Rinnai MP2200 - Fault Finding; Manifold Pack Preventative Maintenance

Rinnai 18 Commercial Manifold Pack OIM
MANIFOLD PACK PREVENTATIVE MAINTENANCE
All Items
Heat Source
•
Ensure that the lter 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 lter 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 modied 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 ueing not being pushed together properly and exhaust gases are re-entering the inlet air. Check ue
connections. Also inspect ue terminal for any cause to divert exhaust air back into the inlet air. Ensure ue
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
ash 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 FAULT REMEDY
- Noticeable reduction in water ow. Inlet water lter needs to be cleaned.
Service call.
03 Power interruption during Bath ll. (Water will not ow
on power reinstatement)
Turn o󰀨 all hot water taps. Press On/
O󰀨 twice.
10 Air intake or ue blocked. Service Call.
11 No ignition / No gas supply. Check gas is turned on at water
heater and gas meter or cylinder.
12 Flame Failure / Low gas ow. Check gas is turned on at water
heater
14 Remaining Flame Safety Device. Check there are no obstructions to
the ue outlet.
16 Over Temperature Warning. Service Call.
25 Condensate Pipe Blockage Service Call
32 Outgoing Water Temperature Sensor Faulty. Service Call.
33 Heat Exchanger Outlet Sensor Faulty. Service Call.
34 Combustion Air Temperature Sensor Faulty. Service Call.
52 Gas Modulating Valve Faulty. Service Call.
61 Combustion Fan Failure. Service Call.
65 Water Flow Control Faulty - (Does not stop ow
properly)
Service Call
71 & 72 Micro-processor Failure. Service Call.
LC Scale build-up inside the heat exchanger. Service Call.
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/O󰀨 button OFF, then ON again. If the Error Code still remains, contact Rinnai
for advice.
FAULT FINDING