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|
| 21 |
SYMPTOM |
| PROBLEM |
| TEST SOLUTION | ||
Flames are |
| Unit is | - | Check pressure readings: | ||
consistently too |
| fired. |
|
| - Inlet pressure can be checked by turning screw (A) | |
large or too small. |
|
|
|
| ||
Carboning occurs. |
| B | A |
| pressure gauge tubing over the test point. Check | |
|
|
|
| with burner operating on “HI”. Gauge should read 7” | ||
|
|
|
|
|
| (minimum 4.5”) water column for natural gas or 13” |
|
|
|
|
|
| (11” minimum) water column for propane. |
|
|
|
|
| - Outlet pressure can be checked the same as above | |
|
| OL |
|
|
| using screw (B). Check with burner operating on |
|
|
| N | F |
| “HI”. Gauge should read 3.5” water column for |
|
|
|
| O |
|
|
|
| HI | O | F |
| natural gas or 10” water column for propane. |
|
|
|
| TOLI |
| |
|
|
|
| P |
|
|
LI |
|
|
| - AFTER TAKING PRESSURE READINGS, BE | ||
TO | P |
|
|
|
| SURE TO TURN SCREWS CLOCKWISE FIRMLY |
|
|
|
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| ||
|
|
|
|
|
| |
PILOT SCREW |
|
|
|
| TO RESEAL. DO NOT OVER TORQUE. | |
|
|
| - Leak test with a soap and water solution. | |||
|
|
|
|
| ||
| Air shutter improperly | - Return air shutter to specified opening, see |
| adjusted. | “VENTURI ADJUSTMENT” section. |
Exhaust fumes | Not enough combustion | - Increase fresh air supply. (Use one of the methods |
smelled in room, | air. | described in ANSI Z223.1 Section 5.3 or the |
headaches. |
| applicable local code.) |
| Not enough ventilation air. | - Increase fresh air supply. (Use one of the methods |
|
| described in ANSI Z223.1 Section 5.3 or the |
|
| applicable local code.) |
Flame is impinging on the logs or combustion chamber.
-Check that the logs are correctly positioned.
-Open air shutter to increase the primary air. See “VENTURI ADJUSTMENT” section.
-Check the input rate: check the manifold pressure and orifice size as specified by the rating plate values.
Remote wall | Wall switch is mounted | - | Reverse. | |
switch is in “off” | upside down. |
|
| |
position; main | Remote wall switch is | - | Replace. | |
burner comes on | grounding. |
|
| |
when gas knob |
|
|
| |
Remote wall switch wire is | - Check for ground (short); repair ground or replace | |||
is turned to “ON” | ||||
grounding. |
| wire. | ||
position. |
| |||
Faulty valve. | - | Replace. | ||
| ||||
If optional catalytic door is used, White / grey film forms on the glass.
Sulphur from fuel is being | - | Clean glass with recommended gas appliance glass |
deposited on the glass, |
| cleaner. DO NOT CLEAN GLASS WHEN HOT! |
logs, rocks, media or | - | If deposits are not cleaned off regularly, the glass |
combustion surfaces. |
| may become permanently market. |
42.4_3_A
