Question about Amana Heating & Cooling

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Hi I'm Steve... Amana SSE80 Furnace Model GUIC070CA40 MFG # P1229003F Furnace works but air handler blower stops after 5 1/2 minutes, burner continues till high-T limiter triggered (See details)

Problem: All steps for furnace work fine except 5 1/2 minutes (almost like clockwork) after air handler starts up fine, runs fine, runs smooth and quiet it stops and the furnace inductor blower/heat continue until it trips the high temp limit and shuts all down. After verifying two or three times after cools down I started killing heater before the furnace high heat limiter trips for subsequent tests after a new filter was installed and I verified no obstructions and a free spinning blower. When we first ran the furnace we did get a rubber/electric burning smell not like the gas/dust burn we are accustomed to at the start of seasonal use and the smell comes back some just before shut down. The back of the motor is warm and the body is quite hot to the touch. If I had to guess I'd say bearings or other going in motor and thermal protection for motor kicking in. Your thoughts? Other: Last summer the A/C condenser had issues while I was out of the country. I had a tech come by and verified a bad controller. I ordered a refurbished controller and walked son through how to change over skype. That fixed that problem but may have issues on the furnace side though I can't imagine what that might be based on the consistent failure sequence and timing each time. Your thoughts? Recap of what works: -- Calls for heat fine, furnace inductor blower engages as it should, -- Ignitor fires and burns blue and clean non stop until high heat limit reached, -- Air handler blower starts smooth and runs smooth but dies after +/- 5.5 minutes. -- Replaced air filter, old one not that dirty. Blower free spins by hand, no rub, no noise I have two larger Amana units as well and had to replace one. I scavenged the blower unit with mounted controller and the controller should still be good. The blower motor looks like the same frame type but is a 3/4HP where the SSE 80 is a 1/2HP.

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  • 567 Answers

Motor might be bad and shutting down on thermal protection. Is this a direct drive or belt driven ? .if belt driven try adjusting the belt tension or just replaced the motor

Posted on Dec 11, 2018

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: fi have a older furnace that operates like this. main burners will come on then the blower turns on and furnace continues to heat untill it shuts down on the high limit. there is no blockage on the co

Maybe there is a blockage in the air conditioning coil above the furnace? This happens when people have pets, or dont use filters. Single phase 120-240 volt motors won't run backwards if you reverse the wiring that's dc or three phase, you have to check the rotation of the wheel, the right rotation is usually marked on the blower case. Some motors will allow you to change the rotation but you have to check the wiring diagram. Also use new capacitors when they go bad the motor can run backward. God luck

Posted on Dec 21, 2011

  • 520 Answers

SOURCE: Furnace shuts down before heat

has any one checked your thermostat. as soon as the furnace shuts down then turn up the stat and see if it starts right up. i would think the stat function should have been checked also.

Posted on Feb 12, 2011

heatman101
  • 43501 Answers

SOURCE: Main blower fan is not starting on my York Diamond

Hi,
Check to see if the blower motor is actually getting power to it...You will have to check for power on the heating speed terminal... and the neutral wires....you should have 120v across those two wires....
If you have power then the motor is bad...if no power then the heating relay went bad on the circuit board and you will have to replace the circuit board...

That is a common problem as those relays are often to light and wear out...

Just realize that without an electrical meter to trace things through you are really just grabbing at possibilities and not really able to correctly diagnose your problem...

heatman101

Posted on Dec 08, 2010

  • 5 Answers

SOURCE: Ruud Silhouette II Gas Furnace, purges, lights

Flame sensor needs to be cleaned. turn off the furnace power switch or breaker. pull the flame sensor located in the burner runner section of the furnace. It will be easy to locate because it has 1 wire running to it. pull the screw being very careful not to harm anything else. get the sensor out. inspect it for cleanliness. clean the sensor with light grade sand paper gently. re-install the sensor plug the wire back on. restart your furnace and this should fix the problem.
CookHVACR

Posted on Nov 19, 2010

Testimonial: "thanks cookhvacr, took 15 minutes and it seems to be back to normal operation."

  • 69 Answers

SOURCE: Burners shut down at set temp but fan continues lowering temp

the reason he told you not to cycle the power is because some where there is a flashing light that he can decode and tell him where to start looking for the problem. Call him next it happens and don't touch the power or the stat until he gets to see the unit.

Posted on Aug 03, 2009

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