DISPLAY CODE
ON THE BOILER
DESCRIPTION
The boiler is in standby mode awaiting either a central heating call or hot water
demand.
The boiler has a call for central heating / hot water but the appliance has reached the
desired temperature set on the boiler.
The boiler is operating for central heating / hot water.
The boiler is operating in frost mode.
NO CENTRAL HEATING
Check the mains switch (fused
spur) is turned on and ensure
mode control knob (B) (Control
Panels: P.39) is in the
ON position
Check the programmer is in
an “ON” position and the room
thermostat is turned up
Does the boiler operate and
provide central heating?
Check the time settings on the
programmer are as you require
and adjust if necessary
See boiler “Operation Modes”
and “Fault Codes” section. If “0”
is displayed then contact a Gas
Safe Registered Engineer or in
IE a Registered Gas Installer
(RGII)
NO
YES
OPERATIONS MODE.
27
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