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 

All Rinnai products should be Serviced at least once a year. 

 

The correct service kit should be acquired before commencing the service.  

 

The service kit will include all gaskets you may need.  

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If you do not use the correct service kit and any gaskets or seals are broken in the 
course of inspection the appliance in question has to be shut down until the 
damaged gasket or seal is replaced.  

 

If the appliance continues to operate with damaged gaskets or seals this could 
affect the performance or correct safe operation of the appliance.  

 

Servicing is required to maintain the appliances warranty. 

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If there are any questions with regards any part of the service please contact the 
Technical Department at Rinnai UK. 

 

Service Kit Contents 

The service kit contains the following items 

 

Full Electrode Kit 

 

Water Inlet Filter. 

 

The Part Numbers Required for the appliances associated with this service manual are 
as follows 

Electrode Kit — HDC1600iKBX-Kit A  

Water Inlet Filter — P50iVR-406 

SERVICE 

Summary of Contents for REU-KBM3237FFUDHD-E

Page 1: ...Service Manual REU KBM3237FFUDHD E HDC 1600i Low NOx REU KBM3237WDHD E HDC 1600e Low NOx Continuous Flow Water Heater...

Page 2: ...to Service this appliance if you are not qualified This can void the warranty This manual must be read in its entirety before Servicing the appliance If you are unsure of any point contact Rinnai UK...

Page 3: ...3 Service Information Page 4 Service Procedure Page 5 6 Gas Pressure Setting Page 7 8 Dip Switch Setting Page 9 Temperature Setting Page 10 Contact Information Page 12 CONTENTS...

Page 4: ...the appliance continues to operate with damaged gaskets or seals this could affect the performance or correct safe operation of the appliance Servicing is required to maintain the appliances warranty...

Page 5: ...teps below Isolate the appliance by the plug or fused spur and isolate the gas supply Ensure the appliance is cool enough for the Electrode Kit to be removed Remove the Spark Electrode Ionisation Elec...

Page 6: ...et With the appliance in Normal Operation mode you can carry out a Flue Gas Analysis if you wish to do so Please see the below table for normal operating parameters If you have concerns over any readi...

Page 7: ...dip switches Fig 1 are in the correct position for the type of gas Nat or LPG you are using see page 40 5 Attach pressure gauge to burner test point Fig 2 6 Turn ON the gas supply 7 Turn ON 230V power...

Page 8: ...OFF position Fig 5 17 Close hot water taps and turn OFF the gas supply and 230V power supply 18 Remove pressure gauge and replace sealing screw Turn ON the gas supply and power 19 Operate unit and ch...

Page 9: ...ction indicates position of dip switch OFF ON OFF ON OFF ON Model Type FF Long FF Short W FF Long Common vent1 factory setting factory setting Common vent2 FE Off On Off On Off On Off On SW1 1 SW1 1 S...

Page 10: ...10 TEMPERATURE SETTING...

Page 11: ...11...

Page 12: ...12 UK LTD 9 Christleton Court Manor Park Runcorn Cheshire WA7 1ST Tel 01928 595959 Fax 01928 531880 E mail engineer rinnaiuk com Web www rinnaiuk com CONTACT...

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