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Plumberpro
Plumberpro, Home Appliance Technician
Category: Appliance
Satisfied Customers: 634
Experience:  Heating and hot water heating appliances experienced
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I have a ferroli Optimax HE Plus 31C Combi Boiler. 2 days ago

Customer Question

I have a ferroli Optimax HE Plus 31C Combi Boiler. 2 days ago we lost all heating and hot water due to low pressure - this was increased to around 1.5 bar and all was working fine until this morning. Now we have a Fault F40 - HIGH pressure!! I have bled a radiator to reduce to around 1 bar, but still we have the F40 fault. What can I do?
Submitted: 1 year ago.
Category: Appliance
Expert:  Plumberpro replied 1 year ago.
Hi , reset the. Boiler. Turn off the power to it for 2 mins then back on.There is a reason for pressure fluctuations