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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

Summary of Contents for 184769-000

Page 1: ...CAUTION TEXT PRINTED OR OUTLINED IN RED CONTAINS INFORMATION RELATIVE TO YOUR SAFETY PLEASE READ THOROUGHLY BEFORE INSTALLING AND USING THIS APPLIANCE KEEPTHISMANUALINTHEPOCKETONHEATERFORFUTUREREFEREN...

Page 2: ...gure 1 Standards hardware items may be purchased locally A VENTPIPE B DRAFT HOOD C ANODE D HOT WATER OUTLET E OUTLET F INSULATION G GAS SUPPLY H MANUAL GAS SHUT OFF VALVE J GROUND JOINT UNION K DIRT L...

Page 3: ...combustion air flow to the burner Do not cover the instruction manual Keep it on the side of the water heater or nearby for future reference Do obtain new warning and instruction labels from A O Smit...

Page 4: ...R DIRECTLY ON A CARPETED FLOOR A FIRE HAZARD MAY RESULT Instead the water heater must be placed on a metal or wood panel extending beyond the full width and depth by at least 3 inches 76 2mm in any di...

Page 5: ...o any existing heating system or component s previously used with a non potable water heating appliance 4 When the system requires water for space heating at temperatures higher than required for dome...

Page 6: ...connector and pipe size may be needed Consult vent tables in the latest edition of the National Fuel Gas Code ANSI Z 223 1 WARNING NEVER OPERATE THE HEATER UNLESS IT IS VENTED TO THE OUTDOORSAND HASAD...

Page 7: ...his label If you don t smell gas go to next step 6 Remove or open inner door located below gas control unit 7 Find pilot follow metal tube from gas control The pilot is located in front of the burner...

Page 8: ...E ACCESS IF A SUITABLE AREA IS NOT AVAILABLE A COVER SHOULD BE INSTALLED OVER THE THERMOSTAT TO PREVENT TAMPERING Suitable covers are available through A O Smith Water Products Company 5621 W 115th St...

Page 9: ...and exposed to freezing temperatures it must be drained Water if left in the tank and allowed to freeze will damage the heater Turn off the gas and cold water inlet valve to the heater Open a nearby h...

Page 10: ...e 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 Therm...

Page 11: ...y accident to the water heater or any part thereof including freezing fire floods or lightning any misuse abuse or alteration of it any operation of it in a modified form or any attempt to repair tank...

Page 12: ...12 5621 W 115TH STREET ALSIP IL 60803 Phone 800 433 2545 Fax 800 433 2515 www aosmithwaterheaters com e mail parts hotwater com REPLACEMENTPARTS...

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