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Mend Grant 90 MK11 Boiler Heating Lockout

my grant mk11 combi boiler starts to fire but then locks out?

my grant 90 mk11 oil fired boiler attempts to fire there is an initial response and then ignition fails. There is fuel to the system and power any suggestions.

Dennis Grace
February 2013
GrantGrant 90 MK11Heating, Home Heating SystemsBoiler Heating Lockout
the photo cell prob needs to be wiped clean

keymatic
February 2013

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Grant 90 MK11 Boiler Fails to Ignite - Help