TROUBLE-
SHOOTING
You may have further ques- tions about this heater. If so, contact DESA International’s Technical 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 | 1. Propane supply valve closed | 1. | Open propane supply valve | |
to light. |
| on propane tank(s). |
| slowly. |
| 2. | 2. | Close propane supply valve on | |
|
| closed. |
| propane tank and reopen |
| 3. | Air in gas line. |
| slowly. |
|
|
| 3. | Allow several minutes to purge |
|
|
|
| air with automatic control |
| 4. | Blockage in pilot orifice. |
| valve button depressed. |
| 5. | Piezo ignition system not | 4. | Replace pilot orifice. |
|
| sparking. | 5. | Adjust ignitor electrode gap to |
|
|
|
| .120". Check wire lead for |
|
|
|
| damage. Replace piezo ignitor |
|
|
|
| and/or ignitor electrode as |
Pilot lights | 1. Not enough |
| necessary. | |
|
| |||
but goes |
|
| 1. | Relight, hold automatic control |
out when | 2. Low gas pressure. |
| valve button in 45 seconds. | |
automatic |
|
| 2. | Check propane tank(s) for |
control valve | 3. Thermocouple loose or |
| proper gas supply. | |
button |
| needs to be replaced. | 3. | Tighten connection or replace |
is released. | 4. | Automatic control valve |
| thermocouple. |
|
| needs to be replaced. | 4. | Replace automatic control |
Burn rate | 1. Main burner valve not fully |
| valve. | |
|
| |||
is low. |
| open. | 1. | Fully open main burner valve |
|
|
|
| by turning the valve handle |
| 2. | Plugged gas orifices. |
| towards ON position until it |
| 3. | Low gas pressure. |
| stops. |
|
|
| 2. | Replace gas orifice. |
| 4. | Low fuel supply. | 3. | Check gas supply; check |
|
|
|
| regulator output. |
|
|
| 4. | Consult propane gas supplier. |
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