Fault Finding; Manifold Pack Preventative Maintenance - Rinnai MP2200 Operation & Installation Manual

FAULT FINDING

MANIFOLD PACK PREVENTATIVE MAINTENANCE

All Items
Heat Source
•
Ensure that the filter at water inlet is clean. Note that this is an 'O' ring seal and does not need to be
excessively tightened. Just make sure O ring is engaged inside machined surface in brass housing. Isolate
heater before removing filter for cleaning and inspection.
•
Ensure all Rinnai Water Heaters are operating. Ensure power is available to units if not operating. Can
check GPO.
•
Many new jobs or ones where the gas supply has been modified need to purge the gas supply lines as they
are full of air. Purge should be carried in accordance with AS/NZS 5601, Appendix 'D'.
•
In jobs that operate for long hours and/or in dusty or smoky environments the combustion air fan may
become dirty. This may be indicated by Fault 10. Contact Rinnai Service.
•
Internal heaters may operate for a short period of time and then stop. This can be caused by Rinnai Co-
axial flueing not being pushed together properly and exhaust gases are re-entering the inlet air. Check flue
connections. Also inspect flue terminal for any cause to divert exhaust air back into the inlet air. Ensure flue
is terminated correctly in accordance with AS/NZS 5601.
Your Rinnai Continuous Flow water heaters has a self diagnostic capability. If a fault occurs, an Error Code will
flash on the Digital Monitor. If you have Water Controllers. This assists with diagnosing the fault, and may enable
you to overcome a problem without a service call. Please quote the code displayed when enquiring about service.
ERROR
-
03
10
11
12
14
16
25
32
33
34
52
61
65
71 & 72
LC
In all cases, you may be able to clear the Error Code simply by turning the hot water tap OFF, then ON again. If this does
not clear the Error Code, try pushing the On/Off button OFF, then ON again. If the Error Code still remains, contact Rinnai
for advice.
Rinnai
FAULT
Noticeable reduction in water flow.
Power interruption during Bath fill. (Water will not flow
on power reinstatement)
Air intake or flue blocked.
No ignition / No gas supply.
Flame Failure / Low gas flow.
Remaining Flame Safety Device.
Over Temperature Warning.
Condensate Pipe Blockage
Outgoing Water Temperature Sensor Faulty.
Heat Exchanger Outlet Sensor Faulty.
Combustion Air Temperature Sensor Faulty.
Gas Modulating Valve Faulty.
Combustion Fan Failure.
Water Flow Control Faulty - (Does not stop flow
properly)
Micro-processor Failure.
Scale build-up inside the heat exchanger.
REMEDY
Inlet water filter needs to be cleaned.
Service call.
Turn off all hot water taps. Press On/
Off twice.
Service Call.
Check gas is turned on at water
heater and gas meter or cylinder.
Check gas is turned on at water
heater
Check there are no obstructions to
the flue outlet.
Service Call.
Service Call
Service Call.
Service Call.
Service Call.
Service Call.
Service Call.
Service Call
Service Call.
Service Call.
18 Commercial Manifold Pack OIM