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 Matthew Your Own Question
Matthew
Matthew, HVAC Technician
Category: HVAC
Satisfied Customers: 2014
Experience:  14 years experience in the HVAC field of service, installation, Manual J & D calculations
6927568
Type Your HVAC Question Here...
Matthew is online now
A new question is answered every 9 seconds

My Ducane furnace smart valve will give 4 flashes which indicates

Resolved Question:

My Ducane furnace smart valve will give 4 flashes which indicates an open limit switch or roll out switch but none of them are open and sometimes the valve will work fine.
Submitted: 6 years ago.
Category: HVAC
Expert:  Matthew replied 6 years ago.

Matthew :

Hello, My name is XXXXX XXXXX I will do my best to help you today.

Matthew :

If the limit fault is flashing and you jump all the limits out and it still flashes then you have a bad smart valve. These valves are notorious for losing their connection with the plugs and the only cure is a new valve. Most of the time when it is in this fault you can wiggle and press on the plugs and get it to finally catch.

Matthew and 3 other HVAC Specialists are ready to help you

Related HVAC Questions