GASES. Avoid using the inverter near
flammable materials. Do not place the inverter in
areas such as battery compartments, where fumes or
gases may accumulate.
In Review.
• Never attempt to operate your Whistler inverter from
any power source other than a 12 volt battery or series
of batteries that total 12 volts.
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OPERATING PRINCIPLES
For You Technical Types.
1. Basic Operating Principles:
WhistlerGO AC inverters work in two stages. During the first
stage, the DC to DC converter increases the DC input voltage
f rom the power source (e.g. a 12 volt battery) to 145 volts DC.
In the second stage, the high voltage DC is converted to 110
volts (60 Hz AC) using advanced power MOSFET transistors
in a full bridge configuration. The result is excellent overload
capability and the capacity to operate difficult reactive loads.
The output waveform resulting from these conversions is a
"quasi-sine wave" or a "modified sine wave" as shown on the
following page.
This stepped waveform is similar to the power generated by
utilities and has a broad range of applications.
The modified sine wave produced by
your Whistler GO AC Inverter
OPERATING PRINCIPLES
majority of AC voltmeters are calibrated for RMS voltage
and assume that the measured waveform will be a pure sine
w a v e .
C o n s e q u e n t l y, these meters will not read the RMS modified
sine wave voltage correctly and, when measuring your
Whistler i n v e rter output, the meters will read about 20 to 30
volts too low. To accurately measure the output voltage of
your invert e r, use a true RMS reading voltmeter such as a
Fluke 87, Fluke 8060A, Beckman 4410, Triplett 4200 or any
multimeter identified as "True RMS."
For more information on inverters see our Inverter FA Q
page at www. w h i s t l e rg ro u p . c o m / f a q - i n v e rt e r s . a s p
A true sine wave typical of home AC outlet.
The modified sine wave produced by your Whistler invert e r
has a root mean square (RMS) voltage of 110 volts. The
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OPERATION SUMMARY
• The PP750AC is designed to be connected to the
power source with the supplied cables or with #4 wire
up to 12’ - #2 wire for longer length. When utilizing the
supplied cables do not attempt to modify or lengthen
them.
• Always make certain that the power cable terminal connections run Negative (-) to Negative (-) and Positive (+)
to Positive (+). Check these connections frequently to
e n s u re that they are secure .
• Make certain the rated power consumption of the appliance or equipment you wish to operate is compatible with
the capacity of your invert e r.
• If the rated power consumption of the equipment is in the
range of the maximum specified wattage of your converte r, test the inverter to ensure that it will operate pro p e r l y.
• The PP750AC Watt Inverter is not designed to operate
heat generating appliances such as coffee makers, iro n s ,
hair dryers, toasters and heaters.
• B e f o re attempting to use a battery charger see page 11.
• B e f o re attempting to use medical equipment see page 4.
OPERATION SUMMARY
• Use only fuses which conform with the design specifications outlined in this manual.
• When operating the inverter with the engine off, start the
engine every hour and let it run for at least 10 minutes to
re c h a rge the battery.
• In the event of automatic shut down, turn the inverter OFF
(O) immediately. Do not re s t a rt the inverter until the
s o u rce of the problem has been identified and corre c t e d .
• To avoid battery drain always disconnect the inverter
when not in use.
• Do not expose the inverter to moisture.
• Avoid placing the inverter near sources of heat or in
direct sunlight.
• When in use, make certain that the inverter is properly
ventilated.
• Do not use the inverter near flammable materials,
fumes, or gases.
• Always operate the inverter in accordance with the
instructions in this manual. Failure to do so may result
in property damage, personal injury, or loss of life.
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TROUBLESHOOTING
PROBLEM: TV Interference
Problem Solution
Electrical interference from Add a Ferrite data line filter
inverter. on to the TV power cord.
This filter is available at
RadioShack,
part number 273-105.
PROBLEM: Low or No Output Voltage
Problem Solution
Inverter fuse blown. Replace fuse according to
Guidelines in "Don’t Blow
A Fuse" Section of this
manual.
Make sure that inverter is
connected to power source
with correct polarity.
Using incorrect type of Use true RMS reading
voltmeter to test output meter.
voltage. See "For You Technical
Types"
Section of this manual.
TROUBLESHOOTING
PROBLEM: Low Battery Alarm On All The Time
Problem Solution
Input voltage below Keep input voltage above
10.5 volts. 10.5 volts to maintain
regulation.
Poor or weak battery Replace battery.
condition.
Inadequate power being Use lower gauge wire.
delivered to the inverter
or excessive voltage drop.
Yellow LED on
Problem Solution
Equipment has a high Turn inverter power switch
start up surge. OFF (O) and then ON (l)
again until the inverter
powers your appliance.
Repeat as necessary
to get your appliance
"started".
Battery voltage below Recharge or replace
10 volts. battery.
Equipment being operated Use a higher capacity
draws too much power. inverter or do not use this
equipment.
Inverter is too hot (thermal Allow inverter to cool.
shutdown mode). Check for adequate
ventilation. Reduce the
load on the inverter to
rated continuous power
output.
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TROUBLESHOOTING
PROBLEM: TV Does Not Work
Problem Solution
TV does not turn on Try rocking the ON/OFF
switch of the inverter while
leaving the TV ON
(see page 7).
Contact TV manufacturer
for start-up surge and/or if
TV is compatible with a
modified sine wave.
A larger inverter may be
required.
SPECIFICATIONS
WHISTLER 750 WATT INVERTER SPECIFICATIONS
Maximum Continuous Power .....................750 Watts
Maximum Surge Capability (Peak Power)1500 Watts
No Load Current Draw....................................<0.35 A
Waveform....................................Modified Sine Wave
Operating Input Voltage Range.....9.5 – 16 Volts DC
AC Receptacle..................................... Three 3 Prong
Fuses...............................Three 35 Amp (Spade Type)
Approximate Dimensions.....14" H x 7.25" W x 3" D
Approximate Weight.........................................4.5 lbs
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WARRANTY
Consumer Wa rr a n t y
The Whistler PP750AC is warranteed to the original purc h a ser for a period of two years, from the date of original purchase, against all defects in materials and workmanship. T h i s
limited warranty is void if the unit is abused, modified,
installed impro p e r l y, had its housing removed, or has a
missing serial number. T h e re are no express warranties cov-
ering this product other than those set forth in this warr a n t y.
All express or implied warranties for this product are limited
to two years. Whistler is not liable for damages arising fro m
the use, misuse, or operation of this pro d u c t .
S e rvice Under Wa rr a n t y
During the warranty period, defective units will be re p a i re d
or replaced (with the same or a comparable model), at
W h i s t l e r’s option, without charge to the purchaser when
re t u rned with a dated store receipt to the address below.
I n v e rters re t u rned without a dated store receipt will be handled as described in section “Service Out Of Wa rr a n t y.”
When re t u rning a unit for service under warr a n t y, please follow these instru c t i o n s :
1. Ship the inverter in the original carton or in a suitable sturdy equivalent, fully insured, with re t u rn receipt re q u e s t e d ,
and shipping charges prepaid to:
Whistler Repair Dept.
1201 North Dixieland Road
Rogers, AR. 72756
WARRANTY
I M P O RTA N T: Whistler will not assume responsibility for loss
or damage incurred in shipping. There f o re, please ship your
i n v e rter insured with re t u rn receipt re q u e s t e d .
2. Include with your unit the following information, clearly printed:
• Your name and street address (for shipping via UPS),
a daytime telephone number, (No P.O. Box please) and email
a d d ress (if applicable).
• A detailed description of the problem, i.e. Unit powers up but
no AC output.
• A copy of your dated store receipt or bill of sale.
3. Be certain your inverter is re t u rned with its serial number. For
re f e rence, please write your unit’s serial number in the following
space: s/n __________________.
I n v e rters without serial numbers are not covered under warr a n t y.
I M P O RTA N T: To validate that your inverter is within the warr a nty period, make sure you keep a copy of your dated store re c e i p t !
You may register your warranty online at www. w h i s t l e rg ro u p . c o m ,
h o w e v e r, for warranty verification purposes, a copy of your dated
s t o re receipt must accompany any unit sent in for warranty work.
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WARRANTY
Service Out Of Warranty
Inverters will be repaired at “out of warranty” service rates
when:
• The unit’s original warranty has expired.
• Dated store receipt is not supplied.
• The unit has been returned without its serial number.
• The unit has been abused, modified, installed
improperly, or had its housing removed.
The out of warranty service fee for your 750 watt Whistler
inverter is $70.00 (U.S.). If you require out of warranty service, please return your inverter as outlined in the section
“Service Under Warranty” along with a certified check or
money order for the correct amount. Payment may also be
made by MasterCard, VISA or American Express; person-
al checks are not accepted. In the event repairs cannot
be covered by the service fee, you will be contacted by a
Whistler technical service specialist who will outline
options available to you. If you elect not to have your
inverter repaired/replaced, it will be returned to you along
with your certified check or money order.
IMPORTANT: When returning your inverter for service, be
certain to include a daytime telephone number and email
address (if applicable).
Consumer Relations
If you have questions concerning the operation of your
Whistler invert e r, or re q u i re service during or after the
w a rranty period, please call Consumer Relations at
1-800-531-0004. Representatives are available to answer
your questions Monday - Friday from 8:00 a.m. to 5:00 p.m.
( C T ) .
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NOTES
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