Filter
Top Products
33
OPERATIONAL CHECKLIST
COMPLAINT CAUSE
REMEDY
USER SERVICE AGENT
*Water not hot enough
Thermostat set too low.
Set thermostat dial to a higher
temperature
Upper and/or lower temperature
probe out of calibration.
Call service agent
Check continuity and resistance (Ohms)
of upper and lower temperature probes.
Replace probes if out of specication.
*Insufcient hot water
*See WATER TEMPERATURE
CONTROL WARNING (on page
12).
Thermostat set too low.
Set thermostat dial to a higher
temperature
Upper and/or lower temperature
probe out of calibration.
Call service agent
Check continuity and resistance (Ohms)
of upper and lower temperature probes.
Replace probes if out of specication.
Main manual gas shutoff valve
partially closed.
Open main manual gas shutoff
valve to fullest extent.
Heater too small for demand.
Space usage to give heater time
to restore water temperature.
Heater recovery is slower. Call service agent
Check gas input. If incorrect, adjust gas
pressure or replace burner orices.
Water temperature too hot. Thermostat set too high. Set thermostat to a lower setting.
Heater makes sounds: sizzling.
Condensation on outside of
tank, normal.
Rumbling.
Sediment accumulation on
bottom of tank.
Drain a quantity of water through
drain valve. If rumbling persists,
call a service agent.
Delime heater.
Ticking or metallic sounds.
Expansion and contraction -
normal.
Pounding.
Air chambers in piping have
become waterlogged.
Drain piping system and rell.
Heater must be off while this is
being done.
Combustion noises.
Too much primary air. Call service agent.
Overred heater; Incorrect
burners or orice for type of gas
used.
Call service agent. Check and correct as necessary.
Water leaks.
Drain valve not closed tightly.
If drain valve cannot be closed
tightly, replace.
Possible condensation if tank
is undersized or stored water is
below 110 degrees.
Increase tank temperature
setting (have service agent add
a mixing valve if setting will be
above 120 degrees).
If leakage source cannot be
corrected or identied, call
service agent.
Shut off gas supply to heater
and close cold water inlet valve
to heater.
Repair or in case of suspected tank
leakage, be certain to conrm before
replacing heater.
Gas odors.
Heater is over red
Shut off gas supply to heater
and call a service agent.
Check for sooted ue passage.
Check for obstructed vent line.
Check backdraft or lack of draft
Possible gas leaks.
Shut off gas supply to heater
and call gas company at once