Excessive Hot Water From Taps - OSO SOLARCYL Installation Manual

Insufficient hot water
when boiler is used
Remove hot water dip pipe and
fit seperate expansion vessel.
(see page 15)
NO
Connect wiring as
per instructions
Wiring Fault
Seek advice
from
electrician
If in doubt at any stage you must consult a qualified electrician
OSO FAULT FINDING GUIDE
Hot water from taps is cold
If problem still persists
contact a competent
engineer / plumber

Excessive Hot water from taps

Is Thermostat wired
as per layouts for
"S" or "Y" plan
installation
YES
Is 2-port motorised
valve closing when
cylinder reaches
temperature?
YES
Low solar gain
Is the
programmer set to
central heating or
not switched on?
YES
Check and
set to hot
water
programme.
Thermostat/Solar
controller set too high
NO
Check cylinder
Thermostat is switching
on & off with
programmer & hot water
on
YES
NO
Check wiring
on cylinder
Thermostat
-14-
Activate boiler
Is the boiler
working?
NO
YES
Is the Has
NO
motorised cylinder
valve thermal
operating cut-out
correctly? operated?
YES YES
Check wiring Check and
or plumbing reset
connections button
YES
Reduce
Temperature setting
Faulty
Thermostat
NO
replace
NO