26
25
COMMON ISSUES
CONDITION
Burner will
not ignite
Burner flame
floats-lifts off
ports
Burner flame
yellow lazy
Burner flame
too high
Flame burns
at orifice
Pilot will not
remain lit
No gas
Dirt in gas line
Pilot line clogged
Main burner line clogged
Defective thermostat
Thermostat set too low
Heater installed in confined area
Defective gas valve
High gas pressure
Orifice too large
Flue clogged
Heater installed in confined area
Cold drafts
Insufficient secondary air
Low gas pressure
Flue clogged
Main burner line clogged
Heater installed in confined area
Low gas pressure
Defective thermostat
No gas
Dirt in gas lines
Pilot line clogged
Check with utility
Replace with new thermostat
Check with utility
Notify utility-install dirt trap in gas lines
Clean-check for source of trouble & correct
Insufficient secondary air
Orifice too large
Low gas pressure
Burner surface damaged
Check with utility
Replace burner
Clear the area near the heater
Replace with correct orifice
Clear the area near the heater
Check with utility
Clean-check for source of trouble & correct
Clean-check for source of trouble & correct
Provide ventilation by use of louvers in wall or duct
Check with utility
Replace with correct orifice
Clean-check for source of trouble & correct
Provide ventilation by use of louvers in wall or duct
Check source & correct
Check with utility
Notify utility-install dirt trap in gas lines
Clean-check for source of trouble & correct
Clean-check for source of trouble & correct
Replace with new thermostat
Turn temperature dial to desired temperature
Provide ventilation by use of louvers in wall or duct
Replace with new gas valve
CAUSE
REMEDY
Pilot flame
too small
Low gas pressure
Check with utility
Pilot line clogged
Clean-check for source of trouble & correct
Pilot line not clogged
Adjust pilot
FOLLOWING IS A LIST OF THE MOST COMMON COMPLAINTS RELATED TO THE USE OF WATER HEATERS. MANY COMPLAINTS
ARE DUE TO ITEMS NOT DIRECTLY RELATED TO THE WATER HEATER. DO NOT ATTEMPT TO SERVICE THE WATER HEATER OR
PERFORM OTHER RECOMMENDATIONS ON THIS LIST UNLESS YOU ARE TRAINED AND QUALIFIED TO DO SO.
Figure 16
PILOT AND MAIN BURNER
WATER HEATER SOUNDS
I. Possible noises due to expansion and contraction of some metal parts during periods of heat-up and cool-down do not represent harmful or
dangerous conditions.
2. Sediment buildup in the tank bottom will create varying amounts of noise, and left in the tank, will cause premature tank failure.
3. Condensation causes sizzling and popping within the burner areas during heating and cooling periods and should be considered normal. See
Condensation.
DRAINING
The water should be drained if being shut down during freezing temperatures. Also, periodic draining and cleaning of sediment from the tank may
be necessary. See Page 22.
I. Turn gas valve knob clockwise to the OFF position.
2. Close the cold water inlet valve to the heater.
3. Open a nearby hot water faucet.
4. Open the heater drain valve.
5. If the heater is going to be shut down and drained for an extended period, the drain valve should be left open.
THIS WATER CAN BE HOT
WARNING
THIS WATER HEATER SHOULD NOT BE USED TO HEAT A SPA OR
HOT TUB
THIS WATER HEATER IS NOT INTENDED OR SUITED FOR USE WITH A HOT TUB OR SPA AND MAY NOT BE USED FORTHIS
PURPOSE.
SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER, SERVICE AGENCY, OR GAS SUPPLIER.
CAUTION
PILOT
MANIFOLD
BURNER
