Desa H Manuel d'utilisateur télécharger pdf (Page 21)

108795-01F

For more information, visit www.desatech.com

TROUBLESHOOTING

The two most common causes of a malfunctioning gas appliance are:

1. Loose wiring connections

2. Construction debris clogging the pilot and/or gas control valve

filter

OBSERVED PROBLEM

Pilot will not light

Pilot will not stay lit

No gas to burner, although wall switch and

valve are set to the ON position

Frequent pilot outage

POSSIBLE CAUSE

1. No gas supply, or shutoff valve is OFF

2. Air in gas line

3. Construction debris clogging pilot orifice

4. Low gas pressure

5. Control valve knob is not on the PILOT

position

6. Kinked pilot line

7. Bad valve

8. Vent damper not fully open

1. Loose wiring on thermopile to regula-

tor valve. No millivolt current is being

sent back to regulator

2. If valve knob and wall switch are in the

ON position, probable defective regula-

tor valve

3. Vent damper not fully open

1. Wall switch wires defective or too long

2. Thermopile not generating sufficient

voltage

1. Pilot flame may be too low, causing

safety pilot to “drop out”

2. Improper venting or excessive blockage

REMEDY

1. Check to see if you have gas supply

2. Hold regulator control valve in the PILOT

position for 2 to 3 minutes to purge air. If

you smell gas stop and wait for a few min-

utes before trying to light the fireplace

3. Remove debris and dirt, inspect and

clean any other possible obstructions

4. Contact your gas supplier

5. Refer to section on pilot lighting

6. Have a qualified technician replace pi-

lot line

7. Replace regulator valve (see Accesso-

ries, page 27)

8. Open vent damper until fully locked in

OPEN position

1. Check wiring connections. Refer to wir-

ing diagram shown in Wall Switch In-

stallation, page 11

2. Have a qualified technician replace valve

3. Open vent damper until fully locked in

OPEN position

1. Check electrical connections

2. See Pilot will not stay lit, above

1. Clean and adjust pilot flame for maximum

flame impingement on thermopile

2. Have the vent system inspected, includ-

ing the termination cap. Remove any

restriction or obstruction

Note:

For additional help, visit DESA International’s Techni-

cal Service web site at www.desatech.com.

Note:

Before troubleshooting the system, make sure the gas shutoff

valve is ON.

TROUBLESHOOTING

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Desa H Manuel d'utilisateur Page 21

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