Service Guide
TroubleshootingGuide
2|Page
TableofContents
1. SPECIFICATIONS.……………………………………………………………………………..……………………3
2. INTRODUCTION.…………………………………………………………………………………..………………4
3. NORMALOPERATION…………….………………………………………………………………………..…..5
Activation………………………………………………………………………………………………….5
Operation..………………………………………………………………………………………………..5
Shutdown……….………….………….……………………………………………………………..…..5
4. INSTALLATION….…………………………………………………………………………….…………………….6
Venting…………….……………………………… ………………………………………………..…..…6
GasLine…………….………………………………………………………………………………………6
WaterLine……………………..…….……………………………………………………………..…..6
PowerSupply..…………………………………………………………………………………………..6
5. TROUBLESHOOTING....…………………………………………………………………………………………7
PreliminaryChecklist.………………………………………………………………………..…..…7
GeneralProblems..……………………………………………………………………………………8
ErrorCodes.………………………….……………………………………………………………..….12
Procedures.……..……………………………………………………………………………………….19
VerifyingproperDipswitchsettings...……………………..………………….…19
Drainingtheunit...…………………………………………………………………………21
Cleaningthefilter..………………………………………….…………………………….21
CheckingforaCrossConnection..………………………………………….………21
CheckforReverseConnection..………………………………………….………….21
Checkgassupplypressure……..…………………………………….……………….21
Purgethegaslineofair…………..……………………………….…………………..22
Adjustingmanifoldpressure……..…………………………………….…………….22
Resettingthecomputerboard……..…………………………………….…………23
CheckingtheOHCF………………………..….………………………………………….24
6. MAINTENANCE….…..……………………………………………….………… …………………………….……25
RodAssembly..…………………………………………………………………………………..…..…25
Burner&RodAssembly…..………………………………………………………………………..26
HeatExchanger…..….…………….……………………………………………………………..…..29
FlowSensor….….………………………………………………………………………………………..31
DescalingtheUnit……………………………………………………………………………………..32
TroubleshootingGuide