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 Phil Your Own Question
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

Installed a VG7SD-090-35 AIR TEMP horizontally, discharge

Customer Question

Installed a VG7SD-090-35 AIR TEMP horizontally, discharge right, runs OK if burner door not in place, except yellow light flickers. With door in place it short cycles, 2 minutes on 2 minutes off. Bypassed all limit switches, not the problem. Bypassed .9 pressure switch on the inducer it worked with door on , replaced switch, not a fix. Prefer to discuss this by phone Lavern Ransom 1533 Kensington Janesville Wi.(###) ###-####or cell(###) ###-####
Submitted: 1 year ago.
Category: HVAC
Expert:  Phil replied 1 year ago.


The company charges extra for phone calls, that is optional, or we can continue here if you do not accept the phone call offer. Meantime I will do some research on your Air Temp unit.

Expert:  Phil replied 1 year ago.

Meantime tell me how long your combustion air intake and plastic exhaust vents are, and how many 90 degree elbows are in them.

We can go from there.

Related HVAC Questions