Samsung RC090MHXEA Installation Manual page 58

Immersion Heater
Are immersion
heaters switched
on
NO
Switched on
immersion heaters
NO
Connect wiring as per
instructions
Wiring Fault Seek advice
from electrician
EHS mono_RC＊＊＊MHXGA_IM_E_34411A(3).indd 57
Hot water from taps is cold
Has immersion
heater thermal cut-
YES
out operated?
YES
Check and reset
button
If problem still persists contact a
competent engineer
Excessive Hot water from taps
Is Thermostat wired as per
layouts for "S" or "Y" plan
installation
YES
Is 2-port motorized valve
closing when cylinder reaches
temperature?
YES
If in doubt at any stage you must consult a qualified technician
Indirect Heating
Is the programmer
set to central
heating or not
switched on
YES
Check and set Is the
to hot water motorized
programme. valve
operating
correctly?
YES
Check wiring
or plumbing
connections
Cylinder Thermostat set
YES
to high
NO
Check cylinder thermostat
is switching on & off with
programmer & hot water on
YES
NO
Check wiring on cylinder
thermostat
Is the boiler
working
YES
Has cylinder
thermal cut-
out operated?
YES
NO
Check and
reset button
Reduce Temperature
setting
Faulty thermostat
NO
replace
57
2012-11-26 오후 3:02:06