TC100R
PROPANE CONSTRUCTION HEATER
TROUBLESHOOTING
You may have further questions about this heater. If so, contact DESA International’s Tech- nical Service Department at
WARNING: Never attempt to service heater while it is connected to propane supply, operating, or hot. Severe burns can occur.
SYMPTOM | POSSIBLE CAUSE | REMEDY |
Pilot fails to light. | 1. | Propane supply valve closed on propane |
|
| tank(s). |
| 2. | |
| 3. | Air in gas line. |
| 4. | Blockage in pilot orifice. |
| 5. | Piezo ignition system not sparking. |
1.Open propane supply valve slowly.
2.Close propane supply valve on propane tank and reopen slowly.
3.Allow several minutes to purge air with automatic control valve button depressed.
4.Replace pilot orifice.
5.Adjust ignitor electrode gap to .120". Check wire lead for damage. Replace piezo ignitor and/or ignitor electrode as necessary.
Pilot lights but goes | 1. | Not enough | 1. | Relight, hold automatic control valve button in |
out when automatic control |
|
|
| 45 seconds. |
valve button is released. |
|
| 2. | Check propane tank(s) for proper gas supply. |
| 2. | Low gas pressure. | ||
| 3. | Thermocouple loose or needs to be replaced. | 3. | Tighten connection or replace thermocouple. |
| 4. | Automatic control valve needs to be replaced. | 4. | Replace automatic control valve. |
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Burn rate is low; emitter not 1. Main burner valve not fully open. glowing.
1.Fully open main burner valve by turning the valve handle towards ON position until 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. |
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Soot forming inside heater, 1. | Main burner valve not fully open. | 1. | Adjust main burner valve slowly towards ON |
flame 100% yellow. |
|
| position. |
2. | Low fuel supply. | 2. | Consult propane gas supplier. |
6 | 104129 |
