TROUBLESHOOTING GUIDE FOR UNVENTED GAS PRODUCTS
OBSERVED PROBLEM | POSSIBLE CAUSE | REMEDY | |
1. | When igniter button is | A. Igniter electrode positioned wrong. | Replace igniter. |
| pressed, there is no spark |
|
|
|
| Replace igniter. | |
| at ODS/pilot. | B. Igniter electrode broken. | |
|
|
|
|
|
| C. Igniter electrode not connected to igniter cable. | Reconnect igniter cable. |
|
|
|
|
|
| D. Igniter cable pinched or wet. | Free igniter cable if pinched by any metal or tubing. Keep igniter cable dry. |
|
|
|
|
|
| E. Piezo igniter nut is loose. | Tighten nut. |
|
|
|
|
|
| F. Broken igniter cable. | Replace igniter cable. |
|
|
|
|
|
| G. Bad piezo igniter. | Replace piezo igniter. |
|
|
|
|
2. | Heater produces unwanted | A. Heater burning vapors from paint, hair spray, glues, etc. | Ventilate room. Stop using |
| odors. |
|
|
| B. Gas leak. See Warning statement on the front page. | Locate and correct all leaks. | |
|
| ||
|
|
|
|
3. | Heater shuts off in use | A. Not enough fresh air is available. | Open window and/or door for ventilation. |
| (ODS operates). |
|
|
| B. Low line pressure. | Contact local gas company. | |
|
| ||
|
|
|
|
|
| C. ODS/pilot is partially clogged. | Clean ODS/pilot. |
|
|
|
|
4. | Gas odor even when control | A. Gas leak. See Warning statement on the front page. | Locate and correct all leaks (see Checking Gas Connections, page 7). |
| knob is in “OFF” position. |
|
|
| B. Control valve defective. | Replace control valve. | |
|
| ||
|
|
|
|
5. | When igniter button is | A. Gas supply turned off or manual | Turn on gas supply or open manual |
|
| ||
|
| ||
| pressed, there is spark at | B. Control knob not in “PILOT” position. | Turn control knob to pilot position. |
| ODS/pilot, but no ignition. |
|
|
| C. Control knob not pressed in while in “PILOT” position. | Press in control knob while in pilot position. | |
|
| ||
|
|
|
|
|
| D. Air in gas lines when installed. | Continue holding down control knob. Repeat igniting operation until air is |
|
|
| removed. |
|
|
|
|
|
| E. ODS/pilot is clogged. | Replace ODS/pilot assembly or get it serviced. |
|
|
|
|
|
| F. Gas regulator setting is not correct. | Replace gas regulator. |
|
|
|
|
6. | ODS/pilot lights, but flame | A. Control knob not fully pressed in. | Press in control knob fully. |
| goes out when control knob |
|
|
|
|
| |
| is released. | B. Control knob not pressed in long enough. | After ODS/pilot lights, keep control knob pressed in 30 seconds. |
|
|
|
|
|
| C. Manual | Fully open manual |
|
|
|
|
|
| D. Thermocouple connection loose at control valve. | Hand tighten until snug, then tighten ¹⁄₄ turn more. |
|
|
|
|
|
| E. Pilot flame not touching thermocouple, which allows |
|
|
| thermocouple to cool, causing pilot flame to go out. This |
|
|
| problem could be caused by one or both of the following: | 1). Contact local gas company. |
|
| 1). Low gas pressure | |
|
| 2). Dirty or partially clogged ODS/pilot | 2). Replace ODS/pilot assembly or get pilot serviced. |
|
|
|
|
|
| F. Thermocouple damaged. | Replace thermocouple. |
|
|
|
|
|
| G. Control valve damaged. | Replace control valve. |
|
|
|
|
7. | Burner does not light after | A. Burner orifice is clogged. | Clean burner or replace burner orifice. |
| ODS/pilot is lit. |
|
|
| B. Burner orifice diameter is too small. | Replace burner orifice. | |
|
| ||
|
|
|
|
|
| C. Inlet gas pressure is too low. | Contact local gas company. |
|
|
|
|
8. | Delayed ignition of burner. | A. Manifold pressure is too low. | Contact local gas company. |
|
|
|
|
|
| B. Burner orifice is clogged. | Clean burner or replace burner orifice. |
|
|
|
|
9. | Burner backfiring during | A. Burner orifice is clogged or damaged. | Clean burner or replace burner orifice. |
| combustion. |
|
|
| B. Burner damaged. | Replace burner. | |
|
| ||
|
|
|
|
|
| C. Gas regulator defective. | Replace gas regulator. |
|
|
|
|
10. | Slight smoke or odor during | A. Vapors from paint or curing process of logs. | Problem will stop after a few hours of operation. SFC recommends running the |
| initial operation. |
| heater with excess ventilation for the first few hours. |
|
|
|
|
11. | Heater produces a whistling | A. Turning control knob to “HI” position when burner is cold. | Turn control knob to “LO” position and let warm up for a minute. |
| noise when burner is lit. |
|
|
| B. Air in gas line. | Operate burner until air is removed from line. Have gas line checked by local gas | |
|
| ||
|
|
| company. |
|
|
|
|
|
| C. Dirty or partially clogged burner orifice. | Clean burner or replace burner orifice. |
15
