Rheem W2W Series Owner's Manual And Installation Instructions page 18


Incorrect Phase Rotation
The phase fail relay will open circuit if the heat pump has been wired with
incorrect phase rotation or if a phase has failed. Both red and green LEDs on
the relay will be illuminated if all phases are available and phase rotation is
correct.

Heat pump circulator has failed
If the heat pump circulator has failed, the heat pump will not operate. Phone
your nearest Rheem Service Department or Accredited Service Agent (or
Service Centre in NZ) to arrange for an inspection.
HIGH ELECTRICITY BILLS
With the installation of your new water sourced heat pump water heater,
maximum electrical energy savings can be achieved. Should you at any time,
feel your energy account is too high, we suggest you check the following points:

Is the relief valve in the storage tanks running excessively?

Are outlets (especially the showers)
using more hot water than you think?
"Not Enough Hot Water"
(Refer to
page 16).

Is there a leaking hot water pipe,
dripping hot water tap, etc? Even a
small leak will waste a surprising
quantity of hot water and energy.
Replace faulty tap washers, and
have your plumber rectify any
leaking pipe work.

Consider recent changes to your hot
water usage pattern and check if
there has been any increase in tariffs
since your previous account.

The heat pump water heater operates at its most efficient at higher cold side
water temperatures. Prolonged periods of activation of freeze protection will
decrease the efficiency of the system and increase running costs.
IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU
NEED ASSISTANCE,
DEPARTMENT OR ACCREDITED SERVICE AGENT.
on
CALL YOUR
18
NEAREST RHEEM SERVICE