Ariston ST 100 ProTech Instrucciones de instalación, mantenimiento y uso - Página 29
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También para Ariston ST 100 ProTech: Manual de instrucciones de instalación y uso (24 páginas), Manual del usuario (16 páginas), Instrucciones de instalación, mantenimiento y funcionamiento (34 páginas)
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6.
FAu LT FINd ING
FAult
no Hot wAter
Flow
reDuceD Flow
rAte
wAter FroM
Hot tAps
is colD
DiscHArGe FroM
pressure/
teMperAture
relieF vAlve
DiscHArGe FroM
expAnsion
vAlve
wAter HAMMer
possiBle cAuses
1) Mains cold water
Check and open Isolating
supply shut off
and/or stop valve. Check
2) Line strainer
Turn off mains water supply,
blocked
remove line strainer and
clean
3) Cold Water
Check direction of flow
Combination valve
fitted incorrectly
correct position if necessary
1) Low mains water
Check pressure, consult
pressure
Local Water Authority if
necessary
2) Line strainer
Turn off mains water supply,
partially blocked
remove line strainer and
clean
3) Size of service
Increase to size stated on
pipe too small
page 9
1) Direct immersion
Check immersion heater,
heater is not
switch on if necessary
switched on
2) Direct thermal
Test thermostat operation
cut-out has
and wiring, if faulty,
operated
correct/replace. Reset cut-out
3) Boiler programmer
Check switch on domestic
set to central
hot water if necessary
heating only
(Indirect models)
4) Boiler is not
Check boiler operation, if
functioning
fault suspected consult
(Indirect models)
manufacturer's instructions
5) Indirect thermal
Test thermostat operation
cut-out has
and wiring, if faulty,
operated
correct/replace. Reset
cut-out
6) Motorised valve
Check wiring and operation of
jammed or not
motorised valve correct/
wired correctly
replace as necessary
(Indirect models)
1) Pressure above 7
Shut down boiler or immersion
bar, failure of
heater. Check pressure
pressure reducing
reducing valve and thermal
valve. Temperature
controls. Replace if
above 90ºC failure
necessary
of thermal control
1) Continually.
Check pressure from valve.
Pressure reducing
Replace if over 3.5 bar
valve faulty
2) When heater is heating.
Check charge of vessel. Re-
Faulty expansion
charge vessel to 3.5 bar or match
vessel or lost charge
incoming mains pressure
replace if necessary
3) Back feed of high mains
Service / replace mixer
pressure via mixer.
1) Expansion Vessel fitted
Ensure vessel is fitted horizontally or
vertically.
connection at top.
2) Pipework not secure
Clip pipework
3) Jumpers on taps loose
Replace tap jumpers
4) Flexible hose connecting
Remove flexible hose and hard pipe.
expansion vessel
reMeDy
water, Local Water Authority
arrows on valve, refit in
29