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I have a new goodman propane furnace when it calls for heat…

Customer Question
I have a new goodman...
I have a new goodman propane furnace when it calls for heat the burners will kick on then it lights then after the cycle it fires the burners will work for about 5 min.then burners will stop blower runs for about 1 min or so then it relights continues for about 5 min and keeps going through these stages till appropriate temp has came up and calls for stop in heating. furnace is in its own compartment with a supply of freash air to the room where do I need to start looking to fix this problem?
Submitted: 11 months ago.Category: HVAC
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Answered in 23 minutes by:
10/15/2017
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 11 months ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,178
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified

Hello,

sorry for the delay...what is the btu input..or model number and I can check duct size requirements...it sounds like you are tripping on limit

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Customer reply replied 11 months ago
100 thousand btu
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 11 months ago

Thank you....is this a metal vent pipe furnace or a plastic pvc pipe vent?

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HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 11 months ago

I wanted to see btu for heat across the exchanger...

Based on 100,000 btu.....you will need to have 320 sq inches of return duct.

this means like a 10x32......12x 28..etc...anything to get to a minimum of 320 sq "

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HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 11 months ago

does this system also have ac?

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HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 11 months ago

are you all set?

I have not seen a reply yet

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