I've always been a "do it yourself'er" but I've been beaten by my A/C and I need professional help. 2 weeks ago I noticed I wasn't getting cold air. Inside unit/fan was running, thermostat showed it was trying to cool, but I wasn't getting cold air. Checked outside and unit wasn't running. Turned it off for a night and when I kicked it on the next day, it ran like a champ. Of course, after several hours, it did it again.
I called out a repair man when it was running and he checked my pressures and coolant and everything was fine. He thought it was my fan motor overheating, but honestly wasn't sure. I pulled out the motor and it had no drag, would spin freely and made no sounds while powered. (I thought dying fan motors sounded like they were dying.) So, I began troubleshooting everything else...
I took my run capacitor to an A/C shop and had it checked. It was okay.
I replaced my contactor because it looked rough. I installed it and it ran fine for a day, then same symptoms so that's not it.
I added a Pow-r-pak boost because this must mean my thermistor going out and it was due to my pressures not being balanced, right? STILL no luck. Same thing. Ran fine for 4 hrs then died again.
The only other thing I think it could be is my compressor time delay relay. Is that possible? Or, could it really be my fan motor even though it doesn't feel very hot and it's not making noises?
When you check and find out door unit not running you need to check if the two wires coming from inside (thermostat then down to heater then out side) has the voltage to turn the system on. For most outdoor units this would be 24 volts ac. Then any time delays and safty controls can be checked. If you do not have power then trace back to heater then thermostat.
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If you are not an HVAC certified tech I would recommend you call one, because you can electrocute yourself if you don't know what you're doing. Otherwise, I would do a troubleshooting on the pump itself to see if electricity is going in, and coming out of it. Check all electrical components, etc. But it's very hard to diagnose things like this without being in front of the unit. It's always best to hire a professional for this dangerous types of work.
Vehicle air conditioners are always a mystery and a process of elimination. Check all the fuses for the AC unit. Both in the cab and under the hood. Turn the dash control to AC while the truck is running and look under the hood to see if the compressor clutch is engaging. If it's not, it could be that power is not getting to it or the clutch has failed. Also, if you can't direct the vents in the cab like they should be, the damper door may be stuck in side divert-er box or the dash controls need to be replaced.There are a host of other things that could be causing the problem, but what I given you so far is the place to start.
Hope this helps you to start troubleshooting and solving the problem. Please let me know. Thanks.
Upvote the help. And take advantage of fixya expert assistance live. For a price, expert works with you while you work on water heater or any do-it-yourself project. Fixya is always less expensive than a service call.
For a competent expert to be able to answer your problem, you will need to givea specific make and model of your unit. Also include as much as possible about what you have already tried to do toresolve the problem along with exactly what is not working or what the unit isnot doing that it is supposed to do. This will help us experts to be able to give you the correct advise the firsttime, without having to guess so much as to what is actually happening.
of adding a fireplace or wood stove to your home? If
installation and maintenance is absolutely critical
the fire stays inside your freestanding fireplace or
stove and doesn't venture outside of it.
If your manufactured home
a fireplace or wood stove, it's a good idea to go
these safety guidelines to confirm that it was
If you plan to install a fireplace or wood stove,
safety guidelines carefully.
First, don't try to tackle
yourself. While installation manuals usually provide
instructions necessary for a manufactured home owner
a wood-burning fireplace or wood stove, the consequences of
a mistake are so disastrous, it's a task best left
It's a good idea to first
your insurance company for their guidelines before
these items. Your insurance policy may not cover
a fireplace or wood stove was not professionally
Plus, the manufacturer's warranty on the fireplace
stove may not apply unless the unit is installed by a
most likely the heating speed relay on your furnaces IFC board has failed.Unfortunately the entire IFC must be replaced to repair this. you are in need of a professional service tech. The same control handles the blower fan, ignition system and safeties. Not a do-it-yourself repair as wires in the wrong place could cost you a house.