Master Mh-600t-kfa Manual

Model Number

MH-600T-KFA

CONSUMER: READ AND SAVE THESE INSTRUCTIONS

GENERAL HAZARD WARNING: Be sure to comply with the

instructions and warnings provided with this heater, or death,

serious bodily injury and property loss, damage from the hazards

of fire, explosion, burn,asphyxiation, and carbon monoxide poisoning can result.

Only persons who can follow and understand these instructions should use or service this

heater. If you need heater information such as an instruction manual, labels, etcetera,

contact the manufacturer.

DANGER

1 Industrial Blvd #101, Sauk Rapids, MN 56379 USA • Toll Free (800) 779-3267

Fax: 320-251-2922 • Web: www.masterindustrialproducts.com • Email: [email protected]

User’s Manual &

Operating Instructions

KEROSENE FORCED AIR

HEATER

IMPORTANT: Read and understand all of the directions in this manual before assembling,

starting, or servicing the heater. Improper use of this heater can cause serious injury. Keep

this manual for future reference. The requirements of local authorities having jurisdiction

shall be followed.

Not for use in residential living areas or in non-adequately ventilated

enclosed spaces. For outdoor use. Indoor use permitted for: The

temporary heating of adequately ventilated buildings or structures

under construction, alteration or repair.

DANGER

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

This is a kerosene direct-red, forced air heater. Kerosene forced

air heaters are primarily intended for use for temporary heating

of buildings under construction, alteration or repair. Direct-red

means that all of the combustion products of the heater enter the

heated space. This appliance is rated at 98% combustion efciency,

but does produce small amounts of carbon monoxide. Carbon

monoxide is toxic.

Humans can tolerate small amounts of carbon monoxide, and

precautions should be taken to provide proper ventilation. Failure

to provide proper ventilation according to this manual can result

in death. Early signs of carbon monoxide poisoning resemble the

u. Symptoms of improper ventilation are: Symptoms of improper

ventilation / carbon monoxide poisoning are:

Headache • Dizziness •Nausea • Dry Mouth Sore Throat •

Burning of Nose and Eyes

For optimal performance of this heater, it is strongly suggested

that K-1 kerosene be used. K-1 kerosene has been refined to

virtually eliminate contaminants, such as sulfur, which can cause

a rotten egg odor during the operation of the heater. However, #1

or #2 fuel oil (diesel fuel) may also be used if K-1 kerosene is not

available. Be advised that these fuels do not burn as clean as K-1

kerosene, and care should be taken to provide more fresh air

ventilation to accommodate any added contaminants that may be

added to the heated space. Use of #1 or #2 fuel oil may result in

more periodic maintenance.

Risk of indoor air pollution!

- Use this heater only in well ventilated areas! Provide, at heater

level, at least a three square foot (2,800 sq. cm) opening of

outside air for every 100,000 BTU/hr of heater rating.

- People with breathing problems should consult a physician

before using the heater.

- Carbon Monoxide Poisoning: Early signs of carbon monoxide

poisoning resemble flu-like symptoms such as headaches,

dizziness, and/or nausea. If you have these symptoms, your

heater may not be working properly.

- Get fresh air at once! Have the heater serviced. Some people

are more affected by carbon monoxide than others. These include

pregnant women, those with heart or lung problems, anemia, or

those under the influence of alcohol, or at high altitudes.

Risk of burns / fire / explosion!

- NEVER use fuels such as gasoline, benzene, paint thinners,

crankcase drainings, or other oil compounds in this heater (RISK

OF FIRE OR EXPLOSION).

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 department

permit (M.G.L.C. 148, Section 10A).

NEW YORK CITY RESIDENTS: The New York City

Fire Code prohibits the storage, handling and use of kerosene

fueled heaters for space heating. Any person violating that

provision may be punished by a fine up to $10,000 and a term

of imprisonment of up to 6 months.

CALIFORNIA RESIDENTS: This product contains

chemicals, including lead, known to the State of California to

cause birth defects or other reproductive harm. Wash hands

after handling.

Table of Contents

Safety Information ......................................................................2-3

Features ........................................................................................ 3

Unpacking...................................................................................... 4

Assembly....................................................................................4-6

Operation....................................................................................6-9

Maintenance.............................................................................9-11

Wiring Diagram............................................................................ 11

Exploded View............................................................................. 12

Parts List ..................................................................................... 13

Troubleshooting Guide ................................................................ 14

Warranty...................................................................................... 15

FIRE, BURN, INHALATION AND

EXPLOSION HAZARD. Keep com-

bustibles such as building materials,

paper or cardboard a safe distance away from the heater as

recommended by these instructions. Never use the heater in

spaces which contain products such as gasoline, solvents, paint

thinners, dust particles, volatile or airborne combustibles or any

unknown chemicals. This is an unvented portable heater. It

uses air (Oxygen) from the area in which it is used. Adequate

combustion and ventilation air must be provided. Refer to

“Ventilation” on page 7.

WARNING

DO NOT OPERATE THIS HEATER

UNTIL YOU HAVE READ AND

THOROUGHLY UNDERSTAND

THESE SAFETY AND OPERATING INSTRUCTIONS. Failure

to comply with the precautions and instructions provided with

this heater can result in death, serious bodily injury, property

loss or damage from the hazards of fire, soot production, explo-

sions, burns, asphyxiation or carbon monoxide poisoning. Only

persons who can read and understand these instructions should

use or service this heater.

WARNING

Safety Information

Indicates an imminently hazardous

situation which, if not avoided, WILL

result in death or serious injury.

Indicates a potentially hazardous situa-

tion which, if not avoided, COULD result

in death or serious injury.

Indicates a potentially hazardous

situation which, if not avoided, MAY

result in minor or moderate injury.

WARNING

DANGER

CAUTION

CARBON MONOXIDE POISONING MAY

LEAD TO DEATH!

DANGER

WARNING

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

- NEVER refill the heater’s fuel tank while heater is operating or

still hot. This heater is EXTREMELY HOT while in operation.

- Keep all combustible materials away from this heater.

- NEVER block air inlet (rear) or air outlet (front) of heater.

- NEVER use duct work in front or at rear of heater.

- NEVER move or handle heater while still hot.

- NEVER transport heater with fuel in its tank.

- If equipped with a thermostat, the heater may start at any time.

- ALWAYS locate heater on a stable and level surface.

- ALWAYS keep children and animals away from heater.

- Bulk fuel storage should be a minimum of 25 ft. from heaters,

torches, portable generators, or other sources of ignition. All

fuel storage should be in accordance with federal, state, or local

authorities having jurisdiction.

- Never use this heater in living or sleeping areas.

- NEVER use this heater where flammable vapors may be present.

Risk of electric shock!

- Use only the electrical power (voltage and frequency) specified

on the model plate of the heater. Use only a three- prong,

grounded outlet and extension cord.

- ALWAYS install the heater so that it is not directly exposed to

water spray, rain, dripping water, or wind.

- ALWAYS unplug the heater when not in use.

Minimum Clearance From Combustibles

MH-600T-KFA

Top 4 ft. (125 cm)

Sides 4 ft. (125 cm)

Front 10 ft. (305 cm)

Safety Information (Continued)

WARNING

Features

Front Handle

Front

Shell

Lower Shell

Control Panel

Power Cord

Fuel Tank

Fan Guard

Rear

Handle

Rear Shell

Handle Frame

Figure 1. Features of Model MH-600T-KFA

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

Unpacking

Remove the heater and all of the packaging materials from the

shipping carton.

NOTE: Save the box and packaging materials for future storage.

Check the diagram on the following page to be sure that you

have all of the parts required to assemble your heater. If you find

that any parts are missing, call 800-779-3267 for assistance in

receiving the missing components.

Assembly

Front Handle

Handle Frame

Cord Wrap

Rear Handle

Screw (S)

Screw (L)

Fuel Tank Flange

Nut

Wheel Support Frame

Bushing

Cotter Pin

Flat Washer (L)

Wheel (Pneumatic)

Flat Washer (S)

Axle Wheel Tube Valve

Fan Guard

Figure 2. Assembly of Model MH-600T-KFA

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

Assembly

Model MH-600T-KFA

Wheel support frame Yes

Wheels and Axle Yes

Wheel Caps No

Front and Rear Handle Yes

Handle Frame Yes

Cord Wraps Yes

Screws, Nuts, and Washers Yes

Cotter Pins and Bushings Yes

Wheels (Pneumatic)

Screws (L) Screws (S)

Nuts

Flat Washers (S) Flat Washers (L)

Cotter Pins

Bushings

Cord Wraps

TOOLS REQUIRED

• MEDIUM PHILLIPS SCREWDRIVER

• OPEN OR ADJUSTABLE WRENCH

• LONG NOSE PLIERS

ASSEMBLING WHEEL & HANDLE

1. Slide axle through wheel support frame. Install wheel bushings,

flat washers (S) and wheel on axle.

NOTE: When installing wheels, tube valve should face out from

support frame (Figure 2).

2. Place flat washers (L) and cotter pins on axle ends and bend

cotter pins with long nose pliers to secure.

4. 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 through handles (front and rear), fuel tank

flange, and wheel support frame as shown in Figure 2 and

attach nut finger tight after each screw is inserted.

5. After all screws are inserted, tighten nuts firmly.

Do not operate heater without support

frame fully assembled.

Front Handle

Handle Frame

Axle

Rear

Handle

WheelSupport Frame

CAUTION

Figure 3. Component Identication

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

KEROSENE (K-1)

For optimal performance of this heater, it is strongly suggested

that K-1 kerosene be used. K-1 kerosene has been refined to

virtually eliminate contaminants, such as sulfur, which can cause

a rotten egg odor during the operation of the heater. However, #1

or #2 fuel oil (diesel fuel) may also be used if K-1 kerosene is not

available. Be advised that these fuels do not burn as clean as K-1

kerosene, and care should be taken to provide more fresh air

ventilation to accommodate any added contaminants that may be

added to the heated space. Use of #1 or #2 fuel oil may result in

more periodic maintenance. Using diesel fuel can cause excess

soot production. DO NOT use any fuel that is not approved

above.

NOTE: Kerosene should only be stored in a blue container that is clearly

marked “Kerosene.” Never store kerosene in a red container. Red is

associated with gasoline.

- NEVER store kerosene in the living space. Kerosene should be stored

in a well ventilated area outside the living area.

- NEVER use fuel such as, benzene, alcohol, white glass, camp stove

fuel, paint thinners, or other oil compounds in this heater. THESE

ARE VOLATILE FUELS THAT CAN CAUSE A FIRE OR

EXPLOSION.

- 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

BURN PROPERLY IN THIS HEATER.

- Use K-1 kerosene in this heater. A suitable substitute is #1 fuel.

OVERVIEW OF HEATER DESIGN

Fuel System: This heater is equipped with an electric magnet

pump that forces fuel through the fuel line connected to the

fuel intake, and then through a nozzle in the burner head.

This fuel is then sprayed into the combustion chamber in a

fine mist.

“SureFire 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. Here, the

air is heated and then forced out the front of the heater.

THE SAFETY SYSTEM

Temperature Limit Control: This heater is equipped with a

Temperature Limit Control designed to turn the heater off should the

internal temperature rise to an unsafe level. If this device activates and

turns your heater off, it may require service. Once the temperature falls

below the reset temperature, you will be ale to start your heater.

Electrical System Protection: This heater’s electrical system is

protected by a fuse that protects it and other electrical components from

damage. Fuse is located inside of an in-line “FUSE BARREL”. If your

heater fails to operate, check this fuse first and replace as needed.

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.

FUELING YOUR HEATER

IMPORTANT: 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. The

initial burn must last at least 10 minutes.

VENTILATION

Risk of indoor air pollution. Use

heater only in well ventilated areas.

Provide a fresh air opening of at least 3 square feet. (2,800 sq.

cm.) for each 100,000 BTU/Hr. rating. Provide extra fresh air if

more heaters are being used.

TO START HEATER

1. Fill fuel tank with K-1 kerosene.

2. Attach fuel cap.

3. Plug power cord into three-prong, grounded extension cord,

and plug the extension cord into a three-prong 120V grounded

outlet. The extension cord must be at least six feet long.

Extension Cord Wire Size Requirements:

• 6 to 10 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. Push “OPERATION BUTTON” (see Figure 5). Power indicator

lamp and room temperature display will light and heater will

start. Push the up and down arrow keys on the control panel to

adjust the thermostat settings.

Operation

NEVER REFUEL THIS HEATER

WHILE IT IS HOT OR OPERATING.

FIRE OR EXPLOSION COULD

RESULT.

WARNING

NEVER FILL THE FUEL TANK

INDOORS. ALWAYS FILL THE

TANK OUTDOORS. BE SURE THAT

THE HEATER IS ON LEVEL GROUND WHEN FUELING, AND

NEVER OVERFILL THE FUEL TANK.

CAUTION

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

Operation (Continued)

If heater does not start, the thermostat setting may be too low.

Push “TEMP CONTROL UP ARROW” to higher setting to start

heater. If heater still does not start, see Troubleshooting Guide on

page 14.

NOTE: The major electrical components of this heater are pro-

tected by a circuit breaker (fuse) mounted to the power switch. If

your heater fails to start, check this rst and replace as necessary.

You should also check your power source to insure that proper

voltage and frequency are being supplied to the heater.

TO STOP HEATER

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.

1. Push “OPERATION BUTTON” (see Figure 5). This will cause

heater ame to go out. The motor will continue to run during the

cooling cycle. This allows the fan to cool the combustion cham-

ber. When the cooling cycle (approx. 2 minutes) is nished, the

motor will stop. Do not unplug heater until cooling cycle is

nished.

2. Disconnect heater from power source.

3. To temporarily stop heater, 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

DO NOT restart heater until cooling

cycle is nished.

1. Wait until cooling cycle is nished after stopping heater.

2. Repeat steps under TO START HEATER.

CAUTION

WARNING

Figure 5

Operation

Button

Temp Control Buttons

Figure 5. Control Panel

Fuse Barrel

Fuse

Fan

Combustion Chamber

Power Lamp

Fuel Tank Control Panel

Motor

Room Temperature

Operation Button

Model MH-600T-KFA

Internal Shut-

off Temp. +/-10

Degrees

176°F / 80°C

Reset Temp.

+/-10 Degrees

149°F / 65°C

Figure 4. Overview of Heater Design

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

Operation (Continued)

Drain Bolt

Drain Nut

Drain Bolt

(Bottom-Front of Fuel Tank)

Figure 6. Drain Bolt Reinstall

LONG-TERM STORAGE OF HEATER

1. Remove drain nut from rear bottom side of fuel tank by un-

screwing nut and drain. See Figure 6.

2. Using a small amount of kerosene, swirl and rinse the inside of

the tank.

NEVER MIX WATER WITH KEROSENE, as it will cause rust in-

side the tank. Pour the kerosene out, making sure that you remove

it all.

IMPORTANT: Do not store kerosene over summer for use during

next heating season. Using old fuel may damage heater.

3. Reinstall drain bolt as follows:

i. Insert bolt’s seal head fully into drain hole so that ange is

ush to tank’s bottom. See Figure 6.

ii. Insert seal cap fully into head hole so that cap ange is ush

to head ange. See Figure 6.

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

Never service heater while it is

plugged in or while hot!

NOTE: USE ORIGINAL EQUIPMENT REPLACEMENT PARTS.

Use of third-party or other alternate components will void warranty

and may cause unsafe operating conditions.

FUEL TANK

- Flush every 200 hours of operation or as needed (See page 8).

AIR FILTERS:

The Air Intake Filter should be replaced or washed with soap and

water and dried thoroughly every 500 hours of operation, or less,

depending on conditions.

The Output and Lint Filters should be replaced every 500 hours of

operation or less, depending on conditions.

NOTE: Use of diesel may require additional maintenance.

FAN BLADES

CLEAN EVERY SEASON OR AS NEEDED.

1. Remove upper shell.

2. Use Allen wrench to loosen set screw which holds fan blade to

motor shaft.

3. Slip fan blade off motor shaft.

4. Clean fan blade using soft cloth moistened with kerosene or

solvent.

5. Dry fan blade thoroughly.

6. Reinstall fan blade to motor shaft.

7. Place fan hub ush with end of motor shaft.

8. Place set screw on at end of shaft.

9. Tighten screw rmly (40-50 inch pounds/ 4.5-5.6 N-m). Rein-

stall upper shell

NOZZLE

Remove dirt in nozzle as needed.

1. Remove upper shell.

2. Remove fuel line B from burner assembly by using wrench.

3. Remove burner head from burner assembly.

4. Remove lead wire from spark plug.

5. Remove spark plug from burner head.

6. Carefully remove nozzle from burner head using socket

wrench.

7. Blow compressed air through face of nozzle (this will remove

any dirt).

8. Inspect nozzle for damage. If damaged or clogged, replace

nozzle.

9. Make sure plug is in place on burner head.

10. Reinstall nozzle into burner head and tighten rmly (175-200

inch-pounds).

11. Reinstall spark plug in burner head.

12. Attach burner head to combustion chamber.

13. Attach spark plug wire to spark plug

14. Attach fuel line to burner head and tighten rmly.

15. Replace upper shell.

16. Attach ignitor wire to spark plug.

17. Attach fuel and air line hoses to burner head.

18. Reinstall fan blade and upper shell.

SPARK PLUG

CLEAN AND REGAP EVERY 600 HOURS OF OPERATION OR

REPLACE AS NEEDED.

1. Remove upper shell.

2. Remove spark plug wire from spark plug (See Figure 8).

3. Remove spark plug from burner head using medium Phillips

screwdriver.

4. Clean and regap spark plug electrodes to 2.5 mm gap (0.1”).

5. Reinstall spark plug into burner head.

6. Attach spark plug wire to spark plug.

7. Reinstall upper shell.

Maintenance

Nozzle

Photocell

Figure 7. Nozzle Replacement

Figure 8. Spark Plug Replacement

Spark Plug

Nozzle

WARNING

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

PHOTOCELL

CLEAN PHOTOCELL ANNUALLY OR AS NEEDED.

1. Remove upper shell.

2. Remove fan (See FAN BLADES, page 9).

3. Remove photocell from its mounting bracket (see Figure 9).

4. Clean photocell lens with cotton swab.

TO REPLACE:

1. Remove side cover near Operation switch.

2. Disconnect wires from Operation switch and remove photocell.

3. Disconnect wires from circuit board and remove side cover.

4. Install new photocell and attach wires to circuit board.

5. Replace switch wires to operation switch and side cover.

6. Replace fan and upper shell.

FUEL FILTER

CLEAN TWICE PER HEATING SEASON OR AS NEEDED.

1. Open rear shell.

2. Remove lter cover by unscrewing four screws (see Figure 10).

3. Remove fuel lter from fuel cover.

4. Wash fuel lter in clean kerosene.

5. Replace fuel lter and fuel cover.

Fuel lter A on fuel cap

1. Remove fuel cap (See Figure 11).

2. Take out fuel lter with clean kerosene.

3. Wash fuel lter with clean kerosene.

4. Replace fuel lter on fuel tank.

5. Replace fuel cap on fuel tank.

PUMP PRESSURE ADJUSTMENT

1. Remove rear shell.

2. Remove fuel line A from fuel pump by using wrench.

3. Place pressure gauge at outlet of fuel pump.

4. Adjust pump pressure by turning pressure adjustment screw

(see Figure 12 on page 11).

i. Turn screw clockwise to increase pressure.

ii. Turn screw counterclockwise to decrease pressure.

5. Set pump pressure to 128 PSI by turning screwdriver

(directions continued on following page).

Pump pressure gauge is not supplied.

Figure 9. Photocell

Photocell

Maintenance (Continued)

Burner Assembly

Fuel Filter

Fuel Cover

Figure 10. Removing Fuel Filter

Fuel Cap

Fuel

Gasket

Fuel Filter A

Figure 11. Fuel Filter A

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

Maintenance (Continued)

8. Stop heater (See OPERATION, page 7).

9. If accessory pressure gauge is being used, remove pressure

gauge.

10. Replace fuel line, and plug in end of lter cover.

NOTE: Use only original equipment replacement parts. Use of al-

ternate or third party components will void any warranty and may

cause unsafe operating conditions.

NOTE: If heater does not ignite when heater is turned on, please

turn AIR VENT SCREW counter clockwise to release air, then turn

OPERATION SWITCH back on.

Wiring Diagram

PUMP PRESSURE ADJUSTMENT (Continued)

Pump

Adjusting

Screw

Figure 12. Pump Pressure Adjustment

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

Exploded View

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

Parts List

# Description MH-400T-KFA

1PCB Assembly 70-027-0800

2Fuel Cap Assembly 70-006-0200

3Pneumatic Wheel 70-041-0110

4 Photocell 70-016-0150

5 Nozzle 70-015-0750

6Fan Motor Assembly 70-021-0800

NEVER LEAVE HEATER UNATTENDED WHILE BURNING

OR WHILE CONNECTED TO A POWER SOURCE

Troubleshooting Guide

Problem Possible Cause Solution

Heater Ignites, but main PCB shuts

off after a short period of time.

Lamp ickers and LED display

shows “E1”.

1. Incorrect pump pressure.

2. Dirty fuel lter.

3. Nozzle is dirty.

4. Photocell lens is dirty.

5. Photocell not installed properly..

6. Improper electrical connection

between main PCB and photocell.

7. Photocell is defective

1. Adjust pump pressure (see page 10).

2. Clean / replace fuel lter (see page 10).

3. Clean / replace Nozzle (see page 9).

4. Clean / replace photocell (see page 10).

5. Adjust photocell position (see page 10).

6. Check wiring connections

(see wiring diagram on page 11).

7. Replace photocell (see page 9).

Heater will not operate or motor

runs for a short time.

Lamp ickers and LED display

shows “E1”.

1. No kerosene in the fuel tank.

2. Incorrect pump pressure.

3. Corroded spark plug or incorrect

plug gap.

4. Dirty fuel lter.

5. Dirty nozzle.

6. Moisture in fuel tank.

7. Improper electrical connection

between transformer and circuit

board.

8. Ignitor wire not connected to spark

plug.

9. Defective ignitor.

1. Fill tank with fresh kerosene.

2. Adjust pump pressure (see page 10).

3. Clean / replace spark plug (see

page 9).

4. Clean / replace fuel lter (see page 10).

5. Clean / replace nozzle (see page 9).

6. Rinse fuel tank with clean, fresh

kerosene (see page 8).

7. Inspect all electrical connections

(see wiring diagram on page 11).

8. Re-attach ignitor wire to spark plug

(see page 9).

9. Replace ignitor.

Fan does not operate when heater

is plugged in and power switch is

in the “ON” position. The lamp is

ickering or and LED display shows

“E1” or “E2”.

1. Thermostat is set too low.

2. Broken electrical connection

between main PCB and motor.

1. Rotate thermostat to a higher

setting

2. Inspect all electrical connections

(see wiring diagram on page 11).

Lamp is ickering and LED display

shows “E3”.

1. Thermostat switch has failed.

2. Short circuit

1. Replace thermostat switch (see

wiring diagram on page 11).

2. Inspect all electrical connections

(see wiring diagram on page 11).

Lamp is ickering and LED display

shows “E4”.

1. Sensor disconnected 1. Check limit control thermostat and/

or check sensor connection

Lamp is ickering and LED display

shows “E5”.

1. Temperature limit safety device is

overheated

1. Wait until unit cools down.

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