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Ask Andrew Smith Your Own Question
Andrew Smith
Andrew Smith, HVAC Technician
Category: HVAC
Satisfied Customers: 3670
Experience:  Heating and Controls engineer
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No hot water the digital display read F.04

Customer Question

no hot water the digital display read F.04
Submitted: 2 years ago.
Category: HVAC
Expert:  Andrew Smith replied 2 years ago.
Do you have the full model details?
Customer: replied 2 years ago.
I think that the control setting box has broken down and I will order a replacement. I think that the boiler is not receiving the instructions from the control panel and this is the problem.
Expert:  Andrew Smith replied 2 years ago.
F4 is usually an ignition problem, but I need to know the full model details?