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Mend Combi Boiler No Heat Radiators Cold

how to fix my combi?

hot water ok turn heating on pump going but no heat all rads air out water topped back up so arrow is in the green sill no heat boiler 16 years old allways been looked after only had work done on it once it its life about to move house in a few weeks can not beleve its let me down now help

jon
September 2012
Heating, Home Heating SystemsCombi Boiler No Heat Radiators Cold
what make , clean water pressure switch that will stop boiler fire on ,if that's OK than divert valve,some make has micro switch

ltd
September 2012

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Combi Boiler No Heat - Troubleshooting & Fixes