TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

Yellow flame during burner com-

1.

Not enough air

1.

Check burner for dirt and de-

bustion

 

 

 

bris. If found, clean burner

 

 

 

 

(see Cleaning and Mainte-

 

 

 

 

nance, page 19)

 

2.

Gas regulator defective

2.

Replace gas regulator

 

3.

Clogged or dirty burner

3.

Clean burner (see Cleaning

 

 

 

 

and Maintenance, page 19)

 

 

 

 

 

Slight smoke or odor during ini-

1.

Residues from manufactur-

1.

Problem will stop after a few

tial operation

 

ing processes

 

hours of operation

Heater produces a whistling noise when burner is lit

1.Turning control knob to 5 po- sition when burner is cold

2.Air in gas line

3.Air passageways on heater blocked

4.Dirty or partially clogged burner orifice

1.Turn control knob to 1 posi- tion and let warm up for a minute

2.Operate burner until air is re- moved from line. Have gas line checked by local natural or propane/LP gas company

3.Observe minimum installation clearances (see Figure 4, page 8)

4.Clean burner (see Cleaning and Maintenance, page 19) or replace burner orifice

White powder residue forming within burner box or on adjacent walls or furniture

1.When heated, vapors from furniture polish, wax, carpet cleaners, etc. may turn into white powder residue

1.Turn heater off when using furniture polish, wax, carpet cleaners, or similar products

22

www.desatech.com

107884-01H

Page 22
Image 22
Desa GWP30T, GWP20T, GWN20T, WMN20, GN30T, GP30T, GWN30T installation manual See Cleaning and Mainte

GP30, GWN20T, GWN30T, GWN20, GWP20 specifications

Desa GWP20, GWP30T, GP30T, GN30T, and GP30 are advanced water heater models that stand out in the market for their efficiency, innovative technology, and user-friendly features. Each model is designed to cater to different consumer needs, offering reliable hot water solutions for residential and commercial applications.

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