Specifications

TroubleshootingGuide
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2|Page
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TableofContents
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1. SPECIFICATIONS.…………………………………………………………………………………………………………3
2. INTRODUCTION……………………….………………………………….……..………………………………………4
3. NORMALOPERATION……………………………………………………………………….…………………..……5
Activation……………….…………………………………….………………………………………….…….5
Operation..……………………………………………………………...……………………………………..5
Shutdown…………………………………………………….…….………….……….……………………….5 
4. INSTALLATION….…………………………………………………………….……………………………………….….6
Venting……………………………………………………….……….…………………………………….……6
GasLine………………………………………………….…………….…………………………………………6
WaterLine………………………………………………….…………………..…….………………………..7
PowerSupply…………………………………………………...……………………………………………..7
5. TROUBLESHOOTING………………………………………………………….....……………………………………8
PreliminaryChecklist……………………………………………………………..…………………..…..8 
GeneralProblems…………………………………………………..…….…………………………………9
ErrorCodes……………………………………………………………………………….………………..….13
Procedures…………………………………………………………..………………………………………….22
VerifyingproperDipswitchsettings……………………………………………….....…22
Drainingtheunit…………………………………………………..……………………………..23
Cleaningthefilter………………………………………………….…………………………….23
CheckingforaCrossConnection………………………………………………….………24
CheckforReverseConnection……………………………………………….…………….24
Checkgassupplypressure……………………………………………….………………….24
Purgethegaslineofair………………………………………………….………………….. 24
Adjustingmanifoldpressure……………………………………………….……………….25
Resettingthecomputerboard……………………………………………….……………
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CheckingtheOHCF……………………………………………….…………………………….26
6. MAINTENANCE……………………………………………………………….…..………………………………………27
RodAssembly………………………………………………………………………………………………..…27
Burner&RodAssembly………………..………………………………….…..……………….………..28
HeatExchanger…………………………………………..……….…..….…………….………….…..…..31
FlowSensor………………………………………………..……..….…………………………………………34
DescalingtheUnit………………………………………..………….……………………………………...35
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TroubleshootingGuide