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Recent Junction Box questions

I have a fire suppression system for a restaurant hood with

I have a fire suppression system for a restaurant hood with the following:-makeup air-exhaust-light under hood-2 switches:1 for light, 1 for fans-1 microswitch, 120v, 21 ampsAll must shut off when fire suppression is activated. Exhaust must stay on. Control circuit must be dedicated. All are single phase, 120 volts.I would like to achieve this with contactors. How would you go about this?

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Mike G.

Master Electrician

Vocational, Technical or Trade Scho

9,384 satisfied customers
Wiring in my new hvac compressor. It is a 13 seer, 2.5 ton

Wiring in my new hvac compressor. It is a 13 seer, 2.5 ton unit. They say it needs a 25 amp circuit. I bought a 30 amp fused disconnect box that I'll mount to the outside of my house near the compressor. I'm using 10/2 exterior wire with a ground. The wire is about 1/2 " wide. What type of conduit do I need to use between the disconnect box and the unit? Do I need to use water tight, or just the flex type. I live in Minnesota.

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Certified Journeyperson Electrician

58 satisfied customers
This AM we turned on the hall light and the hall light came

Hi,This AM we turned on the hall light and the hall light came on but also the bathroom fan. This is definitely not normal but both are on the same breaker.I turned off the breaker.How can I find the problem?I looked in the attic and did not see any problems there. Just a visual inspection of what I could see but much of the house wire is under insulation.I looked in the switch for the bathroom fan. A 3 switch configuration in a one gang switch box and all looks right there as well.Any suggestions?Thank youNeil C.

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Kevin

Supervising Electrician

Diploma

4,200 satisfied customers
Thanks I have a 220 range wire it has a big black wire a

thanks I have a 220 range wire it has a big black wire a silver stranded wire a white wire and another big black wire I want to make it 110 and put it in a junction box can I do this?JA: I'll do all I can to help. How long have you been dealing with this?Customer: not long just got the houseJA: Do you plan on doing the work yourself?Customer: yes I am very familiar with wiring I just have neser encountered thisJA: How old is the system in question? And have you consulted an electrician yet?Customer: the system is probably from the 60s and no I haven'tJA: Anything else we should know to help you best?Customer: no I don't think so

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Kevin

Supervising Electrician

Diploma

4,200 satisfied customers
I have to replace bulbs in various fixtures to often, the

I have to replace bulbs in various fixtures to often, the fixtures check out fine, and Ihave installed a whole house surge protector, I am suspecting a faulty main ground.

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ProGrade

Electrical Contractor

832 satisfied customers
Singlewide mobile home, master bedroom has no power as well

singlewide mobile home, master bedroom has no power as well as master bath lights, living room front side only has no power?JA: What's the brand and model number of your appliance? How old is it?Customer: mobile home is a 1992JA: What are all the symptoms of the problem (error codes, flashing lights, etc.)?Customer: nothingJA: What happened just before this problem started? What troubleshooting have you tried?Customer: woke up and power was not working on said areas, I tried changing out light switch in master bathroom as switch was worn. (changed after problem started)JA: Anything else you want the electrician to know before I connect you?Customer: not sure so I will say no

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Kevin

Supervising Electrician

Diploma

4,200 satisfied customers
Power to two of my outlets is spliced through the fan switch

Power to two of my outlets is spliced through the fan switch in my bathroom. The outlets do not have power. All connections appear to be made. How should I trouble shoot?

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Kevin

Supervising Electrician

Diploma

4,200 satisfied customers
I replaced a ceiling light and when I took the old one down

I replaced a ceiling light and when I took the old one down I forgot to make sure I knew where the wires went. Oops. I know better. Anyway in the junction box there are three cables coming in. Each one has a white and a black wire and the third has a red wire. The old fixture was on a dimmer switch. I can get the light to work but the switch won't turn it off or on. I have been driving myself crazy. Where do all those wires go???JA: I'll do all I can to help. How long have you been dealing with this?Customer: Let's just say longer than a few hours!JA: Do you plan on doing the work yourself?Customer: Yes. I just replaced another light yesterday and no problemJA: Anything else we should know to help you best?Customer: Since the light works I'm assuming I'm connecting the red wire incorrectly

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Need some info on 220 power to older double oven...

Need some info on 220 power to older double oven...JA: What's the make and model of your oven? And can you guesstimate how old it is?Customer: Thwrmador 20+ years. Oven is t really the question. Some wires pulled loose in the junction box. The bare ground wire from the oven isn't connected to anything. The other three wires look OK. I don't see a bare wire coming up the conduit from the electrical panelJA: Do you plan on doing the work yourself?Customer: YesJA: Anything else we should know to help you best?Customer: No. Just need to know what to do with the bare ground wire from the oven. Doesn't seem to have been connected. But maybe it broke when the oven was pulled out and the other part fell back into the conduit? Doesn't seem likely

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Mike G.

Master Electrician

Vocational, Technical or Trade Scho

9,384 satisfied customers
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