Desa VF-24N-MHD, VF-24P-MHD, VF-18N-MHD, VF-18P-MHD, VF-18P-MHD Bad module Replace module

Page 23

troubleshooting

Continued

WARNING: If you smell gas

Shut off gas supply.

Do not try to light any appliance.

Do not touch any electrical switch; do not use any phone in your building.

Immediately call your gas supplier from a neighbor’s phone. Fol- low the gas supplier’s instructions.

If you cannot reach your gas supplier, call the fire department.

IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc., create fumes. These fumes may mix with combustion air and create odors. These odors will disappear over time.

OBSERVED PROBLEM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

Remote does not function

1. Battery is not installed. Bat-

1.

Replace 9-volt batteries in

 

2.

tery power is low

2.

receiver and remote control

 

Bad module

Replace module

 

Heater produces a clicking/tick-

1. Metal expanding while heating

1.

This is common with most heat-

ing noise just after burner is lit

 

or contracting while cooling

 

ers. If noise is excessive, contact

or shut off

 

 

 

qualified service person

 

 

 

 

 

Heater produces unwanted

1. Heater burning vapors from

1.

Open window to ventilate

odors

 

paint, hair spray, glues, clean-

 

room. Stop using odor caus-

 

 

ers, chemicals, new carpet,

 

ing products while heater is

 

 

etc. (See IMPORTANT state-

 

running

 

2.

ment above)

2.

Refill supply tank (propane/LP

 

Low fuel supply (propane/LP

 

3.

only)

3.

only)

 

Gas leak. See Warning

Locate and correct all leaks

 

 

statement at top of page

 

(see Checking Gas Connec-

 

 

 

 

tions, page 13)

 

Heater shuts off in use (ODS

1. Not enough fresh air is avail-

1.

Open window and/or door for

operates)

2.

able

2.

ventilation

 

Low line pressure

Contact local natural or pro-

 

3.

ODS/pilot is partially

3.

pane/LP gas company

 

Clean ODS/pilot (see Cleaning

 

4.

clogged

4.

and Maintenance, page 19)

 

Thermostat on remote is

Adjust temperature

 

 

satisfied

 

 

 

Gas odor even when control knob

1. Gas leak. See Warning

1.

Locate and correct all leaks

is in OFF position

 

statement at top of page

 

(see Checking Gas Connec-

 

2.

Control valve or gas control

2.

tions, page 13)

 

Replace control valve or gas

 

 

defective

 

control

 

 

 

 

 

Gas odor during combustion

1. Foreign matter between con-

1.

Take apart gas tubing and

 

2.

trol valve and burner

2.

remove foreign matter

 

Gas leak. See Warning

Locate and correct all leaks

 

 

statement at top of page

 

(see Checking Gas Connec-

 

 

 

 

tions, page 13)

116986-01B

www.desatech.com

23

Image 23
Contents Models VF-18N-MHD, VF-18P-MHD, VF-24N-MHD VF-24P-MHD What to do if YOU Smell GASTable of Contents Safety Information Product Identification Product IdentificationAir For Combustion Ventilation Product FeaturesLocal Codes UnpackingDetermining if You Have a Confined or Unconfined Space Determining fresh-air flow for heater locationConfined and Unconfined Space Ventilation Air From Outdoors Ventilation AIRVentilation Air From Inside Building Check GAS Type InstallationInstallation and clearances for vent-free operation Installation Floor Clearances Installing Heater AssemblyDetermining Minimum Mantel Clearance When using a Hood Mantel ClearancesInstallation Items Needed Connecting to gas supplyPropane/LP Gas Checking gas connectionsNatural Gas Test Pressures Equal To or Less Than Psig 3.5 kPa Pressure Testing Heater Gas ConnectionsAdding Embers, Lava rock and Decorative logs Operating Heater For your safety Read before lightingFunctions Remote ControlManual Lighting ProcedureLighting with Piezo Ignitor Inspecting BurnersTo turn gas off To appliance Pilot Flame PatternBurner Injector Holder Air Inlet Hole Cleaning MaintenanceBurner Flame Pattern Injector Holder on Front Burner Tube Observed Problem Possible Cause Remedy TroubleshootingSee Cleaning and Mainte Gas leak. See Warning Bad module Replace moduleIdentifying error signals from receiver Wiring DiagramAccessories Replacement PartsService Hints Technical ServiceModels VF-18N-MHD, VF-18P-MHD, VF-24N-MHD and VF-24P-MHD Illustrated Parts BreakdownParts List Limited Warranty VENT-FREE GAS LOG Heaters Warranty InformationKeep this Warranty