IDEAL Logic Code Combi ES26 Installation And Servicing page 56

82 aLTERNa TINg ' c' aND '2' - BCC F aULT (BOILER ChIp CaRD)
Is the correct BCC for the boiler securely inserted into the
slot at the rear right of the PCB?
(identified by the label on the BCC)
Replace the BCC with a new BCC (that is correct for the
boiler). After switching power on and 'c0' being shown,
press reset. Is 'c2' still shown?
REsET pROCEDURE - To reset boiler, turn mode knob to reset position and immediately turn knob back to required setting.
83 NO Ch OpERa TION BUT hW WORKs OK
Is the mode knob in the Winter position?
Are the Timer and the Room Thermostat switched
on?
Are the Radiator Valves Open?
Is there 230Vac at (A)?
Replace the Divertor Valve
56
FaULT FINDINg
YES
YES
YES
YES
YES
Securely insert the correct BCC for the boiler
NO
into the PCB and after switching power on and
'c0' being shown, reset boiler.
Note. Ensure the correct orientation of BCC by
placing "TOP" side up.
YES
Replace PCB
NO
Move the mode knob to the Winter position
NO
Switch the Timer and Room Thermostat On
NO
Open the Radiator Valves
There is no Voltage from the Timer/Room Stat. This
NO
is not boiler fault. Ensure Voltage is supplied to
boiler by rectifying external wiring.
Ideal Logic Code Combi ES -
a
Installation and Servicing