The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Sprinklered equipment 26-008
by bigpapa
12/02/16 04:24 PM
On Delay Relay with Auto Reset
by Potseal
12/01/16 09:59 AM
Wow, that was close!
by jraef
11/28/16 07:06 PM
Earthquake in New Zeeland
by RODALCO
11/27/16 11:25 PM
Calling all Non-US members!! (Non-US only)
by Tjia1981
11/27/16 06:33 AM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 13
HotLine1 9
Texas_Ranger 8
sparkyinak 7
Trumpy 6
Who's Online
1 registered (geoff in UK), 133 Guests and 5 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#6574 - 01/07/02 10:54 AM Aircondition tripping breaker..only on first attempt for the day
trinimom2000 Offline
Junior Member

Registered: 01/07/02
Posts: 1
I would be grateful for any advice anyone can give me about this persistant problem. I installed a 30,000BTU air condition unit some time ago. It is on a 220V circuit. The technician told me that he was putting two 30amp breakers. One right near the aircondtion unit and one on the main panel box for the house. The problem is that anytime I put on the a/c unit it trips one of these breakers. The catch is though that after I reset the breaker and put back on the unit it works fine. I take off the unit again and put it on and it still works fine. However after about a day has passed without the unit bein on, the unit trips a breaker again. It only trips the breaker on the first time I put on the unit for the day. Wierd huh?. Grateful for your advice.

Top
Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#6575 - 01/07/02 11:56 AM Re: Aircondition tripping breaker..only on first attempt for the day
ggardiner Offline
Member

Registered: 10/22/01
Posts: 81
Loc: Calgary, Alberta Canada
You might want to take a look at the fan on the unit it may be sticking after sitting for a while cases the unit to trip the breaker had the same problem a while ago and that's what it turned out to be. Many units are supposed to be service each year and the fan motor may have an oil inlet in it if it drys out this sort of thing happens.

Top
#6576 - 01/07/02 11:57 AM Re: Aircondition tripping breaker..only on first attempt for the day
Redsy Offline
Member

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
Does the same one trip each time?

Top
#6577 - 01/07/02 11:58 AM Re: Aircondition tripping breaker..only on first attempt for the day
ggardiner Offline
Member

Registered: 10/22/01
Posts: 81
Loc: Calgary, Alberta Canada
should of said causes not cases sorry

Top
#6578 - 01/07/02 06:41 PM Re: Aircondition tripping breaker..only on first attempt for the day
sam Offline
Member

Registered: 01/02/01
Posts: 29
try washing the outside coil. it may look clean but you'll probably be surprized .
inside coil should be washed also. the pressures can cause high amp draw and trip the breaker. be sure to cover exposed wires and openings to the compressor and fan motor.

Top



ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals