Bryant 355MAV Furnace And A/C Blower Not Starting - HVAC - Page 3 - DIY Chatroom Home Improvement Forum


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Old 08-07-2012, 10:43 AM   #31
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Bryant 355MAV furnace and A/C blower not starting


I also have an 11 year old 355MAV with blower issues.
After the blower stopped working it flashed both 44 and 41 codes.
Tech replaced the motor module and the unit ramped up and started working but only at low speed, still flashing 44 code.
Tech says the hi speed motor winding is bad and that we need to replace the entire motor $1600
HELP!?!?
Thanks in adanvce

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Old 02-01-2014, 01:03 PM   #32
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Bryant 355MAV furnace and A/C blower not starting


Quote:
Originally Posted by rajar2 View Post
Similar problem to another Bryant 355MAV owner.
I hope someone can send me the Bryant check out procedures for a troubleshooting a blower motor that does not start.

"Code 41 is the blower motor failed a test and is outside it’s speed range by 10 percent.. It’s got 25 steps.?" Can anybody email me these procedures?
Both my furnace and A/C begin to go through their initial start-up cycles and completes everything OK, gas comes on and lights fine up to when the main blower motor should come on, but it does not start to turn at all - never. At this point the furnace shuts down. Similar results when I start the A/C.
I have the Installation manual and have checked the error message from performing the Component test. Inducer motor starts on Low speed, then Hi-speed, then hot surface ignitor lights up the gas and is on for 20 seconds, then it dies. The blower does not start its low, then high speed cycles. The Fault code is #41 - I get 4 flashes on Green LED followed by 1 on Yellow LED. This sequence keeps repeating. FU1 fuse on the panel is OK and am still looking for FU2. Any ideas?


I had the same problem and was determined to fix it myslf after the $1300 estimate I got to replace my blower motor. It in fact was not the actual motor, but the thermistor inside the black hub cap attached to the motor. I ordered the thermistor for $5.15 from Digi-Key, part #495-2123-ND, it is a little larger than the original, but same specs as the old one. It took me a couple of hours for dis-assembly and re-assembly, but well worth the $1100+ in savings!!! Thanks for all the help from the forum!!!!!!!!!

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Last edited by 1HandyMatt; 02-01-2014 at 01:10 PM. Reason: typo
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