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TROUBLESHOOTING CHART (continued)
PROBLEM POSSIBLE CAUSE(S} CORRECTIVE ACTION
SLOWHOTWATERRECOVERY 1. Insufficientsecondaryair 1.
DRIPFROMRELIEFVALVE
THERMOSTATFAILSTOSHUT
OFF
COMBUSTIONODORS
2,
3.
SMOKINGANDCARBON 1.
FORMATION(SOOTING)
CONDENSATION
BURNERFLAMEFLOATSAND
LIFTS OFFPORTS
Provideventilationtowaterheater.Checkflueway
Fluebaffleand burner
2. Cleanflue,locatesourceandcorrect
3. Checkwith gasutilitycompany
4. Replacethermostat
5, Turntemperaturedialto desiredsetting
6. Installadequateheater
7, Correctpiping-diptubemustbeincoldinlet
8. Advisecustomer
1. Useapressurereducingvalveand reliefvalve
2. Lowerthethermostatsetting
3. See"ClosedSystem/ThermalExpansion"
1. Replacethermostat
2. Replacethermostat
1. Provideventilationtowaterheater.Checkflue
way,fluebaffle,burner
Clean,locatesourceandcorrect
Providefreshairventilation
2. Flueclogged
3. Lowgas pressure
4. Impropercalibration
5, Thermostatsettoolow
6. Waterheatertoosmall
7, Wrongpipingconnections
8. Wastedhotwater
1. Excessivewaterpressure
2. Heaterstacking
3. Closedwatersystem
1. Defectivethermostat
2. Impropercalibration
1. Insufficientsecondaryair
2. Flueciogged
3. HeaterinstaItedin a confinedarea
1. Insufficientsecondaryair
2. Lowgas pressure
3. Flueclogged
4. Defectivethermostat
5, Heaterinstalledin a confinedarea
6. Burnerflameyellow-lazy
1. Temperaturesettingtoo low
1. Orificetoolarge
2. Highgaspressure
3. Flueclogged
4. Colddrafts
1. Orificetoo large
1. Defectivethermostat
2. Lowgas pressure
1. Pilottineororificeclogged
2. Lowgas pressure
Provideventilationtowaterheater.Checkflueway,
flue baffle,burner
2. Checkwith gasutilitycompany
3. Clean,locatesourceandcorrect
4. Replacethermostat
5, Providefreshairventilation
6. See"BurnerFlameYellow-Lazy"
1. Increasethetemperaturesetting
1. Replacewithcorrectorifice
2. Checkwith gasutilitycompany
3. Cleanflueand burner-locatesource&correct
4. Locatesourceandcorrect
BURNERFLAMETOOHIGH 1. Replacewithcorrectorifice
FLAMEBURNSATORIFICE 1. Replacethermostat
2. Checkwith gasutilitycompany
PILOTFLAME 1. Clean,locatesourceandcorrect
TOOSMALL 2. Checkwith gasutilitycompany
26
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