TROUBLE- SHOOTING
Continued
OBSERVED | POSSIBLE | REMEDY | ||
PROBLEM | CAUSE | |||
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When ignitor button is | 1. | Gas supply turned off or | 1. | Turn on gas supply or |
pressed in, there is a |
| manual shutoff valve |
| open manual shutoff |
spark at ODS/pilot but |
| closed. |
| valve. |
no ignition. | 2. | Control knob not fully | 2. | Fully press in control |
|
| pressed in while pressing |
| knob while pressing igni- |
|
| ignitor button (non- |
| tor button |
|
| thermostat models only). |
| stat models only). |
|
| Thermostat control knob |
| Fully press in thermostat |
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| not fully pressed in while |
| control knob while press- |
|
| pressing ignitor button |
| ing ignitor button (ther- |
|
| (thermostat models only). |
| mostat models only). |
| 3. | Air in gas lines when | 3. | Continue holding down |
|
| installed. |
| control knob. Repeat |
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| igniting operation until |
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|
| air is removed. |
| 4. | ODS/pilot is clogged. | 4. | Clean ODS/pilot (see |
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| Cleaning and Mainte- |
|
|
|
| nance, page 26) or |
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|
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| replace ODS/pilot |
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|
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| assembly. |
| 5. | Gas regulator setting is | 5. | Replace gas regulator. |
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| not correct. |
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| 6. | Thermostat control knob | 6. | Turn thermostat control |
|
| not in pilot position. |
| knob to pilot position. |
ODS/pilot lights but | 1. | Control knob not fully |
flame goes out when |
| pressed in. |
control knob is | 2. | Control knob not pressed |
released |
| in long enough. |
| 3. | Manual shutoff valve not |
|
| fully open. |
| 4. | Thermocouple connection |
|
| loose at control valve. |
| 5. | Pilot flame not touching |
|
| thermocouple, which |
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| allows thermocouple to |
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| cool, causing pilot flame |
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| to go out. This problem |
|
| could be caused by one or |
|
| both of the following: |
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| A) Low gas pressure |
|
| B) Dirty or partially |
|
| clogged ODS/pilot |
| 6. | Thermocouple damaged. |
| 7. | Control valve damaged. |
| 8. | Safety interlock system |
|
| has been triggered |
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| (thermostat models only). |
1.Press in control knob fully.
2.After ODS/pilot lights, keep control knob pressed in 30 seconds.
3.Fully open manual shut- off valve.
4.Hand tighten until snug, then tighten 1/4 turn more.
5.A) Contact local natural gas company.
B)Clean ODS/pilot (see Cleaning and Mainte- nance, page 26) or replace ODS/pilot assembly.
6.Replace thermocouple.
7.Replace control valve.
8.Wait one minute for safety interlock system to reset. Repeat ignition operation.
Continued
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