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How are you? goodman gmh81405dncd Is my model number. I am…

Customer Question
Hello How are you...

Hello How are you? goodman gmh81405dncd Is my model number

Contractor's Assistant: I'll do all I can to help. How long have you been dealing with this?

I am not getting the maximum airflow to my ducts. My house is not getting very warm

Contractor's Assistant: Do you plan on doing the work yourself?

Yes

Contractor's Assistant: Anything else we should know to help you best?

I would like to make sure my wires are connected to the right blower speeds

Submitted: 8 months ago.Category: HVAC
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Answered in 1 hour by:
12/15/2017
HVAC Technician: Gaztech, HVAC Technician replied 8 months ago
Gaztech
Gaztech, HVAC Technician
Category: HVAC
Satisfied Customers: 937
Experience: Owner at Gaztech
Verified

Hi I amCustomer a independent technician, I will assist you with your issue.

Don't forget to rate the 5 star rating AT THE TOP OF PAGE if we are done. this will credit me for assisting you.

CHECK TO SEE IF FURNACE IS SET TO 1ST STAGE HEATING OR TWO STAGE HEATING

Dip switchs are on the control board bottom part of furnace.

Set to 2 stage, read explanation ;

The normal operational sequence in sequence is as follows:

R and W thermostat contacts close, initiating a call for heat.

Integrated control module performs safety circuit checks.

Induced draft blower is energized for 15 second prepurge

period causing pressure switch contacts to close.

Igniter warm up begins after 15 second prepurge expires.

Low and high-stage gas valves open at end of igniter warm

up period, delivering gas to burners and establishing flame.

High-stage gas valve closes after five seconds; low-stage

gas valve remains open.

Integrated control module monitors flame presence. Gas

valve will remain open only if flame is detected.

Circulator blower is energized on low heat speed following

a fixed thirty second blower on delay. Electronic air cleaner

terminals are energized with circulator blower.

Furnace is now operating in low-stage heating mode.

Furnace operates; integrated control module monitors

safety circuits continuously.

If low-stage delay period expires, control will shift operation

from low-stage heating mode operation to high-stage

heating mode operation. Control will energize circulator

blower high heat speed and high stage gas valve

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HVAC Technician: Gaztech, HVAC Technician replied 8 months ago
Ask Your Own HVAC Question
HVAC Technician: Gaztech, HVAC Technician replied 8 months ago
I noticed question is still opened, please dont forget to rate the 5 star rating if we are done. Sincerely
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Category: HVAC
Satisfied Customers: 937
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