Dura Heat DFA400T2 User manual

PORTABLE
FORCED AIR HEATERS
“USER’S MANUAL”
Before the first use of this heater, please read this USER’S MANUAL very
carefully. This USER’S MANUAL has been designed to instruct you as to
the proper manner in which to assemble the heater, maintain the heater,
store the heater, and most importantly, how to operate the heater in a safe
and efficient manner. Please keep this manual for future reference.
LISTED
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World Marketing of America, Inc.
RT.22 West, P.O. Box 192
Mill Creek, PA 17060
Telephone : [phone] (9AM - 4PM EST)
www.yourheater.com
MODEL : DFA400T2
IMKFA400DH-KCT

1
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
DANGER:IMPROPER USEOF THIS HEATER CAN RESULT IN SERIOUS INJURY OR DEATH
FROM BURNS, FIRE, EXPLOSION, ELECTRICALSHOCK AND/OR CARBON
MONOXIDE POISONING.
WARNINGS:
1. RISKOF INDOORAIR POLLUTION!
•Usethis heater only in well ventilated areas. Provideat leasta three-squarefoot(2,800sq. cm.)
opening offreshoutside air foreach100,000 BTU/hr.of heaterrating.
•People withbreathingproblems should consult a physician before using the heater.
•Carbon monoxidepoisoning: Early signs of carbon monoxide poisoning resemble the flu, with headaches, dizziness
and/ornausea. If youhave thesesigns,theheatermay not be working properly.
Get fresh air at once!Have the heaterserviced. Some people aremore affected by carbon monoxide than others.
These include pregnant women, persons with heart or lungdiseaseoranemia,those under the influence ofalcohol, or
those at highaltitudes.
•Neveruse thisheaterinliving orsleepingareas.
2. RISK OFBURNS/FIRE/EXPLOSION!
•NEVERuse fuel suchas gasoline,benzene, paint thinners or otheroil compounds in thisheater.
(RISKOFFIREOREXPLOSION)
•NEVERuse this heaterwhere flammable vapors may be present.
•NEVERrefill the heaters fuel tank while heateris operatingor isstill hot.
Minimum Clearances: Outlet: 8 feet (250cm) /Sides, top and rear:4feet (125cm)
•NEVERblock air inlet (rear) or air outlet (front) of heater.
•NEVERuse duct work in front orbehindof heater.
•NEVERmove, handle, service a hot,operating orpluggedin heater.
•NEVERtransportheater with fuel in it’s tank.
•When used with an optional thermostat or if equipped with athermostat heater may startat any time.
•ALWAYSlocate heaterona stable and level surface.
•ALWAYSkeep childrenandanimalsaway fromheater.
•Bulkfuel storage should be a minimum of 25 ft. from heaters, torches,portable generators orother sourcesof ignition.
All fuel storage should be inaccordance with federal, state orlocal authorities having jurisdiction.
3. RISK OF ELECTRIC SHOCK!
•Useonly the electrical power(voltage and frequency) specifiedon themodel plate of the heater.
•Useonly a three-prong,grounded outlet andextension cord.
•ALWAYSinstall the heaterso that it is not directly exposedto waterspray, rain,drippingwater orwind.
•ALWAYSunplug the heaterwhen not inuse.
MASSACHUSETTS RESIDENTS: Massachusetts state law prohibits the use of this heater in any
building which is used in whole or in part for human habitation. Use of this heating device in
Massachusetts requires local fire dept. permit (M.E.L.C. 148, Section 10A.)
CANADIAN RESIDENTS: Use of this heater shall be in accordance with authorities having
jurisdiction and CSA Standard B139.
NEW YORK CITY RESIDENTS: For use only at construction sites in accordance with applicable NYC
codes under NYCFD certificate of approval # 5034 and 5037.
CAUTION :Hot while in operation. Do not touch. Keep children,
clothing and combustibles away from heater.
•NEVERuse any fuel otherthan 1-K kerosene, #1/#2 diesel/fuel oil, JETA or JP-8fuelsin thisheater.

Figure 1. DFA400T2 MODEL
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
ITEM PAGE #
1EDIUGYTEFAS-SNOITUACERP 2NOITCUDORTNI.1 2SERUTAEF.2 3YLBMESSADNAGNIKCAPNU.3 4FUELS.4 5NGISEDRETAEHFOWEIVREVO.5 5RETAEHRUOYGNILEUF.6 6NOITAREPO.7 8RETAEHRUOYFOEGAROTSMRETGNOL.8 9ECNANETNIAM.9
15
14
EDIUGGNITOOHSELBUORT11 REPLACING FUSE10
16MARGAIDGNIRIW12 17SNOITACIFICEPS13 18GNIWARDSTRAPDEDOLPXE14 19TSILSTRAP15
1. INTRODUCTION
Please read this USER’S MANUAL carefully. It will show you how to assemble, maintain, and operate the
heater safely and efficiently to obtain full benefits from its many built-in features.
2. FEATURES
CONTENTS OF USER’S MANUAL
2
Hot Air Outlet
Lower Shell
Fuel Gauge
Fuel Cap
Lamp
Thermostat Knob
Room Temp. Display
Operating Switch Power Cord(Piggy Back)
Fuel Drain Bolt
Fuel Tank
Fan Guard
Cord Wrap
Handle
Handle
Upper Shell

3
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
3. UNPACKING AND ASSEMBLY
1. REMOVE THE HEATER AND ALL PACKING MATERIALS FROM THE BOX. (See Fig.2)
NOTE: Save the shipping carton and packing materials for future storage.
Handle
Wheels Nuts
Screw(S)Screw(L)
Washers
Bushings )S(stuNpaC)L(stuNpaC
Cord Wrap
Hardware Kit Part No : HW-KFA1019
Wheel Support Frame
Handle
Threaded Axle
Figure 2. PACKING MATERIALS
2. ASSEMBLING
Tools Required
Medium Phillips Screwdriver
24 Socket Wrench
Assembling wheel & handle & cord wrap
1) Slide threaded axle through the rear section of the wheel support frame.
2) Slide one axle bushing on to each side of the axle. Slide one wheel on to each side of the axle.
Attach one cap nut on to each side of the threaded axle and tighten well.
3) Place heater on wheel support frame. Make sure air inlet end (rear) of heater is over wheels. Align the
holes on fuel tank flange. Insert screws(L) through handles (front and Rear), fuel tank flange, and
wheel support frame. Insert screws(S) through rear handle, fuel tank flange, and washer(S) as shown
in figure 3 and attach nut finger tight after each screw is inserted.
4) After all screws are inserted, tighten nuts firmly.
5) Align the hole on the rear handle with the mounting hole on the cord wrap.
6) Insert screws through cord wrap, rear handle as shown in Figure 3 and attach nut finger tight after each
screw is inserted.
7) After all screws are inserted, tighten nuts firmly.
CAUTION: DO NOT OPERATE heater without support frame assembled to tank.

4
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
Figure 3. Assembling Handle & Wheel and Cord wrap
Handle
Fuel Tank Flange
Wheel Support Frame
Wheel
Cap Nut(L)
Screw(L)
Screw(S)
Screw(S)
Air Inlet
Threaded Axle
Washer
Bushing
Cap Nut(S)
Nut
Cord Wrap
4. FUELS
For optimal performance of this heater, it is strongly suggested that 1-K kerosene be used. 1-K kerosene has
been refined to virtually eliminate contaminants, such as sulfur. Which can cause a rotten egg odor during
is not available. Be advised that these fuels do not burn as clean as 1-K kerosene, and care should be taken to
KEROSENE SHOULD ONLY BE STORED IN A BLUE CONTAINER THAT IS CLEARLY
MARKED “KEROSENE”. NEVER STORE KEROSENE IN A RED CONTAINER.
Red containers are associated with gasoline.
NEVER store kerosene in the living space. Kerosene should be stored in a well ventilated place outside the
living area.
NEVER
NEVER use fuel such as gasoline, benzene, alcohol, white gas, camp stove fuel, paint thinners, or other oil
compounds in this heater. These are volatile fuels that can cause an explosion or uncontrolled flames.
NEVER store kerosene in direct sunlight or near a source of heat.
NEVER use kerosene that has been stored from one season to the next. Kerosene deteriorates over time.
“OLD KEROSENE” WILL NOT BUR N PROPERLY IN THIS HEATER.
the operation of the heater. However, #1/#2 diesel/fuel oil, JET A or JP-8 fuels may also be used if 1-K kerosene
provide more fresh air ventilation to accommodate any added contaminants that may be added to the heated space.
#2 diesel/fuel oil heavier than 1-K kerosene in extreme cold temperatures without nontoxic anti-icer additives
will not ignite properly.
use any fuel other than 1-K kerosene (#1/#2 diesel/fuel oil, JET A or JP-8 fuels are acceptable substitutes)

5
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
5. OVERVIEW OF HEATERS DESIGN
Fuel System: This heater is equipped with a Fuel
pump(Gear)that pulls fuel through the fuel line connected
to the fuel tank and then pushes fuel through a filter and a
solenoid valve and out the burner head nozzle.
This fuel is sprayed into the combustion chamber in a
fine mist.
“Sure Fire Ignition”: The electronic ignitor sends
voltage to a specially designed spark plug.
The spark plug ignites the fuel and air mixture.
The Air System: The heavy duty motor turns a fan that forces air into and around the
combustion chamber. This air is heated and then forced out the front of the heater.
The Safety System:
A. Temperature Limit Control: This heater is equipped with a Temperature Limit Control designed to
turn off the heater should the internal temperature rise to an unsafe level.
If this device activates and turns your heater off it may require service.
C. Flame-Out Sensor : Utilizes a photocell to monitor the flame in burn chamber during normal operation.
It will cause the heater to shut-off should the burner flame extinguish.
6. FUELING YOUR HEATER
NEVER FILL THE HEATER FUEL TANK IN THE LIVING SPACE: FILL THE TANK
OUTDOORS.
DO NOT OVERFILL YOUR HEATER AND BE SURE HEATER IS LEVELED.
IMPORTANT NOTICE REGARDING FIRST IGNITION OF HEATER:
The first time you light the heater, it should be done outdoors. This allows the oils, etc. used in
manufacturing the heater to burn off outside.
WARNING!!: NEVER REFILL HEATER FUEL TANK WHEN HEATER IS OPERATING OR
STILL HOT.
Internal Shut-Off Temp. Reset Temperature
Plus/Minus 10 Degrees Plus/Minus 10 Degrees
176˚F/80˚C 122˚F/50˚C
B. Electrical System Protection : This heaters electrical system is protected by a fuse mounted to the PCB
assembly that protects it and other electrical components from damage.
If your heater fails to operate check this fuse first and replace as needed.
FUSE TYPE: 250 VAC / 8 amps

6
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
7. OPERATION
A.) VENTILATION
RISK OF INDOOR AIR POLLUTION/USE HEATER ONLY IN WELL VENTILATED AREAS.
Provide at least a three-square foot (2,800 sq. cm.) opening of fresh outside air for each 100,000 BTU/hr.
of heater rating.
B.) OPERATION
TO START HEATER
3. Plug power cord of heater into three-prong, grounded extension cord.
Extension cord must be at least six feet long.
Extension Cord Wire Size Requirements
• 6 to 100 feet long, use 14 AWG conductor.
• 101 to 200 feet long, use 12 AWG conductor.
• 201 to 300 feet long, use 10 AWG conductor.
• 301 to 400 feet long, use 8 AWG conductor.
• 401 to 500 feet long, use 6 AWG conductor.
4.
Turn “Thermostat Control Knob” to desired setting (setting range : 40℉~110℉) and push operating
switch to “ON” position, power indicator lamp and room temp. display will light and heater will start.
NOTE: Room Temp. display indicates as following,
• When room temp. is less than 0℉ : “Lo”
• When room temp. is between 0℉and 99℉ : Indicates in figure.
• When room temp. is more than 99℉ : “Hi”
If heater does not start, the thermostat setting may be too low, turn “THERMOSTAT CONTROL
Knob” to higher position to start heater. If heater still does not start, turn operating switch to “OFF”
and then to “ON” position. (Figure 4). If heater still does not start, see Troubleshooting Guide on
page 13.
INDICATOR LAMP
ROOM TEMP. DISPLAY
THERMOSTAT CONTROL KNOB
OPERATING SWITCH
Figure 4. CONTROL PARTS
NOTICE : The major electrical components of this heater are protected by a safety fuse mounted to the PCB board.
If your heater fails to start, check this fuse first and replace as necessary. You should also check your
power source to insure that proper voltage and frequency are being supplied to the heater.
1. Fill fuel tank with fuel.
NOTE : Kerosene is recommended when the temperature drops below 0℉ (-18℃) to prevent
ignition delay or failure.

TO STOP HEATER
1. Turn operating switch to “OFF”.
This will cause heater flame to go out.
The motor will continue to run during the cooling cycle.
(Room Temp. Display will show “CC” during the cooling cycle)
This allows the fan to cool the combustion chamber. When the cooling cycle
(approx.1Min) is finished, the motor will stop.
Do not unplug heater until cooling cycle is finished.
2. Unplug power cord.
3. To temporarily stop heaters, set thermostat at a temperature lower than air around heater,
Heater will cycle back on if air temperature around heater matches thermostat setting.
TO RESTART HEATER
1. Wait until cooling cycle is finished after stopping heater.
2. Repeat steps under to start HEATER.
The cooling cycle cools the combustion chamber.
7
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
Figure 5. Piggyback Power Cord
CAUTION ; Never unplug heater while heater is running
Heater must go through cooling cycle. The cooling cycle cools the
combustion chamber. Damage to heater can occur if combustion chamber
is not cooled. Do not restart heater until cooling cycle is complete.
Always cover electric outlet when not in use.
Do not plug in and use an appliance of more than 120V 5A current in this outlet.
WARNING ; SHOCK HAZARD!
CAUTION ; Do not restart heater until cooling cycle is finished.
PIGGYBACK POWER CORD
COVER
ELECTRIC OUTLET

8
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
8. LONG TERM STORAGE OF YOUR HEATER
1. Remove fuel drain bolt from rear bottom side of fuel tank using 3/4” socket or adjustable wrench and
drain.
2. Using a small amount of kerosene, swirl and rinse the inside of the tank.
NEVER mix water with the kerosene as it will cause rust inside the tank.
Pour the kerosene out making sure that you remove it all.
IMPORTANT : Do not store kerosene over summer months for use during next heating season.
Using old fuel could damage heater.
3. Reinstall Fuel Drain Bolt to Fuel tank and tighten firmly using 3/4” socket or adjustable wrench.
IMPORTANT : Before reinstalling the fuel drain bolt, make sure the seal is on the bolt. If the seal is
not used the bolt cannot be installed correctly and the fuel tank will leak.
4. Store heater in dry well ventilated area. Make sure storage place is free of dust and corrosive fumes.
5. Store the heater in the original box with the original packing material and keep the USER’S MANUAL
with the heater.
Fuel Drain Bolt
Seal
Figure 6. Drain Bolt

9. MAINTENANCE
WARNING!! NEVER SERVICE HEATER WHILE IT IS PLUGGED IN
OR WHILE HOT!
USE ORIGINAL EQUIPMENT REPLACEMENT PARTS. Use of third party
or other alternate components will void warranty and may cause unsafe
operating conditions.
A.) UPPER SHELL REMOVAL
B.) FAN BLADES AND AIR DEFLECTOR
CLEAN EVERY SEASON OR AS NEEDED.
- Remove upper shell (See figure 7 above)
- Clean fan blades and air deflectors using a soft cloth
moistened with kerosene or solvent.
- Dry fan blades and air deflectors thoroughly.
- Reinstall upper shell.
AIR DEFLECTOR
FAN BLADE
Figure 8. Fan Blades and Air Deflectors
-Remove screws along each side and top of
heater using medium phillips screw driver.
-Lift upper shell off.
(See Figure 7)
Figure 7. Upper Shell Removal
9
SHELL UPPER
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
SCREW

C.) SPARK PLUG
CLEAN AND REGAP EVERY 600 HOURS
OPERATION OR REPLACE AS NEEDED.
- Remove upper shell (See page 9).
- Removespark plug wire fromspark plug
(See Figure9)
- Remove spark plug from burner head using
medium phillips screw driver.
- Clean and regap spark plug electrodes to
0.14”(3.5mm) gap.
- Reinstall spark plug in burner head.
- Attach spark plug wire to spark plug.
- Reinstall upper shell.
D.) NOZZLE
REMOVE DIRT IN NOZZLE AS NEED (See page 14)
- Remove upper shell (See page 9).
- Remove fuel line from solenoid valve using
1/4” wrench.
- Remove spark plug wire from spark plug.
- Remove spark plug from burner head using medium
phillips screw driver.
- Remove five screws using medium phillips screwdriver
and remove burner head from
combustion chamber.
- Carefully remove nozzle from burner head
using 5/8” socket wrench.
- Blow compressed air through face of
nozzle.
(this will remove any dirt in nozzle)
- Inspect nozzle for damage. If damaged
or clogged, replace nozzle.
- Make sure plug is in place on burner
head.
- Reinstall nozzle into burned head and
tighten firmly. (175~200 inch-pounds)
- Reinstall spark plug in burner head.
- Attach burner head to combustion
chamber.
- Attach spark plug wire to spark plug.
- Attach fuel line to solenoid valve
tighten firmly.
- Replace upper shell.
Figure 9. Spark Plug
BURNER HEADSPARK PLUG
SPARK PLUG WIRE
GAP
Figure 10. NOZZLE
BURNER HEAD
NOZZLE FOACE
FUEL LINE
SOLENOIO VALUE
SPARK PLUG
SPARK PLUG WIRE
NOZZLE
PLUG
10
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!

11
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
F.) FUEL LINES
TIGHTENING FUEL LINES ANNUALLY OR AS NEEDED.
- Remove upper shell (See page 9).
- Use 1/4” wrench and tighten fuel lines(A) at solenoid valve
and at pump. (See Figure 12)
- Remove fan guard (See Figure 13)
- Use 3/8” wrench and tighten fuel lines (B) at pump, pump fuel filter assembly.
- Reinstall fan guard.
E.) PHOTOCELL
CLEAN PHOTO CELL ANNUALLY OR AS NEEDED.
- Remove upper shell (See Page 9)
- Remove photocell from photocell Bracket and disconnect photocell from connector.
- Clean photocell lens with cotton swab.
- Inspect photocell lens for damage. If damaged, replace photocell.
PHOTOCELL BRACKET
PHOTOCELL LENS INSTALL PHOTOCELL
1)INCORRECT
2)CORRECT
PHOTOCELL
CONNECTOR
Figure 11. Clean photocell Lens
Figure 12. Tighten fuel line Figure 13. Remove fan guard
BURNER HEAD
FUEL LINE(B)
SOLENOID
VALVE
FAN GUARD
SCREW FLAT WASHER
FUEL LINE(A)

12
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
G.) FUEL FILTER
CLEAN TWICE PER HEATING SEASON OR AS NEEDED.
Tank Fuel Filter
Pump Fuel Filter
- Remove fan guard.(See page 11).
- Disconnect fuel line (B) from pump and
pump fuel filter assembly with 3/8” wrench
(See Figure 14)
- Remove two screws that fix bracket-filter to
shell lower and remove bracket-filter.
- Carefully pry fuel filter loose from fuel tank
with flat end of screw driver.
- Wash fuel filter and fuel lines with clean
kerosene.
- Replace fuel filter into fuel tank.
- Replace bracket-filter to shell lower.
- Connect fuel lines (B) to pump and pump
fuel filter assembly.
- Reinstall fan guard.
- Remove fan guard.(See page 11)
- Unscrew (C.W) filter bottom from filter
topwith adjustable pliers.
- Remove fuel filter, gasket, magnet from
filterbottom.(See Figure 15)
- Wash filter bottom with clean kerosene .
- Wipe inside of filter bottom dry with clean
cloth.
- Wash Fuel filter in clean kerosene.
- Remove dirt attached magnet.
- Put clean magnet, fuel filter and gasket back
in filter bottom.
- Tighten firmly.
Figure 14. Remove Tank Fuel Filter
Figure 15. Fuel Pump Filter
SHELLLOWER BRACKET-FILTER
SCREW
PUMP
PUMPFUEL FILTER ASSEMBLY
FUELLINE(B)
FUELFILTER
FILTER BOTTOM
MAGNET
FUEL FILTER
GASKET
FILTER TOP

13
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
H.) PUMP PRESSURE ADJUSTIMENT
- Remove pressure gauge plug from pump with 1/8” allen wrench.
- Install accessory pressure gauge to pressure gauge port. (See Figure 16)
- Start heater (See operation, page 6)
Allow motor to reach full speed.
- Adjust pressure. (Using a small flat blade screw driver)
Turn pressure adj. Screw to clock wise to increase pressure.
Turn screw to counter clock wise to decrease pressure.
Set pump pressure to 125 PSI.
- Stop heater (See operation, page 6)
- Remove pressure gauge. Replace pressure gauge plug in pressure gauge port.
PRESSURE GAUGE PLUG
PRESSURE GAUGE PORT
PRESSURE ADJ.SCREW
PUMP
PRESSURE GAUGE
NOTE: USE ONLY ORIGINAL EQUIPMENT REPLACEMENT PARTS.
USE OF ALTERNATE OR THIRD PARTY COMPONENTS WILL VOID ANY WARRANTY
AND MAY CAUSE UNSAFE OPERATING CONDITION.
Figure 16. Adjusting Pump Pressure

14
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
10. REPLACING FUSE
NOTICE : This heater is fuse protected.
If your heater fails to ignite, DO NOT RETURN YOUR HEATER TO THE
STORE.
Please follow the simple instruction below to inspect and change the fuse.
WARNING : SHOCK HAZARD
To prevent personal injury, unplug the power cord before replacing fuse.
1. Unplug heater.
2. Turn Fuse Cover COUNTERCLOCKWISE 45° using a flat blade screwdriver and remove Fuse
from Fuse Holder.
3. Replace Fuse.
WARNING : FIRE HAZARD
To avoid fire, Do not substitute with a higher or lower current rating.
4. Turn Fuse Cover CLOCKWISE 45° using a flat blade screwdriver while slightly pushing.
NOTE : Specified fuse rating : 250VAC/20A
PROCEDURE FOR REPLACING FUSE
Figure 17. Replacing Fuse
Fuse Holder
Fuse
Fuse Cover

15
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
11. TROUBLE SHOOTING GUIDE
Heater ignites but MAIN PCB 1. Wrong pump pressure 1. See Pump Pressure Adjustment,
assembly shuts heater off after 2. Dirty Fuel Filter page 13.
a short period of time. 3. Dirt in Nozzle 2. See Fuel Filter, page 12.
(Indicator lamp is flickering and 4. Dirty Photocell Lens 3. See Nozzle, page 10.
room temp. display indicates “E1”) 5. Photocell Assembly not 4. Clean Photocell Lens, page 11.
properly installed. (Not 5. Make sure photocell boot is
seeing the flame) properly seated in bracket,
6. Bad electrical connection (See, page 11)
between photocell and MAIN 6. Check electrical connections.
.51egap,margaidgniriweeSylbmessaBCP
7. Defective photocell 7. Replace photocell, page 11.
8. Temperature limit safety
device is overheated 8. Turn operating switch to “OFF” and allow to cool (about 10 min.).
Then turn operating switch to
“ON” position.
2. Blown fuse 2. Replace safety fuse on cover
display.
Heater will not ignite but 1. No fuel in tank 1. Fill tank with kerosene
motor runs for a short period 2. Wrong pump pressure 2. See Pump Pressure Adjustment,
of time. (Indicator lamp is 3. Carbon deposits on spark page 13.
flickering and room temp. display plug and/or improper gap 3. See Spark Plug, page 10.
indicates “E1”) 4. Dirty fuel filter 4. See Fuel Filter, page 12.
5. Dirt in nozzle 5. See Nozzle, page 10.
6. Water in fuel tank 6. Flush fuel tank with clean
7. Bad electrical connection kerosene, page 9.
between ignitor and MAIN 7. Check electrical connections,
PCB assembly See wiring diagram, page 15.
8. Ignitor wire is not attached to .gulpkrapsoteriwrotingihcattA.8gulpkraps
9. Defective ignitor See Spark Plug, page 10.
9. Replace ignitor.
10.Defective solenoid valve 10.Check electrical connections and
(not opening) voltage to solenoid valve. If
defective, replace solenoid valve.
Fan does not turn when heater 1. Thermostat setting is too low 1. Turn thermostat control knob
is plugged in and operating switch 2. Bad electrical connection to a higher setting
was in the “ON” position between motor and MAIN 2. Check electrical connections,
(Indicator lamp is on or flickering) .51egap,margaiDgniriWeeSylbmessaBCP
(Indicator lamp is flickering and 1. Sensor failure. 1. Replace sensor.
room temp. display indicates “E2”) .51egap,margaidgniriweeS
(Indicator lamp is flickering and 1. Thermostat switch failure 1. Replace switch
room temp. display indicates “E3”) See wiring diagram, page 15.
Heater will not turn-on
(Indicator lamp is off)
1. No electrical power 1. Check to insure heater cord and
extension cord are plugged in.
Check power supply.
TROUBLE POSSIBLE CAUSE CORRECTIVE ACTION

16
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
12. WIRING DIAGRAM
20A/250VAC
FUSE
WHT
BLK
AC120V
60Hz
OPERATING SWITCH
THERMOSTAT
(LED)
(TEMP. CONTROL)
POWER LAMP
WHITE
WHITE
PHOTOCELL
POWER
PLUG
CN5 YEL
YEL
CN8 CN1(AC1)/
CN6
CN2(AC2)/
RED
CONTROL PCB
BLACK
WHITE
CAPACITOR
SPARK PLUG
45uF/400Vac
WHITE
BLACK
WHITE
ORANGE
RED
CN3 WHITE
BLACK
BLACK
MOTOR
PUMP
CONTROL
LIMIT
IGNITOR
BLACK
BLACK
WHITE
CN4
CN7
BLACK
VALVE
SOL.
ROOM
SENSOR
EARTH
BLACK
GREEN

17
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
13. SPECIFICATIONS
DFA400T2LEDOM
000,004rH/UTB
Fuel Consumption-Gal./ ( ./Hr) 3.0(11.36)
Fuel Tank Capacity-Gal ( ) 29.0(110.0)
Pump Pressure PSI (kgf/ ) 125(8.79)
4.4/06/CAV021spmA/zH/stloV
1esahP
Size(D W H), Inch( ) 52.5”×31.4”×32.8”(1,334×798×834)
Weight Ibs. ( 150(68.0))
DFA400T2
32.8"
52.5" 31.4"

18
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
14. EXPLODED PARTS DRAWING (DFA400T2 MODEL)
NOTE: SPECIFY MODEL NUMBER AND PART NUMBER WHEN ORDERING PARTS.
48
32
33
34
14
31
7
9
11
10
2
40
43
27
17
18
1
3
5
12
14
14
18
19
14
14
16
21
22
24
25
11 13
16
23
26
28
29
14
37
14
30
20
11
14
14
30
6
15
39
42
41
19
38
14
35
36
14

NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
19
NEVER LEAVE THE HEATER
UNATTENDED WHILE BURNING!
15. PARTS LIST
FOR TECHNICAL ASSISTANCE SEE YOUR LOCAL RETAILER OR CONTACT US AT:
PHONE: [phone] TECH.: 814-643-2299 FAX: [phone]
EMAIL: [email protected] VISIT OUR WEBSITE AT WWW.YOURHEATER.COM
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KEY No.
PART No.
DESCRIPTION
Quantity
Fuel Tank Assembly
Fuel Drain Bolt
Fuel Gauge
Fuel Filter
Fuel Cap
Filler Neck Assembly
Space Support
Card Support
Cord Bushing
Power Cord
Bushing Grommet(L)
Shell Lower
Bushing Grommet(S)
Flange Screw
Line-Fuel
Harness-Burner
Cone-Outside
Clip Nut
Chamber Assembly
Air Deflector
Air Deflector
Burner Head Assembly
Bracket Photocell
Screw BH1
Photocell
Temperature Limit
Screw PH2
Igniter
Cover Igniter
Motor & Pump Assembly
P.C.B Assembly
Cover Display
Window Display
Operating Switch
Fuse Holder
Fuse
Safe Guard Assembly
Bracket-Filter
Mesh Guard
Impeller Washer
Fan Assembly
Bolt Standard Socket
Shell Upper
2151-0010-00
4329-0072-00
2156-0053-00
3221-0009-00
2151-0041-00
2155-0007-00
3713-0004-00
3713-0016-00
3712-0013-00
3980-0268-00
3231-0121-00
3111-0195-07
3231-0120-00
4319-0015-00
3740-0031-00
39D0-0781-00
2153-0012-01
3131-0182-00
2152-0037-00
3131-0306-00
3131-0307-00
2152-0058-00
3131-0159-00
4311-0068-00
2153-0007-00
38C0-0032-00
4312-0021-00
39E0-0021-00
3131-0309-01
2154-0025-00
215A-0075-00
3121-0587-09
3231-0113-00
39A0-0209-00
3930-0012-00
3920-0061-00
2153-0011-01
3131-0465-00
3121-0336-01
3131-0240-00
2154-0021-00
4323-0005-00
3111-0196-07
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