Comfort zone cz230er roar

That would be a warranty issue, but wonder if you are reading set temperature, ambient temperature or 'set back' temperature? Contact the maker.

Comfort Zone Ceiling-Mounted 7500-Watt Fan-Forced ...

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MPN : CZ230ER. Warm up your garage, workshop, warehouse or event space with this powerful Comfort Zone Digital Fan-Forced Heater. Featuring a ceiling-mount ...

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Question edited for full 'make model (what it is)'.
Question moved from 'Watts Electrical Supplies' to Comfort Zone.

Manual

https://manuals.plus/comfort-zone/comfort-zone-cz230er-7500-watt-digital-thermostat

Comfort Zone Ceiling-Mounted 7500-Watt Fan-Forced ...

comfortzoneproducts.com https://www.comfortzoneproducts.com > products > ce...
Featuring a ceiling-mount design, this tough commercial heater boasts a heavy gauge steel body that stands up to daily use in poorly insulated areas where ...

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If your Comfort Zone CZ230ER is not cooling down to the setpoint and shutting off, there could be several potential issues causing this problem. Here are a few things to check:

1. Check the air filter: A dirty or clogged air filter can restrict airflow and cause the unit to overheat. Be sure to clean or replace the air filter as needed.
2. Check the thermostat: If the thermostat is faulty, it may not be accurately sensing the temperature in the room, which can prevent the unit from cycling properly. Try replacing the thermostat to see if that resolves the issue.
3. Check for leaks: If the refrigerant level is low due to a leak, the unit may not be able to cool properly. Have a professional inspect the unit for leaks and repair them as needed.
4. Check the compressor: If the compressor is faulty, it may not be able to properly circulate refrigerant through the system, which can prevent the unit from cooling. A professional will need to diagnose and repair any issues with the compressor.
5. Check the fan motor: If the fan motor is not functioning properly, it can prevent the unit from properly circulating air, which can cause it to overheat and shut off prematurely. Check to see if the fan is running smoothly and replace the motor if necessary.

If you are unsure how to perform any of these checks or repairs, it's best to consult a professional HVAC technician.

I hope this helps

https://www.youtube.com/watch?v=4pXdRX140Ic

Thanks

Is it manual or electronical controls?

Likely a tripped limit switch. Need multi meter to test.

get in a qualified electrician to check the installation and to report if it is a warranty problem

nothing works

The roaring noise is probably the fan blades (looks like a hamster wheel) are worn out as it rotates on the spindle/shaft.

It may be a problem with the 4" exhaust ducting, that connects to the exit part of the fan, has come loose. Theres a damper (kinda like a flapper) at the fan/ducting joint may have broken off and may be sitting sideways in the ducting flapping around inside the duct.

At any rate I highly doubt its wiring. Sounds like its time to pull the fan cover off (turn the power off first via the wall switch or the service panel breaker would be even better) and look at the fan blades. Clean off any dust bunnies, lint, etc. and turn the fan back on. Did the noise stop?

If nothing looks out of place and it still makes noise you'll have to get in the attic and remove the ducting from the fan and see if theres a problem at the connection there. Maybe a squirrel put its bedding in the ducting? It happens.

Could be lots of reasons for the noise but wiring it wrong wouldn't cause roaring. The fan wouldn't work, or worst burn up, if wiring was the issue. The problem is the more than likely the fan blade assy is worn out or something is restricting the air flow in the ducting going to the outside of the house.

Here some toubleshooting:

Problem 1. Fan will not start.
Probable Cause
1. Fuse or circuit breaker blown.
2. Loose power line connections to the fan, or loose wire connections in the switch housing.
3. Reversing switch in neutral position.

Suggested Remedy
1. Check main and branch circuit fuses or circuit breakers.
2. Check line wire connections to fan and switch wire connections in the switch housing.
3. Make sure reversing switch position is all the way to one side.

WARNING: Make sure main power is turned off.

Problem 2. Fan sounds noisy.
Probable Cause
1. Blades not attached to fan.
2. Loose screws in motor housing.
3. Screws securing fan blade flanges to motor hub are loose.
4. Switch housing binding against the blade hub.
5. Wire connectors inside switch housing rattling.
6. Screws holding blades to flanges are loose.

Suggested Remedy
1. Attach blades to fan before operating.
2. Check to make sure all screws in motor housing are snug (not over-tight).
3. Check to make sure the screws which attach the fan flanges to the motor hub are tight.
4. Check to make sure that the switch housing does not bind against the blade hub.
5. Check to make sure wire connectors in switch housing are not rattling against each other or against the interior wall of the witch housing.
6. Tighten screws securely.

WARNING: Make sure main power is turned off.

Problem 3. Fan wobbles
Probable Cause
1. Setscrew in motor coupling is loose.
2. Setscrew in the hanger ball/downrod assembly is loose.
3. Screws securing fan blade flanges to motor hub are loose.
4. Fan blade flanges not seated properly.
5. Hanger bracket and/or outlet box is not securely fastened.
6. Fan blades could be out of balance.

Suggested Remedy
1. Tighten the setscrew in the motor coupling.
2. Tighten the setscrew in the hanger ball/downrod assembly.
3. Check to be sure screws which attach the fan blade to motor hub are tight.
4. Check to be sure the fan blade flanges seat firmly and uniformly to the surface of the motor hub. If flanges are seated incorrectly, loosen the flange screws and retighten.
5. Tighten the hanger bracket screws to the outlet box, and/or secure outlet box.
6. Interchanging an adjacent (side-by-side) blade pair can redistribute the weight and result in smoother operation.

WARNING: FOR YOUR OWN SAFETY TURN OFF POWER AT FUSE BOX OR CIRCUIT BREAKER BEFORE TROUBLESHOOTING YOUR FAN!!!

Hope helps.