CONDENSER FAN MOTOR TEMP

[marqx]

is there a rule of thumb or average temp. acondeser fan motor shell should be if its in normal working condition on a 90 degree f. day in the shade?

[amickracing]

I'd say if it's warmer than you can comfortably hold your hand on for a few seconds, it's too warm. If you grab it and say ouch before you touch it... it's too warm lol

[dave82323]

look at the data plate and it will tell you the celcius rating usually, convert to farenheit and you got your answer.

[jim baughman]

Originally posted by marqx
is there a rule of thumb or average temp. acondeser fan motor shell should be if its in normal working condition on a 90 degree f. day in the shade?

It will be warmer than you want to hold on to. If you have any doubts about it, check the amp draw to make sure it is running in specs. Check end play on the shaft also.

[marqx]

thankyou, amps were right, no play in shaft, original complaint-a/c quits cooling-ambient air coming out of vents,she shut it down then back on later and cools fine -when i arrived she had it off-watched operation 30-40 min.temp drops good,freon good,both coils clean,comp.amps good-cond. motor very hot but amps and shaft ok- oiled and told custumer if it happans again to look outside to see if fan is turning,have not heard back in a month but was still on my mind.

[jim baughman]

I had one a while back just the same way....3 other companies sent techs out to fix it under home warranty. None could find anything wrong and it worked fine while they were there. I got sent out and figured everyone had checked the obvious....you dont spend much time on home warranty jobs or you go broke...so I started with the compressor and after pulling the cover, found the wire terminals were fine but the stud out of the compressor was loose. They probably looked at the terminals but didnt grab them. It had arched many times and was basically welded for some operation and then got hot and broke connection. Had to replace the compressor. Just a thought to check next time.

[turtle]

This is Turtle

I have had calles like this and it was a wonder why it just stopped out of the blue and started back working. I checked them thing up one side and down the other. I would find nothing wrong. I can remember 4 that i had and 3 of them was the low ambiant controller points would stick and leave fan off and let the compressor go out on high temp. then when the customer would turn it off for severial hour and the Low Ambiant Controller would trip and up hang and when it try to start again it would connect and let the fan come on. 2 of these was ants and one was bad points on the low ambiant controller. the reason i have so many Low ambiant controllers on stuff is all the Telephone company's HVAC equipment will have low ambiant controller for they need cooling in freezing weather. Every little sub station will have 2 completely different hvac system to heat and cool with and nothing of one touches the other.

The Forth one was kids from down the block with the gamg would play a game of sticking a fishing rod in the fan to try to stop the blade and hear this loud buzzzing noise. when the Scroll compressor would go to 500+ psi it would buzzz real bad and they would let it go. If they kicked it out on high temp. they would all go for it was no fun anymore. this would happen every day between 3:00 P.M. and 3:30 P.M. when the gang would come home from school. how they got cought was when a neighbor seen them doing this and call the lady with the problem and then called me.

so if the ants don't get you the kids down the block will. If you see no cause think about the red headed kid down the block with a fighing rod stuck in the fan. Kids have fun games now a days.

TURTLE

[marqx]

I was under the impresion that the nameplate temp was the ambient temp conditions motor was designed to run in, not the actual temp the shell should be under design conditions.( thanks for the other tips also, sounds like they could save me alot of headaches later)