They switched it to backup settings when there was air in the system and because they did not wait for the thermal store to fill itself it took out the heating element and the pumps x3 burnt out as there was no water in them.
They also short circuited the wiring from the boiler which took...
Gledhill have breakdown insurance for £90 a year.
Your heating installer may have killed the boilermate2000 by not removing 2 of the large fuse's I think they are 25 or 32amp located left hand side 1/4 way down.
If they are not pulled while refilling the thermal store and its turned to...
