How do i replace a u43 relay board, need step by step after i have the unit out?

It sounds like you may be having an issue with your Dacor double oven. If the relay board is preventing the oven from working, there could be a problem with the board itself or with a component it controls.
To troubleshoot this issue, you may want to try the following steps:

1. Check the oven's electrical connection and circuit breaker. Make sure the oven is properly plugged in and that the circuit breaker has not tripped.
2. Check the relay board for any visible damage, such as burnt or melted components. If you find any damage, the board may need to be replaced.
3. Check the oven's thermostat. It is possible that the thermostat may be faulty and not allowing the oven to heat up.
4. Check the heating element. If the element is not heating up, it may need to be replaced.

If these steps do not help resolve the issue, you may need to call a repair technician to diagnose and fix the problem. It is generally not recommended to try to repair an oven yourself, as it can be dangerous and may void the manufacturer's warranty.

FixYourBoard.com will test and remanufacture the relay oven control board in this model. Each rebuild comes with a two year warranty.
Reach out to us at 512-355-1108 or [email protected]

FixYourBoard.com will test and remanufacture the relay oven control board in this model. Each rebuild comes with a two year warranty.
Reach out to us at 512-355-1108 or [email protected]


http://www.fixyourboard.com

F10 - Runaway temperature. If these error codes shown while the oven is in day time mode, the EOC (electronic oven control) would need to be replaced. Otherwise check the oven temperature sensor (RTD sensor) as described earlier and replace if necessary.
Most of the EOCs incorporated power relays among all other components while some of ovens use a separate power relay board to simplify design and lower cost of production. You can determine it by visual EOC inspection and/or by the wiring diagram for your oven (if it is available). If there are some relays on it, replace the EOC. If there are no relays on the EOC, check the parts list (Search by the Model number) for the relay or power board. If there is a such part, replace it. I'll be glad to help you if any problems with the diagnostic. Just leave a comment on the bottom of the page. In such situation I'll need the complete model number of the oven.

FixYourBoard.com will test and remanufacture the relay oven control board in this model. Each rebuild comes with a two year warranty.
Reach out to us at 512-355-1108 or [email protected]

First, check the 220v line and breakers are properly grounded and that you are getting a constant 220v at the plug. Then you will need to check the transformer on the unit.To test a transformer you need to know what type of transformer it is first. There is a step up transformer which steps the voltage up and a step down transformer which steps the voltage down.
You will still test the transformers the same way for step up and step down transformers. If it is a step up transformer apply the incoming power to the transformer or plug it up. Now take your multimeter and place it on the AC volt scale and test the voltage if the voltage on the data plate says the transformer should step up to 220 volts and it doesn't then your transformer is bad.
Now repeat the same steps for a step down transformer. Plug up the incoming or primary power and test voltage on the outcoming or secondary side the voltage should step down to the proper value. If you don't read any voltage on the secondary or outgoing side then the transformer is bad.
To read the voltage place the two meter leads on the secondary side, or the side you will plug your equipment into. If the secondary side is an outlet then place the two meter leads into the top two slots in the plug and read voltage. You also want to make sure the incoming power is working as well. Otherwise you will be reading a bad reading every time.
If all that looks good, then you will need to replace the control board. Here is a link to the parts for your range.
Regards,Richard

FixYourBoard.com will test and remanufacture the relay oven control board in this model. Each rebuild comes with a two year warranty.
Reach out to us at 512-355-1108 or [email protected]

FixYourBoard.com will test and remanufacture your faulty oven control board. Each rebuild comes with a two year warranty.
Reach out to us at 512-355-1108 or [email protected]

Hi, This code is an indication of a fault that exist within the actual relay board. It is malfunctioning at this time, and should be replaced asap, if possible.This relay board is located inside the unit, mounted on the cooling fan shroud. Once replaced, the F1 code will be cleared automatically.

Relay board part number: Y04100261

Click here to view an exploded diagram of the cooling fan shroud, with relay board attached. The relay board is labeled number 9, and the shroud is labeled number 1

Maybe, if you have a mechanical type of thermostat. Could also be the circuit board. Wonder why you blew the breaker in the first place. If the unit is digital, the thermostat is really a sensor, a relay and assorted electronics. The relay and electronics are on a circuit board. That's what you're going to be buying.