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20
TROUBLESHOOTING CHART
SLOW HOT WATER RECOVERY
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2. Flue clogged
3. Low gas pressure
4. Improper calibration
5. Thermostat set too low
6. Water heater too small
7. Wrong piping connections
8. Wasted hot water
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3. Check with gas utility company
4. Replace thermostat
5. Turn temperature dial to desired setting
6. Install adequate heater
7. Correct piping-dip tube must be in cold inlet
8. Advise customer
DRIP FROM RELIEF VALVE
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2. Heater stacking
3. Closed water system
I. Use a pressure reducing valve and relief valve
2. Lower the thermostat setting
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THERMOSTAT FAILS TO SHUT
OFF
I. Defective thermostat
2. Improper calibration
1. Replace thermostat
2. Replace thermostat
COMBUSTION ODORS
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2. Flue clogged
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2. Clean, locate source and correct
3. Provide fresh air ventilation
SMOKING AND CARBON
FORMATION (SOOTING)
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2. Low gas pressure
3. Flue clogged
4. Defective thermostat
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&YVRIV¾EQI]IPPS[PE^]
-4VSZMHIZIRXMPEXMSRXS[EXIVLIEXIV'LIGO¾YI[E]¾YI
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2. Check with gas utility company
3. Clean, locate source and correct
4. Replace thermostat
5. Provide fresh air ventilation
6. See “Burner Flame” not red on entire surface
CONDENSATION
FLAME BURNS AT ORIFICE
I. Temperature setting too low
2. Defective thermostat
3. Low gas pressure
I. Increase the temperature setting
2. Replace thermostat
3. Check with gas utility company
PILOT FLAME TOO SMALL
-4MPSXPMRISVSVM½GIGPSKKIH
2. Low gas pressure
I. Clean, locate source and correct
2. Check with gas utility company
EXCESIVE RUNIBLING NOISE
ON IGNITION
I. Pilot air intake screen blocked
I. Clean intake screen
2. Protect unit from dust and dirt
RUMBLING NOISE AND SHUT
DOWN WITH BURNERS
GOING OUT
I. Pilot air intake screen blocked
I. Clean intake screen
2. Protect unit from dust and dirt
PROBLEM
POSSIBLE CAUSE (S)
CORRECTIVE ACTION
Содержание VAPORSHIELD Residential 30
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