TROUBLESHOOTING

Note: For additional help, visit DESA International’s technical service website at www.desatech.com.

TROUBLESHOOTING

7

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

SYMPTOM

POSSIBLE CAUSE

REMEDY

Burner fails to light

1.

Propane supply valve closed on propane

1.

Open propane supply valve slowly

 

 

tank(s)

 

 

 

2.

Excess-flow check valve closed

2.

Close propane supply valve on propane tank

 

 

 

 

and reopen slowly

 

3.

Blockage in burner nozzle

3.

Replace burner nozzle

 

4.

Piezo ignition system not sparking

4.

Check to assure ignitor electrode gap is

 

 

 

 

.130". Check wire lead for damage. Replace

 

 

 

 

piezo ignitor and/or ignitor electrode as nec-

 

 

 

 

essary

 

 

 

 

 

Burner lights but goes out when auto-

1.

Not enough warm-up time

1.

Relight, hold automatic control valve but-

matic control valve button is released

 

 

 

ton in 45 seconds

 

2.

Low gas pressure

2. Check propane tank(s) for proper gas supply

 

3.

Thermocouple loose or needs to be replaced

3.

Tighten connection or replace thermocouple

 

4.

Automatic control valve needs to be re-

4.

Replace automatic control valve

 

 

placed

 

 

 

 

 

 

 

 

1.

Main burner valve not fully open

1.

Fully open main burner valve by turning

 

 

 

 

control knob towards HIGH position until

Burn rate is low

 

 

 

it stops

 

2.

Plugged gas orifices

2.

Replace gas orifice

 

3.

Low gas pressure

3.

Check gas supply; check regulator output

 

4.

Low fuel supply

4.

Consult propane gas supplier

For more information, visit www.desatech.com

103386-01G

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Desa 200 owner manual Troubleshooting, Symptom Possible Cause Remedy

200 specifications

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