A.O. Smith 184769-000 - Manual (Page 10)

10
TROUBLESHOOTING
Please check guidelines below. For your safety, water heater service should be performed only by a qualified service technician.
Read the GENERAL SAFETY INFORMATION section first.
indicates high water conductivity and should be checked and/
or replaced more often than an anode rod that appears to be
intact. Replacement of a depleted anode rod can extend the life of your water heater. Inspection should be conducted by a
qualified technician, and at a minimum should be checked
annually after the warranty period.
WATER LEAKS
LEAKING T & P
HOT WATER ODORS
(Refer to CATHODIC
PROTECTION,)
PILOT OUTAGE
PILOT WILL
NOT LIGHT
NOT ENOUGH
OR
NO HOT WATER
WATER TOO HOT
WATER HEATER
SOUNDS:
SIZZLING·RUMBLING
SOOTING
I mproperly sealed, hot or cold supply connections,
relief valve, drain valve or thermostat threads. Tighten threaded connections.
Leakage from other appliances or water lines. Inspect other appliances near water heater.
Condensation of flue products. Refer to CONDENSATION.
Thermal expansion in closed water system. Install thermal expansion tank
(DO NOT plug T & P valve).
Improperly seated valve. Check relief valve for proper operation
(DO NOT plug T & P valve).
High sulfate or mineral content in water supply. Drain and flush heater thoroughly, then refill.
Bacteria in water supply. Chlorinate or aerate water supply.
Dirty pilot burner. Clean pilot assembly.
Thermocouple tip is not in contact with pilot flame. Insert thermocouple correctly.
Thermocouple malfunction. Replace thermocouple
Thermocouple malfunction. Check thermostat.
Gas knob dial not positioned correctly. Refer to LIGHTING INSTRUCTIONS.
Pilot orifice clogged. Clean or replace pilot orifice.
Pinched or clogged pilot tube. Replace pilot tube.
Main gas supply off. Turn on main gas shutoff valve.
Heater not lit or thermostat not on. Refer to LIGHTING INSTRUCTIONS.
Thermostat set too low. Refer to TEMPERATURE REGULATION
Heater undersized. Reduce hot water use.
Low gas pressure. Contact dealer.
Incoming water is unusually cold. Allow more time for heater to re-heat.
Leaking hot water pipes or fixtures. Have plumber check and repair leaks.
High temperature limit switch activated. Contact dealer to determine cause. See
HIGH TEMPERATURE SWITCH note below.
Thermostat set too high. Refer to HIGH TEMPERATURE REGULATION
Condensation dripping on burner. Refer to CONDENSATION above.
Sediment at bottom of heater tank. Clean sediment from tank. Refer to DRAINING
instructions in Maintenance section of manual.
Improper combustion Refer to AIR REQUIREMENTS on page 4.
PROBLEM CAUSE SOLUTION