Reply.
Professional Member
Did a call out on a Carrier 58MVP variable speed 2 stage furnace. Blower motor not coming on during call for heat or fan only. code 44 comes up.
Not sure how to determine if motor is bad or the main board. Hoping to get some feedback.
Thanks
Professional Member*
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Last edited by HVAC_Marc; 02-07-2019 at 05:59 PM.
Nest is POO!!
Global Moderator
I'm guessing this was for a different thread?Originally Posted by HVAC_Marc
Instead of learning the tricks of the trade, learn the trade.
Global Moderator
Does a Code 12 pop up shortly after a Code 44?
I emailed you some info that may help you troubleshoot this issue.
Side note - get that post count to 15 and apply for PRO membership so we can discuss theses issues in more detail inside the "LOCKED" Pro forums.
Instead of learning the tricks of the trade, learn the trade.
Professional Member*
you're correct. I never opened this post until now. When I posted it was on the "chirp thread" and after I posted it was immediately closed. must be some forum glitch.
edit- (I couldnt figure out where my post went)
Professional Member
Yes. Got a code 12 and 44. All I could note is using my voltage detector wand the black wire going to the motor is hot all the time. Other wires not showing anything when jumping R to G.
Global Moderator
Did you get my email?
Instead of learning the tricks of the trade, learn the trade.
Former Site Administrator- Now Retired
It was no glitch. The OP asked for his account to be removed and thread closed.
Professional Member*
Fair enough. I can only report what happened when I posted.
Former Site Administrator- Now Retired
What makes you think we need you to report anything?? We don't need your help in moderating this site as I've told you time after time.
Thanks but stop it now.
Professional Member*
I didnt "report" it via the triangle. I made a reply to rundawg on what happened to me when he questioned my post (see post #3 and I deleted my post #2). That was my "report" in this thread. Again, I apologize for replying to a thread that you were closing as I posted. I had no idea it would post here and I had no idea that you were closing the other thread.
I totally understand the moderating thing. I've completely stopped pressing the triangle unless it's a blatant crossing of the rules. This is "your" site, your rules, and it will be as you wish.
Professional Member*
As yooooouuuuu wiiiissssshhhhh.
I love that movie.
I will now shut my pie hole.
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Professional Member
I’ve had decent luck using the universal zebra ecm motor tester to tell if the problem is the board or the motor module.
God Speed, Jim. We'll miss you - 2-26-23
Pull the module and look if the thermistor is burned out.
Professional Member
Yes thank you for the email. Much appreciated!
Just got off the phone with my supplier. The ECM motor is almost $900! The board is almost $500! I need to make an accurate diagnosis on whether its the board, the motor or both.
Professional Member
I second this, the zebra tester was pretty inexpensive and will at least rule out the control.
Professional Member*
Jumper the second stage wire with 24v if it doesnt come on test the boards output for 24v . if board has 24v for second stage then motor is bad
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Professional Member
YOU CAN BY A SPECIAL TOOL FOR THAT.
Regular Guest
Read the manual. All infinity furnaces have a diagnostic sheet in the back of it. It will have you check specific pins for dc volts coming of the board.
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