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SBN71-120 thru SBN85-390, SBD30-150/199 TANK TYPE COMMERCIAL
GAS WATER HEATER SERVICE HANDBOOK
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Ashland City, Tennessee 7002 ©
PRE-SERVICE CHECK LIST
Use the following checklist BEFORE you begin servicing the water heater.
1. Have you removed the cover from the controls?
____________________________________________________
Did you take notice of the status lights on the upper water
heater control?
____________________________________________________
Did you take notice of the red LED in the upper left corner of
the lower ignition control?
____________________________________________________
2.Did you note conditions of the room?
____________________________________________________
Where does the supply air come from?
____________________________________________________
Is the room clean?
____________________________________________________
What is stored with the heater?
____________________________________________________
How is the heater vented?
____________________________________________________
Are all water and gas shut-off valves open?
____________________________________________________
Are there room exhaust or air intake fans?
____________________________________________________
3. Did you note the condition of the heater?
____________________________________________________
Is the ON/OFF switch “On”?
____________________________________________________
What is the temperature of the stored water? (Test at T&P valve or nearby faucet.)
____________________________________________________
Is the thermal expansion tank installed?
____________________________________________________
4. Did you write down the complete model and serial number of the water heater? If so,
what are they? ____________________________________________________
5. Does the heater have a good ground wire connection? If not, the inducer will typically
come on for a short time (3-5 seconds), then go off, and the re
d LED will flash 8
times.