Largest circut breaker allowed on a residential heat pump
We have an older heat pump that wasn't running. Also have a ServiceOne contract to service the unit. Service One installed some sort of a boast device to help the compressor start but it continually blew tripped the circut breaker. The continued to increase the size of the circut breaker and I believe it is up to 50 AMPs now. The home is in Phoenix Az Do you know if this is safe? If it continues to trip, I assume they will continue to resize the circuit breaker until it stops. I'm somewhat concerned with this becoming a fire hazzard.
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Re: Largest circut breaker allowed on a residential heat...
Sounds like the breaker is doing it's job. Stopping an over amping condition. You need to find out what the breaker is feeding power to. If it is the outdoor unit or the indoor unit. Also, the wire used has to be sized to the breaker otherwise, it will burn inside the walls and start a fire! Both the indoor and outdoor units should have tags or lables stating what the required amount of power is required. Better not let them do anything else untill you get more info. Sounds very dangerous to me but, I'm not there seeing what's going on.
Hope this helps!
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Are you sure you have power? Is it 220? if so double check Circut breaker. If it's popped and pops again when you reset, unplug the unit. Try to reset again, If it pops again when you reset, you have major electrical problem call electrician. If it holds, then you have a major appliance problem that is causing the unit to "pop" the circut breaker. If it's a central unit similar diagnostics, but you can't unplug it. So call your Heating service people. It may just be your thermostat if central system, or more.if the Circut Breaker pops.
This could be a heating element issue. it could be a bad element. Disconnect the two leads going to the heating element and then turn the breaker back on. If it will run and not trip the breaker then you have found the problem. On the heater tube there is a silver sticker that will have the information you need to identify what model heater you have and what the kw of the element is. It will either be 4 Kw or 5.5 Kw You may contact us for more information about this or purchase the replacement element at www.uspartscenter.com
Check the breakers, by FULLY turning it off and then back on. What happens, commonly, is the heat side of the 220 breaker trips. If it keeps happening, sometimes you need a new breaker, but DO NOT increase the amp rating of the breaker.
Breakers that trip from time to time, eventually start tripping EARLIER.
Circut breakers trip due to a short circut or an overload. In this case the likely cause is an overload. If your compressor is drawing more amperage than the breaker is designed to allow, the breaker trips for safety. Possible solutions. Try using a different outlet with fewer appliances or tools on that circut. If the outlet you are using is on a circut that also has lighting, appliances etc, each item is drawing amps, the addition of the compressor to the circut is pushing the amp limit over the top. You can also try a heavier duty extension cord. If you are using an extension that is rated too low for the required amperage your breaker will trip. If you are not using an extiension cord you may need to talk to an electrician about adding another circut to service your tool and garage needs.
Another possiblity is that your service is not upgraded enough. If you have a 60amp service for the house you might want to talk to an electrician about upgrading to 100amp or more.
I would suspect you have a problem in the defrost circuit of your heat pump. there are a couple of things you can try. first just run the system on emergency heat and see what happens. you could have a defrost board that is shorting when it kicks into defrost. it sends a signal back to the furnace so it will come on during defrost. if you do not blow a fuse as long as you are running in emergency heat, i would suspect the defrost control board. also you could have a dead short in the wire that runs from the "w" terminal on furnace control board, out to the heat pump. keep in mind that any of the wires could be the cause and i am just tying to give you the most common things. your furnace will still run if you unhook all the low voltage wiring out at the heat pump. if you do this and stop blowing fuses. you know it is something on that wiring. goodl luck.