need help

[fairydust]

hi we have a heatline c24 combi, we have got hot water in kitchen but none in bathroom run tap its hot for few seconds then its cold can anyone help thanks

 

[stevetheplumber]

hi we have a heatline c24 combi, we have got hot water in kitchen but none in bathroom run tap its hot for few seconds then its cold can anyone help thanks

usually a tap problem either not enough flow to start the boiler or to much flow and the water cant heat up try running the tap slow see if that works other possibility is diaphram in boiler is nearing the end of its usefull life but this tends to be on all taps