Page 21
SERVICING AND MAINTENANCE
FAULT FINDING
FAULT - No Hot Water (Direct)
FAULT - No Hot Water (Indirect)
Switch on
Re-set
Replace element
START
Is power on to elements?
Is control temperature
set at 60ºC - 65ºC?
Has high limit tripped?
Check wiring links
continuity and Re-set
END
YES
YES
YES
NO
NO
NO
Switch on
Set programmer
Re-set, check wiring &
plumbing is correct
Re-set
Is all wiring to the
controls ok?
Replace thermostat
Re-wire
START
Is boiler on?
Is hot water programmer
in ‘on’ position?
Is zone valve in
correct position?
Is control temperature
set at 60ºC - 65ºC?
Has high limit cut out?
Re-set
END
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
