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 BillyHvac Your Own Question
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22003
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Type Your HVAC Question Here...
BillyHvac is online now
A new question is answered every 9 seconds

I have honeywell smart gas valve.... does anyone know what

This answer was rated:

I have honeywell smart gas valve....
does anyone know what solid green light means?

Is it solid or a gentle pulse that never goes out?...



Customer: replied 6 years ago.

no it is solid....the codes say should flash once twice etc or have a heartbeat whatever the hell that is....


no the green light is solid always on it is a model sv9541q I think on a comfortmaker furnace

There is no code for a true solid...


They are all definitive blinks except for normal operation which is bright,dim,bright, never goes out...just "heart beats" between dim and bright.


See page 17 here -


Customer: replied 6 years ago.

I have the same print out already....

but it is a solid green ...not fading at all....I have power through the circuit board and obviously to the smart valve....but nothing


So not to discuss solid green light....but I assume the furnace is inactive at the moment and you are troubleshooting?.....and if so, does inducer fan start?

Customer: replied 6 years ago.

no furnace does not work

we jumped power to the fan inducer and it will run but furnace does not then kick on

I had my heating guy over and of course honeywells cust . service and

the supply house both closed...



Ok....dont k now why it isnt in the tech customer manual. but solid light means failed communication...the valve of course has a circuit board in it and it is not registering any input. Looks like a new gas valve.
BillyHvac and other HVAC Specialists are ready to help you
Customer: replied 6 years ago.

thank you


that was my guess


I wish you luck...



Related HVAC Questions