Desa CDR3924NT installation manual Cold Minute Air in gas line Operate burners until air is

Models: CDR3924NT

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TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

 

 

Slightsmokeorodorduringinitial

1.

Residues from manufacturing

1.

Problem will stop after a few

operation

 

processes and logs curing

 

hours of operation

 

 

 

 

 

 

 

Heaterproducesawhistlingnoise

1.

Turning control knob to HI

1.

Turn control knob to LO

when burners are lit

 

position when burners are

 

position and let warm up for

 

 

 

cold

 

a minute

 

 

2.

Air in gas line

2.

Operate burners until air is

 

 

 

 

 

removed from line. Have gas

 

 

 

 

 

line checked by local natural

 

 

 

 

 

or propane/LP gas company

 

 

3.

Air passageways on heater

3.

Observe minimum installa-

 

 

 

blocked

 

tion clearances (see pages 8

 

 

4.

Dirty or partially clogged

 

through 10)

 

 

4.

Clean burners (see Cleaning

 

 

 

burner orifice(s)

 

and Maintenance, page 19)

 

 

 

 

 

 

White powder residue forming

1.

When heated, vapors from

1.

Turn heater off when using

within burner box or on adjacent

 

furniture polish, wax, carpet

 

furniture polish, wax, carpet

walls or furniture

 

cleaners, etc. may turn into

 

cleaners, or similar products

 

 

 

white powder residue

 

 

 

 

 

 

 

 

 

Moisture/condensation noticed

1.

Not enough combustion/ven-

1.

Refer to Air for Combustion

on windows

 

tilation air

 

and Ventilation requirements

 

 

 

 

 

(page 5)

 

 

 

 

 

 

Heater produces a clicking/tick-

1.

Metal expanding while heat-

1.

This is common with most

ing noise just after burners are lit

 

ing or contracting while

 

heaters. If noise is excessive,

or shut off

 

cooling

 

contact qualified service

 

 

 

 

 

person

22

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Desa CDR3924NT installation manual Cold Minute Air in gas line Operate burners until air is