Ferroli XIGNAL CE Technical Information Installation And Service Instructions page 35

ER 5 FAULT
AIR PRESS SWITCH
ER 6 BROKEN
PROTECT SENSOR
ER 7 FAULT
C.H. SENSOR
ER 8 FAULT
S.H.W. SENSOR
ER 9 FAULT
PROTECT SENSOR
ER 10 WATER PESSURE
TOO LOW
ER 11 WATER PRESSURE
TOO HIGH
ER 12 FAULT
MODUREG
ER 14 BAD WATER
CIRCULATION
ER 15 BROKEN
ABOVE LIMIT
Defective pressure switch or clogged tubes
Check connections
Replace pressure switch or clean tubes
Water temperature too high
Defective heating temperature sensor
Check connections or replace the sensor
Defective hot water temperature sensor
Check connections or replace the sensor
Defective temperature limit sensor
Check connections or replace the sensor
Plumbing system empty
Check plumbing system
Expansion tank defective
Check expansion tank
Leaks from supply cock
Check plumbing system
Expansion tank defective
Check expansion tank
The plant has been filled when cold at
an excessively high pressure
Reset the plant to an adequate pressure
Defective gas valve modulator
Check the coil
No power to Modureg
Check electrical connection
Blocked circulation pump
Release circulator by removing the plug,
then turn the shaft with a screwdriver
Check or replace the condenser or circulator
The water temperature has reached
the safety limit.
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