TROUBLE SHOOTING CHART

SYMPTOM

 

POSSIBLE CAUSES

 

CORRECTIVE ACTION

 

 

 

 

Flame too large

1.

Defective operator section of valve.

 

1.

Replace valve.

 

 

2. Burner orifice too large.

 

2.

Check with local gas company for proper

 

 

 

 

 

 

orifice - size and replace.

 

 

3.

If installed above 2,000 ft.

 

3. See burner orifice section, Page 11.

 

 

 

 

 

 

 

Yellow burner flame

1. Clogged burner ports.

 

1.

Remove burners and check for obstruc-

 

 

 

 

 

 

tions in throats, ports, and orifices. Clean -

 

 

 

 

 

 

but do not enlarge ports or orifices.

 

 

2.

Obstruction around vent cap.

 

2.

Make sure area around vent cap is clear, be

 

 

 

 

 

 

sure vent system is sealed.

 

Gas odor

1. Gas leak.

 

1. See Page 1.

 

Delayed Ignition

1.

Low gas pressure.

 

1. Check gas supply pressure.

 

 

2.

Igniter not peroperly located.

 

2. Check ignitor location and correct if

 

 

 

 

 

 

necessary.

 

Failure to ignite

1.

Main gas off.

 

1. Open all manual gas valves.

 

 

2.

Temperature dial or thermostat not set high

 

2.

Set temperature dial or thermostat to

 

 

 

enough to call for heat.

 

 

higher temperature.

 

 

3. Clogged burner orifice.

 

3. Clean burner orifices (do not enlarge).

 

 

4. Incorrect wiring.

 

4. Check wiring diagram.

 

 

5. Defective valve.

 

5. Replace valve.

 

 

6. No power to unit.

 

6.

Plug in power supply cord. Check 115 V.

 

 

 

 

 

 

wall outlet.

 

Burner won’t

1. Defective or damaged thermostat wire,

 

1. Can be checked by removing wire from con-

 

turn off

 

or thermostat.

 

 

trol board terminal. If burner goes off, replace

 

 

 

 

 

 

thermostat.

 

 

2.

Thermostat sensor location on back of heater.

 

2.Thermostat sensor attached to back of heater

 

 

 

 

 

 

to re-locate out of drafts, hot, or cold spots.

 

 

3. Defective or sticking valve.

3. Replace valve.

 

 

4. Excessive gas pressure.

 

4. Contact utility supplying gas.

 

 

5. Defective or damaged sensor.

 

5. Replace thermostat.

 

Incorrect gas

1.

Gas input not checked.

1.

Re-check gas input.

 

input

2. Clogged orifices.

 

2. Clean orifices with a smooth wood toothpick,

 

 

 

 

 

 

do not enlarge.

 

Not enough heat

1. Furnace undersized.

1.

This is especially true when a dwelling or

 

 

 

 

 

 

room is enlarged. Have the heat loss

 

 

 

 

 

 

calculated and compare to furnace output.

 

 

 

 

 

 

Your gas company can supply you with this

 

 

 

 

 

 

information. If furnace is undersized,

 

 

 

 

 

 

replace with correct size unit.

 

 

2.

Temperature dial set too low.

2.

Raise temperature setting.

 

 

3.

Incorrect supply pressure.

3.

Check supply pressure.

 

Too much heat

1.

Temperature dial set too high.

1.

Lower temperature setting.

 

 

2.

Combination control valve stuck open.

 

2. Replace combination control valve.

 

Main burner

1. Defective flame sensor.

 

1. Check voltage and replace if low.

 

goes out

2.

Input too high.

2.

Check input rate.

 

during normal

3.

Cover around pilot lighter hole not air

 

3. Tighten wing nuts securing cover and sight

 

operation

 

tight.

 

 

glass. Check and replace gasket if needed.

 

 

4.

Vent tubes not properly installed or

4.

Follow instructions. Check both exhaust and

 

 

 

sealed.

 

 

air intake tubes, and vent cap. Be sure all

 

 

 

 

 

 

gaskets are in place and properly sealed. Use

 

 

 

 

 

 

only tubes and vent cap supplied. Do not

 

 

 

 

 

 

alter vent tubes or cap.

 

 

5.

Limit switch opens.

 

5. Clean air filter.

 

 

6.

Exhaust or Air Intake tubes blocked.

6.

Remove obstruction. Check for snow

 

 

 

 

 

 

accumulation around vent cap.

 

 

 

 

 

 

 

 

Page 17

Page 16 Page 18
Page 17
Image 17
Louisville Tin and Stove HEDV404, HEDV403 warranty
Page 16 Page 18

HEDV403, HEDV404 specifications

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