REMEHA Avanta Plus 24s, Installation And Service Manual

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13
4.3 Other problems
Problem or error Possible cause Solution/points to check
A.
No hot water when tap is
turned on
Boiler is not running
Check whether the boiler is switched on
check whether a fuse has blown;
check whether the gas tap is properly open.
Water pressure is too low (less than 1
bar)
Check mains cold water pressure
Economy shower head is letting too little
water through Remove the shower head and clean; fit a new shower
head if necessary
B.
Radiators are not
(properly) hot
Room thermostat is set too low Set room thermostat higher
Radiator valve is not open Open radiator valve (further)
Boiler is not running
Check whether the boiler is switched on
check whether a fuse has blown;
check whether the gas tap is properly open.
System pressure too low Top up central heating;
see par.5.1
C.
Boiler not working
Room thermostat is set too low Set room thermostat higher
Boiler is not running
Check whether the boiler is switched on
check whether a fuse has blown;
check whether the gas tap is properly open.
System pressure is too low Top up central heating,
see par. 5.1
Boiler has a fault
Reset the boiler (using the ‘Reset’ key);
remedy the fault (
see par. 4.1
) or
consult your installer (
see par. 4.2
).
Gas pressure is too low Check gas pressure at boiler and meter
D.
System water pressure is
too low (less than 1 bar)
Insufficient water in central heating sys-
tem
Top up central heating;
see par 5.1
Water leak Consult installer
E.
Major temperature
fluctuations in the DHW
Water supply insufficient Check supply pressure : Open water tap further
F.
Ticking noises from
central heating pipes
Central heating pipes clipped too tightly Loosen clips;
lubricate clips with grease;
enlarge sleeves (in walls and/or floors).
G.
Gurgling noises in cen-
tral heating pipes and/or
radiators
Air in central heating system Bleed central heating and top up system afterwards;
see par.
5.2
H.
Flow noises in
central heating pipes
Water in central heating system
flowing too quickly Consult installer
I.
Serious leak under or
near boiler
Boiler or central heating pipes
are faulty or damaged Consult installer
 Error codes
When contacting your installer, please have details of the error
code on the display, the serial number, year of manufacture
and type of the boiler (see label on base of the boiler).