IDEAL Evomax 30 Installation & Servicing Manual page 59

89 no DISPLAy
Is there 230Vac to the boiler at (E)?
Is the wiring from the boiler terminal block to the main
PCB connected securely?
Is the cable from the main PCB to the user interface PCB
connected securely?
Does the cable from the main PCB to the user interface
PCB have continuity and is un-damaged?
Is the Fuse on the main PCB OK?
Replace the user interface PCB, still no display?
EVOMAX -
Installation & Servicing
fAuLt fInDInG
yes yes
yes yes
yes yes
yes yes
yes yes
no
Supply power to the boiler
no
Connect the wiring from the terminal block
to the main PCB securely
no
Connect the cable from the main PCB to
the user interface PCB securely
no
Replace cable from main PCB to user
interface PCB
no
Check for shorts on Pumps/Diverter Valve/
Fan/Spark Generator/Gas Valve and
replace Fuse
no
Replace main PCB
(E)
59