1
2
LED CODE FAULT/EFFECT
REASON
1
Overheated appliance
Water temperature greater than 105 °C
2
Differential check faulty/Flame for 15 seconds
Zero check faulty DHW or CH
3
No gas or lockout flame signal/Lockout after 5 ignition attempts Low gas pressure. No flame signal on ignition, or loss of signal during operation
4
Flue gas sensor
Flue gas temperature greater than 95 °C
5
Defective sensor or thermal fuse
Defective flow, return, DHW or flue sensor or open circuit thermal fuse.
6
Defective gas valve/Flame continues after demand ends 5 sec flame signal after burner is switched off
7
Defective fan
Missing or Erroneous RPM signal
A
PCB error
Internal error
Activate BCC (if fitted)
New BCC (if required)
Safety system failure
Failure of internal self checking system
E
BCC error (if fitted)
Incorrect /missing BCC
O
Water flow failure/Flame for a short period only
Sensor temperature differential incorrect
P
Power supply error
Low mains voltage
DHW cold
Defective DHW thermister or open circuit
(No display) No light indication
Defective power supply
NOTE:
FAULT CODES 1 TO 4 MAY BE RESET BY FOLLOWING THE PROCEDURE IN SECTION 5.5 OF THE
INSTALLATION MANUAL, HOWEVER IF ANY OTHER FAULT CODE IS SHOWING PLEASE CONTACT YOUR INSTALLER OR
HALSTEAD BOILERS SERVICE HELPLINE TEL: 01926 834834
Содержание ACE HE 30
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