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RIN0421 023335 Rev. E Jun 2013
Owner’s Manual
80L to 400L Electric Storage Water Heaters
Version B: Update to new logo and reduce size of label
Troubleshooting
Water Discharge from the PTR
Valve
Pressure & Temperature Relief Valve
(PTR)
It is normal for the PTR to allow a small
quantity of water to escape during the
heating cycle. The amount of discharge
will depend on hot water usage.
Continuous trickle (PTR)
This is most likely due to a build up of
foreign matter. In this case try gently
raising the easing lever on the Pressure
& Temperature Relief Valve for a few
seconds then release gently. This may
dislodge a small particle of foreign
matter and rectify the fault.
Steady flow (PTR) – more than 20L per
day
This may be caused by excessive water
supply pressure, a faulty Pressure &
Temperature Relief Valve or a faulty
thermostat. Turn off the electricity supply
and contact Rinnai.
High Electricity Bills
• Is the Pressure & Temperature
Relief Valve discharging too much
water?
• Is one outlet (such as the shower)
using more hot water than you
think? See “No Hot Water”.
• Is there a leaking hot water pipe
or dripping hot water tap? A small
leak can waste a large quantity of
hot water.
• Replace faulty tap washers and
have your plumber rectify any
leaking pipework.
