Desa Td100, Td104, Td102 owner manual Troubleshooting, Symptom, Possible Cause, Remedy

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

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