Operational Checklist - American Water Heater BCG3 Instruction Manual

complaint
*Water not hot enough
*insufficient hot water
*see WaTER TEMPERaTuRE
CoNTRoL WARNiNG (on page
11).
Water temperature too hot.
Heater makes sounds: sizzling.
Rumbling.
Ticking or metallic sounds.
Pounding.
Combustion noises.
Water leaks.
Gas odors.

operational checklist

cause
Thermostat set too low.
upper and/or lower temperature
probe out of calibration.
Thermostat set too low.
upper and/or lower temperature
probe out of calibration.
Main manual gas shutoff valve
partially closed.
Heater too small for demand.
Heater recovery is slower.
Gas pressure switch doesn't close.
Thermostat set too high.
Condensation on outside of
tank, normal.
Sediment accumulation on
bottom of tank.
expansion and contraction -
normal.
Air chambers in piping have
become waterlogged.
Too much primary air.
overfired heater; incorrect
burners or orifice for type of gas
used.
Drain valve not closed tightly.
Possible condensation if tank
is undersized or stored water is
below 110 degrees.
if leakage source cannot be
corrected or identified, call
service agent.
Heater is over fired
Possible gas leaks.
user
Set thermostat dial to a higher
temperature
Call service agent
Set thermostat dial to a higher
temperature
Call service agent
open main manual gas shutoff
valve to fullest extent.
Space usage to give heater time
to restore water temperature.
Call service agent
Call service agent
Set thermostat to a lower setting.
Drain a quantity of water through
drain valve. if rumbling persists,
call a service agent.
Drain piping system and refill.
Heater must be off while this is
being done.
Call service agent.
Call service agent.
if drain valve cannot be closed
tightly, replace.
increase tank temperature
setting (add a mixing valve
if setting will be above 120
degrees).
shut off gas supply to heater
and close cold water inlet valve
to heater.
shut off gas supply to heater
and call a service agent.
shut off gas supply to heater
and call gas company at once
34
remedy
serVice agent
Check continuity and resistance (ohms)
of upper and lower temperature probes.
Replace probes if out of specification.
Check continuity and resistance (ohms)
of upper and lower temperature probes.
Replace probes if out of specification.
Check gas input. if incorrect, adjust gas
pressure or replace burner orifices.
Temporarily bypass the gas pressure
switch connections and measure
gas supply pressure while the unit is
running. if less than 5.2" WC, adjust
the gas supply pressure above 5.2" but
less than 11". if greater than 5.2" WC,
replace the gas pressure switch.
Delime heater.
Check and correct as necessary.
Repair or in case of suspected tank
leakage, be certain to confirm before
replacing heater.
Check for sooted flue passage.
Check for obstructed vent line.
Check backdraft or lack of draft