Filter
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Rinnai Corporation RHFE-750ETR 11
Care and Maintenance
Filters
This appliance has two filters which are behind the
louvers on either side of the heater. The louvers are
hinged to allow access to the filters.
Dirty filters reduce the air flow and the appliance’s
Maintenance
Repairs should be performed by a qualified service
technician. The appliance should be inspected
annually by a qualified service agency.
More frequent cleaning may be required due to
excessive lint from carpeting, bedding material, etc. It
is imperative that control compartments, burners, and
circulating air passage ways of the appliance be kept
clean.
When the appliance has cooled off, gain access by
removing the front panel, combustion chamber glass
panel, and ceramic logs. Refer to the Parts List and
the sections Cleaning Combustion Chamber Glass
and Final Assembly for disassembly / assembly
instructions. Vacuum, use pressurized air, and then
vacuum again to remove dust from the burners,
compartments, and convection fan.
Any filter or guard removed for servicing the
appliance must be replaced prior to operating the
appliance.
The vent should be inspected annually for blockages
or damage.
Motors are permanently lubricated and do not need
periodic lubrication. Keep fan and motor free of dust
and dirt by cleaning annually.
Verify proper operation after servicing.
Visual Inspection of Flame
Check that the pilot and burner flames are operating
normally.
If flames appear either very short or very long and
streaky or are producing smoke or soot deposits then
there may be a problem with the appliance or gas
supply.
The appliance should not be used if you suspect
there is a problem. Call a qualified service technician
to inspect the appliance.
The burners are designed to produce two rows of
yellow flame but not smoke or soot.
NORMAL
ABNORMAL
ability to produce heat. The filters should be cleaned
once a week during the heating season. If the filters
become blocked the blockage indicator will flash red.
The filters should be cleaned whenever the blockage
indicator flashes red. If not cleaned the appliance
may turn off and display fault code 14 (overheat) on
the control panel display.
To clean the filters, the appliance should be OFF and
cool. Open the louver by pushing inward and
releasing. Slide the filter upwards until the bottom tab
clears the lower retaining slot. Then slide the filter
down and away to remove. Clean the filter using a
soft dry cloth or vacuum.