TROUBLESHOOTING

Continued

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

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 whistling

1.

Turning control knob to HI po-

1. Turn control knob to LO position

noise when burners are lit

 

sition when burners are cold

 

and let warm up for 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 installation

 

 

blocked

 

clearances (see page 9)

 

4.

Dirty or partially clogged

4.

Clean burners (see Cleaning

 

 

burner orifice(s)

 

and Maintenance, page 21)

 

 

 

 

or replace burner orifice

 

 

 

 

 

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

 

 

 

 

 

 

 

Heater produces a clicking/tick-

1.

Metal expanding while heating

1.

This is common with most

ing noise just after burners are

 

or contracting while cooling

 

heaters. If noise is excessive,

lit or shut off

 

 

 

contact qualified service

 

 

 

 

person

113896-01A

www.desatech.com

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Image 25
Desa CF26PTA installation manual On windows Tilation air