OWNER’S MANUAL

TROUBLESHOOTING

Note: For additional help, visit DESA International’s technical service web site at www.desatech.com.

Note: Before troubleshooting the system, make sure the gas shutoff valve is ON.

WARNING: Turn off fireplace and let cool before servicing. Only a qualified service person should service and repair fireplace.

Note: All troubleshooting items are listed in order of operation.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Can not light main burner

1.

No gas supply, or shutoff valve is OFF

1.

Check to see if you have gas supply

 

2.

Air in gas line

2.

Repeat lighting procedure several times

 

 

 

 

to purge all air out of lines. If after re-

 

 

 

 

peated attempts appliance does not light

 

 

 

 

call for qualified service and repair

 

3.

Low gas pressure

3.

Contact your gas supplier

 

4.

Bad valve

4.

Replace control valve (see Replacement

 

 

 

 

Parts, page 27)

 

5.

Bad electrode wire or loose connection

5.

Tighten wires or replace electrode

 

6.

No power to unit or the ignition module

6.

Check that the main power is on and that

 

 

or power transformer is bad

 

all wire connections are made correctly

 

 

 

 

to the ignition module (see Wiring Dia-

 

 

 

 

gram, page 22). Check for 24 VAC at

 

 

 

 

the secondary side of the transformer. If

 

 

 

 

24 VAC is present and the module does

 

 

 

 

not operate, have the module replaced

 

 

 

 

otherwise have the transformer replaced.

 

 

 

 

 

No gas to burner, although wall switch and

1.

Wall switch wires defective

1.

Check electrical connections

valve are set to the ON position

 

 

 

 

 

 

 

 

 

Frequent flame outage

1. The electrode may be in the wrong po-

 

sition causing electrode not to sense

 

burner flame

1.Clean and adjust electrode to burner flame for maximum sensitivity on the electrode See page 19 for electrode as- sembly adjustments.

Burner goes off after a short time

1. Venting recirculation problem

1. Have a qualified technician check vent-

 

 

ing system for leaks or obstructions.

www.desatech.com

Continued

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Desa EVDDVF36STN, EVDDVF36PN installation manual Troubleshooting

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