John Wood Atmospheric Gas (ENERGY STAR) - NEW - Manuel (Page 28)

28
TROUBLESHOOTING CHART
PROBLEM POSSIBLE CAUSE(S) CORRECTIVE ACTION
BURNER WILL NOT IGNITE 1. Pilot will not light
2. Thermostat set too low
3. No
gas
4. Dirt in the gas lines
5. Pilot line clogged
6. Main burner line clogged
7. Non-functioning gas control valve/thermo-
stat
8. Heater installed in a confined area
9. Flue Damper not functioning
1. See PILOT WILL NOT LIGHT OR REMAIN
LIT
2. Turn temp. dial to desired temperature
3. Check with gas utility company
4. Notify utility-install trap in gas line
5. Clean, locate source and correct
6. Clean, locate source and correct
7. Replace gas control valve/thermostat
8. Provide fresh air ventilation
9. Cycle power to the water heater off and on. If
problem persists replace the flue damper
PILOT WILL NOT LIGHT OR
REMAIN LIT
1. Non-functioning Pilot\Igniter-Flame Sensor
2. The thermal switch tripped
3. Igniter wire connection loose
4. Air in gas line
5. Low gas pressure
6. No
gas
7. Dirt in gas lines
8. Cold
drafts
9. Thermostat ECO switch open
10. Pilot line or orifice clogged
11. Air for combustion obstructed
12. FV Senor Lockout
13. Flue Damper not functioning
1. See Status Light Code Troubleshooting Table
section
2. See Pilot Light Troubleshooting Flowchart
section
3. Seat connector firmly in socket
4. Bleed the air from the gas line
5. Check with gas utility company
6. Check with gas utility company
7. Notify utility-install dirt trap in gas line
8. Locate source and correct
9. Replace
thermostat
10. Clean, locate source and correct
11. See maintenance section for inspection and
cleaning of flame trap.
12. Contact a qualified person to reset the sensor
13. Cycle power to the water heater off and on. If
problem persists replace the flue damper
BURNER FLAME YELLOW-
LAZY
1. Insufficient secondary air
2. Low gas pressure
3. Flue
clogged
4. Flue damper partially open
5. Main burner line clogged
6. Heater installed in a confined area
7. Obstruction in main burner orifice
1. Provide ventilation to water heater
2. Check with gas utility company
3. Clean, locate source and correct
4. Cycle gas control valve/thermostat OFF then
ON. If problem persists replace damper
5. Clean, locate source and correct
6. Proper fresh air ventilation
7. Clean or replace orifice
HIGH OPERATION COSTS 1. Thermostat set too high
2. Sediment or lime in tank
3. Water heater too small for job
4. Wrong piping connections
5. Leaking
faucets
6. Gas leaks
7. Wasted hot water
8. Long runs of exposed piping
9. Hot water piping in exposed wall
10. Flue Damper seal not functioning
1. Set temperature dial to lower setting
2. Drain/flush-provide water treatment if needed
3. Install adequate heater
4. Correct piping-dip tube must be in cold inlet
5. Repair
faucets
6. Check with utility-repair at once
7. Advise
customer
8. Insulate piping
9. Insulate piping
10. Replace the flue damper
FVIR System Operational Checklist
1. Manifold gasket properly sealed.
2. Viewport not damaged or cracked.
3. Flame-arrestor free of debris and undamaged.
4. Two piece wire connector properly installed.
5. No leaks at pilot and manifold connection.
6. Manifold door screws securely tightened.
7. Depress the button on the thermal switch