Specifications

TM024 Premier Loline Solar Drain back Service Instructions REV: A
D.O.I: 12/12/2007
This document is stored and maintained electronically by Service. All printed copies not bearing this statement in RED are deemed “uncontrolled”
30
Fault Finding Chart 1.4
Electrical Insulation Test
What is
the model
number?
591 (electric boosted)
596 (gas boosted)
590 (solar pre-heater)
Is the
reading below 1
mega-ohm?
NO
YES
YES
Disconnect the element wiring
from the thermostat and
megger between each element
wire and earth.
Replace element.
Replace thermostat.
Check for pinched or
damaged wiring touching
the water heater chassis.
NO
Disconnect remaining wiring
from the thermostat and
megger between each terminal
on the thermostat and earth.
Disconnect wiring to gas
booster and megger between
each terminal on the gas
booster and earth.
Is the
reading below 1
mega-ohm?
Is the
reading below 1
mega-ohm?
Megger between each wire to
the solar circuit on the terminal
block and earth.
Disconnect wiring to electric
booster at the terminal block
and megger between each wire
to the electric booster and earth.
Is the
reading below 1
mega-ohm?
Conduct fault finding on
the gas booster. Refer to
appropriate Service
Instructions for model.
YES
Is the
reading below 0.66
mega-ohm?
NO
Check for pinched or
damaged wiring touching
the water heater chassis.
590 & 596 Models
Check for pinched or
damaged wiring on the 3
pin plug and lead.
YES
Is the
rear of the control
board shorting on
the backing
plate?
Disconnect the pump wiring at
the pump and megger between
each pump terminal and earth.
Replace pump.
NO
Readjust control board on
insulated stand-offs.
YES
NO
YES
NO
Is the
reading below 1
mega-ohm?
YES
591 Models
Household power supply
to appliance faulty.
1.4
NO