BOILER dead ? Do a Short Circuit Test, I show you how, its easy! 

"Mr Combi Central Heating Fault Finding" book has all you need for diagnosing most faults in boilers and systems.
Easy to use flow charts see pages 8 - 11 Short Circuit Test see pages 14 and 22 to find which part is blowing fuses, easy!
P C B’s do NOT use old discontinued recon’s, get the latest version do a better job for more money.
save it as a spare to lend whilst you wait for a new one.
It's very important the sequence is followed.
L & N = over 100Ω (if lower CALL tech. support) from our APP F.22 do NOT move on!
For more info: please use the link below
Our APPs are all one price £4.99 no vat
www.mrcombi.com/apps/
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