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Rinnai 11 B Series Heat Pump OIM - Issue 1
NO WATER FROM THE TAP
Restriction in the hot tap or failure of the cold
water supply to the water heater
Check for water ow at the other taps and that the cold
water isolation valve is fully open.
HIGH ELECTRICITY BILLS
Excessive hot water consumption See entry under the heading ‘Insufcient or no hot water’
High Electricity Taris The electricity tariff will determine the running costs of
the system. It is important the end user is aware of the
applicable tariffs. Contact your electricity supplier to
conrm what these tariffs are.
Higher Element Usage In extremely cold conditions the element may be
operating more than normal.
WATER FLOW FLUCTUATIONS
One or more hot taps opened at the same time More than one or two hot taps in use at the same time
may cause a decrease in the hot water ow from the
taps.
Is there more than one or two hot taps open, or are
appliances such as a dishwasher or washing machine,
in use at the same time?
Ensure only one or two hot taps are on at one time.
WATER HAMMER
Hot and cold water plumbing in the premises Have a plumber check clipping of hot and cold water
pipe work and install a pressure limiting valve and water
hammer arrestor as required.
HEAT PUMP ICES UP
Defrosting function The heat pump has a built in hot bypass defrosting
function which may operate and remove any ice.
HEAT PUMP ERROR INDICATOR*
Error
code
Error Description Possible Causes
E05 High pressure protection High pressure switch is broken/Connection is loose
E09 Communication fault Signal wire connection loose/There is Strong magnetic
eld/PCB is broken/Signal wire is broken
E12 Exhaust temperature too high Lack of refrigerant/system leak
E14 Tank temperature sensor fault Sensor fault/Connection is loose
E16 Coil temperature sensor fault Sensor fault/Connection is loose
E18 Exhaust temperature sensor fault Sensor fault/Connection is loose
E21 Ambient temperature sensor fault Sensor fault/Connection is loose
E29 Suction temperature sensor fault Sensor fault/Connection is loose
*If an error code is displayed on the control unit please contact Rinnai Customer Care Immediately�
SAVE A SERVICE CALL
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