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Fault Code Table
Warranty Conditions
The boiler is guaranteed against manufacturing defects for a period of two years from the date of
commissioning. However the guarantee is subject to proof of commissioning by a qualified gas installer.
This is usually in the form of a commissioning certificate. In continental Europe the warranty only covers
the supply of parts and telephone advice.
The warranty does NOT cover the following issues:
1. Frost damage to any part of the boiler containing water during freezing conditions.
2. The removal of sludge or hard water scale due to lack of antifreeze/inhibitor
3. Damage to electronics caused by a defective electrical supply.
4. Damage or failure caused by insect contamination or blocked water filters.
5. Loss of pressure within the heating system not caused directly by the boiler.
6. Incorrect operation of the boiler caused by defective outlets such as thermostatic mixers or mono
block mixer taps.
7. Damage caused by unauthorised modifications to the boiler from original specifications.
Spare Part Availability
Information regarding spare parts can be found by contacting Morco’s sales office or website (details
below).
MORCO PRODUCTS LTD
Morco House, Riverview Road, Beverley, East Yorkshire HU17 0LD
Tel: +44 (0) 1482 325456 FAX: +44 (0)44 1482 212869 EMAIL: sales@morcoproducts.co.uk
WEBSITE: www.morcoproducts.co.uk
Alternating
Display Code
on Boiler
Auto
reset
Description
Problem
Solution
F
7
Yes
Low mains
voltage
Supply Voltage is too low
Contact electricity provider
L
5
N/A
5 boiler resets in a
5 minute period
Repeated problems with auto
reset faults
Investigate individual faults
F
1
No
Low system
pressure
Leak from sealed CH system
Identify leak and fix
L
1
No
Boiler overheat
Pump stuck or divertor motor
issue
Free pump or reset motor
F
2
Yes
Flame loss during
operation
Air in gas supply after bottle
change
Purge air from gas system
L
2
No
Ignition failure
No power from PCB or faulty
spark generator
re-instate power supply or replace spark
generator
L
2
No
Ignition failure
Condensate pipe or trap frozen
or blocked/ No Gas
Defrost or unblock condensate pipe or trap
Check Gas Supply
F
3
No
Fan fault
Failed fan
Replace fan
F
4
Yes
Flow thermistor
issue
incorrect/no signal
Test thermistor for signal and replace if faulty
F
5
Yes
Return thermistor
issue
incorrect/no signal
Test thermistor for signal and replace if faulty
8


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