Grant Combi MK2 no hot water

Hi,

I’ve got a Grant combi boiler outdoor model 90 MK2. Recently it started to give colder and colder hot water, but today the water was simply cold, not even luke. I also realized that last days the “hot” water pressure started to drop down. I should add that the heating system is working fine. Can someone help, can I repair it myself?

Jamie

Hi Jamie,
There are several things that may be faulty, it can be microswitch or heat exchanger or even diverter, also bledding the system may help. If you don’t have much experience with oil boilers repair I would call a boiler specialist. He will come and diagnose your boiler very fast, most probably repairing it the same day.