Rinnai Q series Скачать руководство пользователя страница 1

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Q - Series Boiler 

 

Troubleshooting Manual 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 

 
 
 
 
 
 

     

WARNING

 

There are a number of live tests that are required when fault finding this product.  Extreme care should be used 
at all times to avoid contact with energized components inside the product.   

You MUST be a qualified service person before proceeding with these test instructions. 

Before checking resistance readings, turn off power source to unit and then isolate each item to be checked 
from the circuit by unplugging it. 

When setting gas pressures on one of these units, please check the complete model number you are trouble-
shooting.  Gas pressures and dip switches can vary among models.   Always check the rating plate for complete 
information and follow directions. 

If any of the original wire as supplied with the appliance must 
be replaced, it must be replaced with type 18 AWG wire or its 
equivalent. 

Label all wires prior to disconnection when 
servicing controls.  Wiring errors can cause 
improper and dangerous operation. 

     

CAUTION

 

 

Содержание Q series

Страница 1: ...e to unit and then isolate each item to be checked from the circuit by unplugging it When setting gas pressures on one of these units please check the complete model number you are trouble shooting Gas pressures and dip switches can vary among models Always check the rating plate for complete information and follow directions If any of the original wire as supplied with the appliance must be repla...

Страница 2: ... indication Short reference 5 BL 01 6 BL 05 7 BL 11 8 BL 12 9 BL 60 10 BL 67 11 BL 80 12 BL 81 13 BL 82 14 BL 84 15 BL 85 16 BL 86 17 E 00 18 E 01 19 E 02 20 E 03 21 E 04 22 E 05 23 E 07 24 E 11 25 E 12 26 E 13 27 E 14 28 E 18 29 E 19 30 E 24 31 E 26 32 E 28 33 E 29 34 E 31 35 ...

Страница 3: ...51 Starting up filling and de aerating the boiler Water Requirements 52 Freeze Protection 53 Filling the heating system 54 Altering adjustments 55 PARAMETER mode 56 Information Service and Error Modes 57 Activating factory setting Green button function 58 Isolating the boiler 59 Reset service interval counter 60 2013 Rinnai America Corporation 103 International Drive Peachtree City GA 30269 Toll F...

Страница 4: ...4 008082013GW ...

Страница 5: ...5 008082013GW Parts of the Boiler ...

Страница 6: ...ower Btu of boiler bL 67 Block 67 A T has been detected between flow and the return sensor whereas the burner is not in operation After the T has disappeared the block will clear itself bL 85 Block 85 The control has not detected water flow The venting cycle pro purge cycle has started If during this cycle water flow is detected the pro purge cycle stops the burner will then fire up Error E with a...

Страница 7: ...EVER wire boiler safeties in parallel Refer to wiring diagram in the boiler manual Trace connections 24 and 25 above back to the MCBA These will be located on Plug X5 on the MCBA on pins 2 and 6 The 120 volt external pump is for E and QP model boilers Rectify error by determining which external contact is open If external contacts are not being used place jumper across terminals 24 25 ...

Страница 8: ...oor sensor contact open not connected BL 05 Rectify error by determining if outdoor sensor is faulty wiring to senor is broken or damaged or if the connection at terminal 18 19 on main control board is properly connected ...

Страница 9: ...tion of the boiler plumbing connections and all components 4 Check minimum and maximum temperature difference in Parameter step 46 and 47 5 Activated room sensor RS100 in non leading room closed thermostatic radiator valves Check pump height Should this be check pump head Do not understand Operation is normally possible for the hot water supply during the block The pump continues to operate at min...

Страница 10: ... closed blocked water filter restriction in DHW tank to high 3 Verify proper installation of the boiler plumbing connections and all components 4 Ensure 3 way valve is functioning properly and is not clogged or full of pollution Operation is normally possible for the central heating installation during the block The pump continues to operate at minimum capacity during Rectify Issue Check following...

Страница 11: ... be reprogrammed if the bL60 code clears up If after resetting the boiler the bL60 still appears you will need to replace the sub PC board and reprogram the MCBA The sub PC board must be from a conversation kit for the same gas type as your boiler If conversion parts are not locally accessible contact Rinnai Tech Support for assistance These parameters cannot be accessed in the field and may requi...

Страница 12: ...red the block will disappear A temperature difference has been detected between the supply T1 sensor and the return T2 sensor while the burner is not in operation After the average ΔT has disappeared the blocking code will go away T2 Sensor T1 Sensor Check the supply T1 sensor and the return T2 sensor for the proper resistance valve Replace if found to be defective ...

Страница 13: ...n place this sensor was never installed which means the circuit has somehow been jumped out Contact Rinnai tech support for assist if you get the bL80 without the T5 sensor being installed Inspect vent system and all air passages ways for blockage 212 F is the default temperature setting for parameter 84 Verify to see if the temperature setting for this parameter is set higher than the default If ...

Страница 14: ...ing rain during extreme weather Methods to rectify A ORDER AND INSTALL A FLUE GAS SENSOR This may not be possible in cold weather when boiler must operate immediately if shipping the part is required B CHANGE PARA 80 TO 20 AND INSTALL LOW VOLTAGE JUMPER ON FLUE GAS PLUG plug located on upper left hand side of the heat exchanger in the harness PARA 20 setting causes the MCBA to look for an open clo...

Страница 15: ...15 008082013GW Flue sensor or thermostat contact open ...

Страница 16: ... factory jumper on the flue gas sensor is loose or has fallen out 212 F is the default temperature setting for parameter 84 Verify to see if the temperature setting for this parameter is set higher than the default If so inspect vent system for blockage ...

Страница 17: ... tells the MCBA that the pump has started The air bubble will absorb that spike Bleed all air from the system If an additional expansion tank is placed in the system alongside an E boiler that tank can absorb the pump pressure spike as well You may need to isolate that tank to see if this corrects the issue with BL 85 An expansion that is not charged properly can cause the pump s pressure spike no...

Страница 18: ...008082013GW The frequency of the power supply deviates more than or 1 5 Hz If using a back up generator ensure it is properly grounded and providing a clean steady voltage and sign wave of 59 3 to 60 8 Hz ...

Страница 19: ...ler is not firing can trigger the E00 code Check whether the ionization cable and or the electrode are responsible for a short circuit Remove the plugs from the ionization cable connected to the control unit and to the electrode Now using a ohm meter take a measurement between the ionization connection and the ground Now refit it part by part until a short circuit takes place ...

Страница 20: ...lock Check for a short circuit in the disconnected components Next switch on power to the control board with all the 24 volt components disconnected Reconnect the components one at a time if code E 01 appears when you plug up a component that component has a short circuit Rectify any short circuits or replace defective component causing short circuit ...

Страница 21: ... flame is burning no E02 will occur unit will attempt to relight 6 times E02 only occurs after 6 failed attempts for re ignition Propane gas with low BTU value or a brand new tank that may contain something other than pure propane may cause E02 Check against a good known source of gas The minimum ionization current should be 4 micro amps Check INFO step 48 the O2 should be a minimum of 4 4 for NG ...

Страница 22: ... valve Check across terminals 4 and 5 at plug X5 on the main control board See wiring diagram for your boiler for terminal locations In some cases an E03 is caused from a loose connection on wires to the gas valve This faulty connection may be in the Molex plug X5 on the MCBA Examine plug closely for bayonets that may have backed out of plastic casing ...

Страница 23: ...ower is once again switched on if the error causing the interference is no longer present this message is The boiler automatically indicates this message if during an error read out the electrical power to the boiler is shut off After the power is once again switched on if the error causing the interference is no longer present this message is given ...

Страница 24: ...e it onto the new control The controller will automatically load the program into the new control unit Check ribbon cable between the control unit and the display board A loose connection between these two points can cause communication issues between boards leading to an error code If ribbon cable is loose or damaged repair or replace cable as needed ...

Страница 25: ...25 008082013GW E 06 Control unit error Moisture on the PC board check for leaks on or in the boiler Replace PC board if needed ...

Страница 26: ...26 008082013GW Replace the control unit The controller will automatically load the program into the new control unit ...

Страница 27: ...27 008082013GW ...

Страница 28: ...Clean the pump and or filter when necessary Flush complete system VERY RARE THAT AIR IS AT FAULT If air is present it will be indicated by a gurgling noise Normally when an airlock is present a BL85 will be indicated ...

Страница 29: ...29 008082013GW Replace the control unit The controller will automatically load the program into the new control unit ...

Страница 30: ...n from an end switch or pump relay box connected to terms 22 and 23 Install isolating relay on 22 and 23 or replace faulty end switch or pump relay box connected to 22 and 23 NO VOLTAGE MUST COME INTO 22 and T3 flow sensor ground connection T3 flow sensor failure or controller failure To determine flow temperatures for T3 use the chart to the left for proper resistance values for a set temperature...

Страница 31: ...31 008082013GW Signal maximum flow water temperature exceeded T1 212 F T1 Sensor Actual flow temperature should be verified before T1 is determined Check actual flow temperature ...

Страница 32: ...32 008082013GW T2 Sensor located under T1 sensor Signal maximum return water temperature exceeded T2 212 F ...

Страница 33: ...e Transducer T2 sensor T1 and T2 swapped T2 temperature is measured to be higher than T1 Check resistance value of T1 and T2 See resistance chart under error 19 for resistance values Replace T and or T2 if found to be defective ...

Страница 34: ...34 008082013GW Replace MCBA board main board ...

Страница 35: ...nal from fan motor Check the wiring harness to the fan motor and control unit Check power supply to motor during combustion process should be 24 volts DC Fan motor wiring harness constant 24 volts DC Tachometer cable Feedback signal ...

Страница 36: ... 5 during the starting sequence If during fan check 5 the fan remains spinning more than 150 rpms an E29 will occur Causes Wind driving into a concentric terminal Replace with 90 degree terminal or for best results use a roof terminal Venting running a long distance in a cold attic space causing a thermo syphon after fan check Use room air for combustion if conforming to NFPA 111 guidelines for ro...

Страница 37: ...37 008082013GW T1 Sensor Internal shut down of supply sensor T1 T1 sensor short circuit is indicated by low ohm reading Replace defective sensor see resistance values in chart on E 18 above ...

Страница 38: ...38 008082013GW Shut down of return sensor T2 T2 sensor short circuit is indicated by low ohm reading Replace defective sensor Refer to resistance chart on E 19 above ...

Страница 39: ...39 008082013GW T1 Sensor Contact for supply sensor T1 open indicated by infinite ohm reading ...

Страница 40: ...40 008082013GW T2 Sensor Contact for the return sensor T2 open indicated by infinite ohm reading Remove the plug from the flow sensor as a result of which error 32 occurs ...

Страница 41: ...41 008082013GW ...

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Страница 43: ...43 008082013GW Electrical short circuit possible water damage to MCBA main board ...

Страница 44: ...s error is displayed there is no software on the MCBA or display A RINNAI conversion kit specific for the boiler model and fuel type must be installed Follow the conversion kit instructions to load the software to the MCBA ...

Страница 45: ...45 008082013GW Q Series ribbon cable problem or defective key pad Replace ribbon cable Ribbon cable problem ...

Страница 46: ...flue gas temperature Adjust parameter 84 default 212 F See location of T5 sensor below If red cap is installed T5 sensor is not being used T5 Senor if installed Moisture on the flue gas sensor wires or terminals could cause a false temperature reading ...

Страница 47: ...47 008082013GW E 115 Replace MCBA board ...

Страница 48: ...e it is plugged in properly This is the low voltage fuse that is located directly next to the PCB board transformer The OEM fuse has colored stripes the spare fuse located on control cover is a clear glass Please verify the amp rating 4 amp on the metal rim of the fuse before installing it It must be the same amperage as the fuse being replaced ...

Страница 49: ...49 008082013GW Additional Troubleshooting Instructions ...

Страница 50: ...50 008082013GW ...

Страница 51: ...51 008082013GW Checking the O2 Setting ...

Страница 52: ...52 008082013GW Burner off while there is a demand for central heat of DHW Burner off when room thermostat is demanding or burner off when DHW is calling Boiler Controls ...

Страница 53: ...53 008082013GW Pressing R or the reset button for more than 5 seconds will activate a 17 minute de aeration cycle This LED should never be left on Explanation of the function buttons ...

Страница 54: ...54 008082013GW Starting up Filling and de aerating the boiler and installation Requirements of the water system ...

Страница 55: ...55 008082013GW ...

Страница 56: ...e installation when necessary The working pressure of the installation should be between 16 and 18 PSI when the system is cold Adjust your auto feed to 16 18 PSI Note You must have either a hot water or heat demand to activate de aeration Filling the heating system ...

Страница 57: ...57 008082013GW Altering adjustments ...

Страница 58: ...r 10 the Flow switch is still in the circuit and if it sticks closed it can keep the boiler locked in DHW and code 6 with appear on the screen Unplug flow switch as it is not needed Do not waste time taking switch out and cleaning it just unplug it electrically PARA 36 Q combi 01 factory setting load sharing on 00 Alternate setting Load sharing off MCBA thinks a grey non modulating valve is being ...

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Страница 60: ...60 008082013GW Activating factory settings Green button function ...

Страница 61: ...61 008082013GW Isolating the boiler ...

Страница 62: ...62 008082013GW Reset service interval counter ...

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