A.O. Smith 110 - Page 11

TroubleshootingGuide
11|Page
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UNITHASPOWER,GAS,ANDWATERBUTDOESNO TTURNON
• Fornewunitinstalls,checktomakesuretheunitisnotplumbedinbackwards.
o Shutoffcoldwaterfeedonly.
o Opennearesthotwatertap.Waterflowshouldstop.Ifnotthereisacoldwatercross
connection.
o OpenPressureReliefValve.Waterflowshouldstop.
Ifnotunitisplumbedin
backwards.
• Cleanthefilter(p.21). 
• Ifthefanneverinitiates,checkforafouledwaterflowsensor(p.31). 
EASY‐LINKSYSTEMSE TUP(MULTIPLEHEATERSETUP) 
• RefertotheInstallationManualforpropersetup.
• UnitNumbering
o Themasterunitwillalwaysbeassignednumber1.Theremainingunitswillberandomly
assignednumbers2‐4(ifthereare4unitsintheEasy‐Linksystem).
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