OWNER’S MANUAL
TROUBLESHOOTING
Note: For additional help, call DESA International’s Technical Service Department at
WARNING: Never attempt to service heater while it is connected to gas supply, operating, or hot. Severe burns can occur.
SYMPTOM | POSSIBLE CAUSE | REMEDY | ||
Burner fails to light | 1. | (Propane model only) Propane supply | 1. | (Propane model only) Open propane |
|
| valve closed on propane tank(s) |
| supply valve slowly |
| 2. | Excess flow check valve closed | 2. | Close propane supply valve on propane |
|
|
|
| tank and reopen slowly |
| 3. | Blockage in burner orifice | 3. | Replace burner orifice |
| 4. | Piezo ignition system not sparking | 4. | Check to assure ignitor electrode gap is |
|
|
|
| .15" Check wire lead for damage. Re- |
|
|
|
| place piezo ignitor and/or ignitor elec- |
|
|
|
| trode as necessary |
|
|
|
|
|
Burner lights but goes out when automatic | 1. | Not enough warm up time | 1. | Relight, hold automatic control valve |
control valve button is released |
|
|
| button in 45 seconds |
| 2. | Low gas pressure | 2. | (Propane model only) Check propane |
|
|
|
| tank(s) for proper gas supply |
|
|
|
| (Natural gas model only) Check natural |
|
|
|
| gas supply |
| 3. | Thermocouple loose or needs to be | 3. | Tighten connection or replace thermo- |
|
| replaced |
| couple |
| 4. | Automatic control valve needs to be | 4. | Replace automatic control valve |
|
| replaced |
|
|
|
|
|
|
|
Burn rate is low, emitter not glowing | 1. | Control valve is on LOW | 1. | Push and turn valve counter clockwise |
|
|
|
| to HIGH |
| 2. | Blockage in burner orifice | 2. | Replace burner orifice |
| 3. | Low gas pressure | 3. Check gas supply; check regulator | |
|
|
|
| output |
| 4. | Low fuel supply | 4. | Consult gas supplier |
|
|
|
|
|
Flames are extremely high coming out of emitter
1.(Natural gas model only) Unit has been connected to propane gas instead of natural gas
1.(Natural gas model only) Check gas source and replace with natural gas
www.desatech.com
106179 | 7 | For more information, visit www.desatech.com |
