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 Jerry Your Own Question
Jerry
Jerry, HVAC Technician
Category: HVAC
Satisfied Customers: 422
Experience:  Epa universal certification, hearth products specialized.
34748161
Type Your HVAC Question Here...
Jerry is online now

I have a Mexico HE18 condensing boiler and would like to know

Customer Question

I have a Mexico HE18 condensing boiler and would like to know if i can do anything externally to stop the unit going onto fault L9 each time the boiler has been on central heating mode for more than 3 hours
Submitted: 3 years ago.
Category: HVAC
Expert:  Andrew Smith replied 3 years ago.
It sounds like an overheat fault, can you confirm what sort of temperature the radiators get to?

Related HVAC Questions