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SECTION 1 - USERS INSTRUCTIONS
POINTS FOR THE BOILER USER
Note. In line with our current warranty policy we would ask that you check through the Troubleshooting guide to identify any problems
external to the boiler prior to requesting a service engineers visit. Should the problem be found to be other than with the appliance we
reserve the right to levy a charge for the visit, or for any pre-arranged visit where access is not gained by the engineer.
YES
YES
NO HOT WATER
Check the mains switch (fused
spur) is turned on and ensure
switch mode control knob (A) is
in the summer or winter position
Is water coming out of the hot
water tap when turned on?
NO CENTRAL HEATING
Check the mains switch (fused
spur) is turned on and ensure
switch mode control knob (A) is
in the winter position
Does the boiler operate and
provide central heating?
Check the time settings on the
programmer are as you require
and adjust if necessary
Check the timer is in an “ON”
position and the room thermostat
is turned up
NO HOT WATER OR
CENTRAL HEATING
Check the fused spur is turned
on and ensure switch mode
control knob (A) is in the winter
position
See boiler “Operation Modes”
and “Fault Codes” section
Does the boiler have a display
showing on the front control
panel?
See boiler “Fault Codes”
section. If ‘0’ is displayed then
contact Morco if your appliance
is under warranty or a Gas
Safe Registered Engineer, or in
othercountriesaqualiedand
competent Gas Installer, if out of
warranty.
YES
NO
Contact a Gas Safe Registered
Engineer, or in other countries
aqualiedandcompetentGas
Installer.
NO
See boiler “Operation Modes” and
“Fault Codes” section. If “0” is
displayed then contact a Gas Safe
Registered Engineer, or in other
countriesaqualiedandcompetent
Gas Installer.
NO
Contact a Gas Safe Registered
Engineer, or in other countries
aqualiedandcompetentGas
Installer.
TROUBLESHOOTING
DISPLAY CODE ON 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 but the appliance has reached the desired
temperature set on the boiler.
The boiler has a call for hot water but the appliance has reached the desired temperature set on
the boiler.
The boiler is operating in central heating mode.
The boiler is operating in pre heat mode.
The water in the cental heating circuit is less than 5ºC. If heating is switched on, this display
code will change to “c”.
The boiler is operating in hot water mode.
OPERATION MODES
Note. These letters are permanently displayed while in that mode.
7


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