TM005 Rheem Solar Hiline Service Instructions REV D
D.O.I 20/02/2009
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14
Fault Finding (Chart 1)
1
Is the electric booster
connected to an off
peak tariff?
Is 240V present at
terminal block?
TEST 1
Is a switch to control
the booster installed in
the house?
Possible failure of the
off peak relay or missed
signal from energy
supplier. Continue with
diagnosis to confirm
booster circuit is
operational.
Is the booster switch
turned on?
Turn booster on.
YES
NO
NO
YES
NO
Is the fuse blown at
the switchboard?
NO
Isolate power and continue
with diagnosis procedure.
YES
Booster switch or wiring
from switchboard to
terminal block open circuit.
Repair wiring or replace
switch.
Is 240V present at
terminal block?
TEST 1
NO
Conduct an electrical
insulation test as per
procedure on page 16.
YES
Has the weather been
conducive for good
solar gain?
2
YES
YES
1.2
Reading below
1 mega-ohm
1.1
Reading above
1 mega-ohm
Advise customer that
boosting will be required
during periods of low solar
contribution.
NO
YES
NO
