Monessen Hearth EYF18, EYF24 manual Troubleshooting, Problem, Possible Cause, Solution

Models: EYF24 EYF18

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TROUBLESHOOTING

 

TROUBLESHOOTING

 

 

 

EYF Series Unvented Gas Log Set

 

 

 

 

 

 

 

Problem

 

Possible Cause

 

Solution

 

 

 

 

 

 

 

ODS/pilot lights, but flame

1.

Control knob not fully pressed in.

1.

Press in control knob fully.

 

goes out when control

2.

Control knob not pressed in long

2.

After ODS/pilot lights, keep control knob

 

knob is released.

 

enough.

 

pressed in for 30 seconds.

 

 

3.

Manual shutoff valve not fully open.

3.

Fully open manual shutoff valve.

 

 

 

 

 

 

 

 

4.

Thermocouple connection loose at

4.

Hand tighten thermocouple connection

 

 

 

control valve.

 

until snug, then tighten 1/4 turn more.

 

 

5.

Pilot flame not touching thermo-

5.

Contact local gas company.

 

 

 

couple, which allows thermocouple

 

 

 

 

 

to cool, causing pilot flame to go out.

 

 

 

 

 

This problem could be caused by

 

 

 

 

 

either low gas pressure, or a dirty or

 

 

 

 

 

partially clogged ODS/pilot.

 

 

 

 

 

 

 

 

 

 

6.

Thermocouple damaged.

6.

Replace thermocouple.

 

 

7.

Control valve damaged.

7.

Replace control valve.

 

 

 

 

 

 

 

Burner does not light after

1.

Burner orifice is clogged.

1.

Clean burner or replace burner orifice.

 

ODS/pilot is lit.

2.

Burner orifice diameter is too small.

2.

Replace burner orifice.

 

 

 

 

 

 

 

 

3.

Inlet gas pressure is too low.

3.

Contact qualified service person.

 

Burner backfires during

1.

Manifold Pressure is too low.

1.

Contact local gas company.

 

combustion.

2.

Burner orifice is clogged.

2.

Clean burner or replace burner orifice.

 

Slight smoke or odor dur-

1.

Burner orifice is clogged or dam-

1.

Clean burner or replace burner orifice.

 

 

aged.

 

 

 

ing initial operation.

 

 

 

 

2.

Burner is damaged.

2.

Replace burner.

 

 

 

 

3.

Gas regulator is defective.

3.

Replace gas regulator.

 

 

 

 

 

 

 

Logs appear to smoke

1.

Vapors from paint or curing process

1.

Problem will stop after a few hours

 

 

of logs.

 

of operation. Run the heater with the

 

after initial operation.

 

 

 

 

 

 

damper open if you have one, or open a

 

 

 

 

 

 

 

 

 

 

window for the first few hours.

 

 

 

 

2.

Log heater is intended to be smoke-

 

 

 

 

 

less. Turn OFF heater and call qualified

 

 

 

 

 

service person.

 

Heater produces a whis-

1. Turning control knob to HIGH posi-

1.

Turn control knob to LOW position and

 

tling noise when burner is

 

tion when burner is cold.

 

let warm up for a minute.

 

lit.

2.

Air in gas line.

2.

Operate burner until air is removed from

 

 

 

 

 

line. Have gas line checked by local gas

 

 

 

 

 

company.

 

 

 

 

 

 

 

 

3.

Dirty or partially clogged burner

3.

Clean burner or replace burner orifice.

 

 

 

orifices.

 

 

 

No gas to pilot.

1.

LP regulator shut down due to inlet

1.

Verify LP tank regulator is installed and

 

 

pressure too high.

 

set at 11” to 13” w.c.

 

 

 

 

 

 

 

 

2.

Replace regulator on heater.

 

 

 

 

 

 

WARNING

If the gas quality is bad, your pilot may not stay lit, the burners may produce soot and the heater may backfire when lit. If the gas quality or pressure is low, contact your local gas supplier immediately.

65D1009

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Monessen Hearth EYF18, EYF24 manual Troubleshooting, Problem, Possible Cause, Solution, EYF Series Unvented Gas Log Set