IDEAL Logic HEAT 12, Installation And Servicing

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Fault Finding
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Ideal Logic Heat -
Installation and Servicing
66 FaULT FINDINg ChaRT MaIN MENU
aLTERNaTINg ‘L’ and ‘1’
gO TO FRaME 67 -
FLOW TEMpERaTURE OVERhEaT LOCKOUT
aLTERNaTINg ‘L’ and ‘2’
aLTERNaTINg ‘L’ and ‘6’
aLTERNaTINg ‘F’ and ‘2’
aLTERNaTINg ‘F’ and ‘3’
aLTERNaTINg ‘F’ and ‘4’
aLTERNaTINg ‘F’ and ‘5’
In order to assist fault finding the boiler has a 7 segment display. The key to the display codes is as follows:
aLTERNaTINg ‘F’ and ‘6’
aLTERNaTINg ‘F’ and ‘7’
aLTERNaTINg ‘F’ and ‘9’
aLTERNaTINg ‘F’ and ‘0’
aLTERNaTINg ‘c’ and ‘0’
gO TO FRaME 68 -
IgNITION LOCKOUT
gO TO FRaME 69 -
FaLsE FLaME LOCKOUT
gO TO FRaME 70 -
FLaME LOss
gO TO FRaME 71 -
FaN FaULT
gO TO FRaME 72 -
FLOW ThERMIsTOR FaULT
gO TO FRaME 73 -
RETURN ThERMIsTOR FaULT
gO TO FRaME 74 -
OUTsIDE sENsOR FaULT
LOW MaINs VOLTagE -
CONTaCT ELECTRICITy pROVIDER
pCB FaULT -
**REpLaCE pCB
BCC NOT FITTED
REsTaRT BOILER
NO Ch
NO DhW
gO TO FRaME 78
gO TO FRaME 79
**
If PCB replaced as a spare ensure that the BCC (boiler chip card - small plastic part) is fitted to the PCB otherwise replace PCB.
aLTERNaTINg ‘L’ and ‘5’
5 REsTaRTs WIThIN 15 MINs -
TURN pOWER OFF aND ON
REsTaRT pROCEDURE - To restart boiler, turn mode knob to restart position and immediately turn knob back to required setting.
aLTERNaTINg ‘c’ and ‘2’
gO TO FRaME 77 -
BCC FaULT (BOILER ChIp CaRD)
Note that production boiler PCBs are factory pre-set to operate for boiler range and output, but when ordering Primary PCB as a
spare, an additional Boiler Chip Card (BCC) MUST also be purchased for your specific boiler range and output.
aLTERNaTINg ‘F’ and ‘a’
gO TO FRaME 75 -
FLOW/RETuRN REVERSED
aLTERNaTINg ‘F’ and ‘d’
gO TO FRaME 76 -
NO WaTER FLOW
NO DIspLay gO TO FRaME 80