Troubleshooting

WARNING: Never attempt to service heater while it is connected to propane/LP supply, operating, or hot. Severe burns can occur.

SYMPTOM

POSSIBLE CAUSE

REMEDY

 

 

 

 

 

Burner fails to light

1.

Propane/LP supply valve

1.

Open propane/LP supply

 

 

closed on propane/LP cyl-

 

valve slowly

 

 

inder

 

 

 

2.

Blockage in burner/orifice

2.

Clean burner/replace orifice

 

 

elbow/hose and regulator

 

elbow/hose and regulator

 

 

assembly

 

assembly

 

3.

Battery not installed, battery

3.

Install new alkaline battery

 

 

power low or battery not

 

in electronic ignitor. Verify

 

 

installed correctly

 

battery is installed correctly.

 

 

 

 

See page 12

Burner lights but goes out when automatic control valve button is released

1.Not enough warm-up time

2.Low gas pressure

3.Thermocouple loose or needs to be replaced

4.Automatic control valve needs to be replaced

5.Thermocouple gap is too great

1.Relight, hold automatic control valve button in 30 seconds

2.Check propane/LP cylinder for proper gas supply

3.Tighten connection or re- place thermocouple

4.Replace automatic control valve assembly

5.Tip of thermocouple should just touch the emitter mate- rial. Loosen bracket screws to move thermocouple clos- er to burner. Be careful not to allow ignitor to touch. Maintain 0.20"

Maximum burn rate is low

1.

Low gas pressure

1.

Check gas supply; check

 

 

 

 

regulator output

 

2.

Low fuel supply

2.

Consult propane/LP gas

 

 

 

 

supplier

 

3.

Restriction in burner/orifice

3.

Clean burner/replace orifice

 

 

elbow/hose and regulator

 

elbow/hose and regulator

 

 

assembly

 

assembly

14

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118994-01G

Page 14
Image 14
Desa Td100, Td104, Td102 owner manual Troubleshooting, Symptom Possible Cause Remedy, Elbow/hose and regulator Assembly, See

TD100, TD102, TD104, TD110, Td100, Td102, Td104 specifications

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