How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Mark Henley Your Own Question
Mark Henley
Mark Henley, Journeyman Technician
Category: HVAC
Satisfied Customers: 3217
Experience:  UA Journeyman Pipefitter , HVAC, Refrigeration, DDC controls. 26 years.Commercial & residential
10307865
Type Your HVAC Question Here...
Mark Henley is online now
A new question is answered every 9 seconds

I have a ferroli 701 combi boiler but it wont fire up when

Customer Question

I have a ferroli 701 combi boiler but it won't fire up when I run the hot water. The flow meter is working and the sensor (42) is OK. LED's 1, 2, 4 and 6 light up but when I turn the water off LED 2 & 6 go out and the red 5 lights up for a few minutes then goes out. Is the problem the PCB?
Submitted: 7 years ago.
Category: HVAC
Expert:  Mark Henley replied 7 years ago.

Hi,

 

Do you still need assistance ?

 

Thanks

 

Mark

Customer: replied 7 years ago.
yes please. It doesn't fire up if I try the central heating aswell. It fired up if I tapped the casing of where thw pcb is but now it seems to have given up.
Expert:  Mark Henley replied 7 years ago.

Hi,

 

This does sound like a PCB problem, unless you find a loose wire connection there is no reason for those symptoms.

 

Thanks

 

Mark

Customer: replied 7 years ago.
It is not the PCB, I have changed it and still no joy.