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 Rick Your Own Question
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 19105
Experience:  40+ yrs. experience as a licensed oil & gas technician.
Type Your HVAC Question Here...
Rick is online now
A new question is answered every 9 seconds

I have a Robertshaw 7100DER-S7C gas valve that is chattering.

Resolved Question:

I have a Robertshaw 7100DER-S7C gas valve that is chattering. What is the proper replacement valve?
Submitted: 6 years ago.
Category: HVAC
Expert:  Rick replied 6 years ago.
HiCustomerbr />
There could be more than one compatible replacement. Here is one
Rick and other HVAC Specialists are ready to help you
Customer: replied 6 years ago.

My only concern is that it appears that the 7100DER-s7c has 1/2" inlet and 1/2" outlet. Do I just bush down the 3/4" outlet on the GSV720072A
Expert:  Rick replied 6 years ago.
You can bush it down to whatever size you need. These valves usually come with several flush steel bushings

Related HVAC Questions