Author Topic: HVAC (heating and AC) question  (Read 69541 times)

Offline WayBackMachine

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Re: HVAC (heating and AC) question
« Reply #360 on: August 18, 2023, 03:13:14 PM »
My AC broke again the 5th time in one year HELP!
1) fuse on control board blew.
2) transformer blew
3) water pan switch blew
4) transformer blew
5) I blew, its still broken what should be the next step?
transformer didn't blow this time, fuse is still intact, light on board reads a red 0, filter is clean, thermostat has new batteries, fuses in fuse box are all up.

Offline WayBackMachine

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Re: HVAC (heating and AC) question
« Reply #361 on: August 18, 2023, 03:16:24 PM »

Offline WayBackMachine

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Re: HVAC (heating and AC) question
« Reply #362 on: August 18, 2023, 04:01:20 PM »
My AC broke again the 5th time in one year HELP!
1) fuse on control board blew.
2) transformer blew
3) water pan switch blew
4) transformer blew
5) I blew, its still broken what should be the next step?
transformer didn't blow this time, fuse is still intact, light on board reads a red 0, filter is clean, thermostat has new batteries, fuses in fuse box are all up.
Chat GPT what do you suggest?

I'm not an HVAC technician, but I can offer some general suggestions on what you might consider doing next to address the recurring issues with your AC system:

Professional HVAC Technician: It's clear that your AC system has been experiencing multiple issues, and attempting to diagnose and fix these issues yourself could be risky and potentially worsen the situation. It's strongly recommended to consult with a professional HVAC technician. They have the expertise to accurately diagnose the problem and provide the appropriate solutions.

System Inspection: Since you've experienced multiple issues within a short period, it might be a good idea to have a comprehensive inspection of your entire AC system. There could be an underlying issue that's causing these frequent breakdowns. A technician can identify any common factors among the failures.

Electrical Wiring Check: Even though the fuse and transformer issues seem to be ruled out this time, it's important to check the electrical wiring throughout the system. Loose or damaged wires could lead to intermittent problems.

Control Board: Since the control board's light is showing a red 0, it might indicate an error code. Refer to your AC unit's manual to understand the meaning of this error code, or consult with a technician. It's possible that this error code could provide insight into the current issue.

Condensate Drain Line: Check the condensate drain line to ensure it's not clogged. A clogged drain line can lead to water buildup and system malfunctions.

Refrigerant Levels: Low refrigerant levels can also lead to cooling problems. If the refrigerant levels are consistently low, there might be a refrigerant leak that needs to be addressed.

Component Wear and Tear: AC components can wear out over time, especially if the system is older or has been subject to repeated issues. It's possible that worn-out components are contributing to the recurring problems.

Consider Replacement: If your AC system is old or if the cost of repairs is consistently high, you might want to consider the possibility of replacing the system with a new, more reliable one. This could save you money in the long run by avoiding frequent repair costs.

Remember, the best course of action is to consult a professional HVAC technician who can properly diagnose the issue and provide appropriate solutions. They will have the knowledge and experience to get your AC system up and running smoothly again.

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Offline yos9694

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Re: HVAC (heating and AC) question
« Reply #364 on: August 19, 2023, 09:21:49 PM »
My AC broke again the 5th time in one year HELP!
1) fuse on control board blew.
2) transformer blew
3) water pan switch blew
4) transformer blew
5) I blew, its still broken what should be the next step?
transformer didn't blow this time, fuse is still intact, light on board reads a red 0, filter is clean, thermostat has new batteries, fuses in fuse box are all up.

I am not an expert. But I suggest you replace the capacitor. It may be the cause of the problem- or it may not - and its an easy cheap replacement.

Offline WayBackMachine

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Re: HVAC (heating and AC) question
« Reply #365 on: August 19, 2023, 10:09:40 PM »

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Re: HVAC (heating and AC) question
« Reply #366 on: August 19, 2023, 11:54:18 PM »
I am not an expert. But I suggest you replace the capacitor. It may be the cause of the problem- or it may not - and its an easy cheap replacement.
In this case it would be highly unlikely to be the capacitor causing the problem.
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Re: HVAC (heating and AC) question
« Reply #367 on: August 20, 2023, 12:04:51 AM »
My AC broke again the 5th time in one year HELP!
1) fuse on control board blew.
2) transformer blew
3) water pan switch blew
4) transformer blew
5) I blew, its still broken what should be the next step?
transformer didn't blow this time, fuse is still intact, light on board reads a red 0, filter is clean, thermostat has new batteries, fuses in fuse box are all up.
Who replaced the fuse on the control board? Is it the right fuse?
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Offline WayBackMachine

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Re: HVAC (heating and AC) question
« Reply #368 on: August 20, 2023, 02:33:50 AM »
Who replaced the fuse on the control board? Is it the right fuse?
transformer is before the fuse, blew twice
fuse was replaced by an hvac guy
last two times i called the company that installed it B&R heating and cooling
an electrician told me to call jcp&l the electric company to inspect the wiring coming into the house

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Re: HVAC (heating and AC) question
« Reply #369 on: August 20, 2023, 02:38:16 AM »
it all started last year when a storm passed the area and the electricity went out for a couple of minutes

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Re: HVAC (heating and AC) question
« Reply #370 on: August 20, 2023, 03:17:34 AM »

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Re: HVAC (heating and AC) question
« Reply #371 on: August 20, 2023, 08:10:59 AM »

Scratch the cap as that is not the issue.
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Re: HVAC (heating and AC) question
« Reply #372 on: August 20, 2023, 08:25:00 AM »
Scratch the cap as that is not the issue.
so what is,
and please explain how you got to that conclusion

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Re: HVAC (heating and AC) question
« Reply #373 on: August 20, 2023, 08:33:31 AM »
so what is,
and please explain how you got to that conclusion
The cap is in a different circuit/unit.
Transformers hardly ever fail, and you had two of them fail.
Drawing to much current can cause a transformer to fail but the fuse is there to protect that.
Can spikes in line voltage cause a transformer to fail, yes. I would suspect if that was the case you would have other issue with appliances/electronics in the house.

ETA: What type of unit are we talking about?
« Last Edit: August 20, 2023, 08:38:43 AM by CountValentine »
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Re: HVAC (heating and AC) question
« Reply #374 on: August 20, 2023, 09:16:48 AM »
my led chandelier also went bust last summer, transformer/driver blew up with bursts of fire and ind tripped the breaker
i never fixed it

The cap is in a different circuit/unit.
Transformers hardly ever fail, and you had two of them fail.
Drawing to much current can cause a transformer to fail but the fuse is there to protect that.
Can spikes in line voltage cause a transformer to fail, yes. I would suspect if that was the case you would have other issue with appliances/electronics in the house.

ETA: What type of unit are we talking about?
i have three such units but only one is giving me issues
but they are on separate meters
« Last Edit: August 20, 2023, 09:31:11 AM by WayBackMachine »

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Re: HVAC (heating and AC) question
« Reply #375 on: August 20, 2023, 10:43:40 AM »
i have three such units but only one is giving me issues
but they are on separate meters

Are these the outside AC compressor units and the problem is the control board/transformer in the furnace?
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Offline yos9694

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Re: HVAC (heating and AC) question
« Reply #376 on: August 20, 2023, 11:06:21 AM »
it all started last year when a storm passed the area and the electricity went out for a couple of minutes

Do yourself a simple favor. At least test the cap with a multi meter. Power surges often knock them out. That in addition to the other electrical problems make it more likely your fuses are being blown by overloads.
« Last Edit: August 20, 2023, 11:18:21 AM by yos9694 »

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Re: HVAC (heating and AC) question
« Reply #377 on: August 20, 2023, 11:13:47 AM »
And the more CV insists its not the cap, the more likely that it is. Only he could be so violently against trying something easy without offering any help ideas of his own and stringing you along with questioning
Totally uncalled for.

Let me understand this correctly. You believe replacing the cap in the outside AC compressor can somehow fix the problem with the control board/transformer inside?
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Offline yos9694

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Re: HVAC (heating and AC) question
« Reply #378 on: August 20, 2023, 11:17:41 AM »
Totally uncalled for.

Let me understand this correctly. You believe replacing the cap in the outside AC compressor can somehow fix the problem with the control board/transformer inside?

I think if the cap is not delivering the correct voltage it can burn out other electronics in the system. Its harmless and free to check it with a multimeter.

Sorry for the over the top remark

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Re: HVAC (heating and AC) question
« Reply #379 on: August 20, 2023, 11:26:20 AM »
I think if the cap is not delivering the correct voltage it can burn out other electronics in the system. Its harmless and free to check it with a multimeter.
It is 100% impossible for the cap in the outside AC unit to cause any issue with the fuse/transformer inside.

The reason I asked the question about the type of unit this is because it seems it is standard AC compressor outside and furnace inside. If this is the case the cap can be ruled out 100% as a cause for the problems.

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