The insulation used in the blower fan cabinet has fallen off

put a voltage meter across the leads of the draft motor checking to see of the supply voltage is intermittent also. If it is check the wiring for shorts. If none found then change the board.

Hello, a 3 blink pattern indicates a open limit switch. Most of the time a dirty filter, dirty blower wheel, weak blower motor, can cause the limit switch to open.

Hi, not enough detail not enough detail. I have no idea where you are located, but if it is a gas heater/ Ac then maybe the attic space is so hot that the over temperature sensor is turning the unit on in an attempt to cool the system down. If however it is a refrigerant AC unit, I would suggest that the control circuit is faulty, maybe a sticking contact somewhere. good hunting col

http://www.alpinehomeair.com/related/GMS9%20GCS9%20Specs.pdf


Try this web site. if it is to confusing i will find what you want.

If you mean the blower wheel, I wonder how you diagnosed this problem so you were 100% sure the motor is bad. I recommend to make sure of the diagnosis before spending to buy parts.

The blower wheel is shaped like a twin blade. But it's only one wheel.

However, to answer the question; Step one is turn the power off.
Then; Find the blower housing in the lower compartment on an upflow configuration.

• Remove 2 screws on the blower housing, on the upper inside of the blower compartment to slide the blower housing out.
• Disconnect blower motor wiring at the harness and at the control board if connected. You can cut them if you have exact replacement motor and wire nuts.
  
• Slide the housing out, turning it on the side that exposes the motor.
• Remove the 3 mounting screws holding the motor to the housing.
• Loosen the lock nut holding the fan blade (wheel) to motor shaft.
• Slide motor and shaft out and away from the fan blade, as they are connected together and cannot be separated. Use penetrating oil SPARINGLY.
  

Installation is the reverse of the removal instructions.

IMPORTANT. Make sure to leave equal space between both sides of fan blade and housing when re-installing the wheel.

Luck to you. Let me know how that turns out.
Russ
[email protected]

The easies solution is to use 1/2" duct board with the foil side towards the blower. Put it on with a HEAVY coating of spray adhesive on both the duct board and the surface you are mounting it to.

Call around to the wholesalers to find ductboard in your area.

it sounds like the fan control switch is not shuutting off when it cools down look at the fan diff settingson the fan control you may be able to adjust this

Pressure switch is not working, plugged air intake or exhaust pipe, dirty air filter, debris in condensate hoses, debris in pressure switch hose.

The motor will have a horsepower and rpm on it. pull it out and take down to a local parts warehouse they will have a replacement

you could use only 2 wires, R and G terms all you would get is blower fan. so on stat make sure you connect to R and G also. also did it have a fresh air return and you miss hooking up those wires, i have seen that before.