Error 72 Do you have a diagram on how to replace the Engine Control board?

https://www.google.com/search?client=opera&sxsrf=AJOqlzU-dI8YAvNkZwzSOjLS_zvnt_0H8Q:1675716926470&q=I+need+a+schematic+diagram+for+a+Tenma+72-7670+25A+Switch+Mode+Power+Supply+and+would+appreciate+any+help+you+can+give+me.+Just+need+the+diagram+of+the+fan+control+circuit+which+uses+an+S8550+general+purpose+PNP+transistor+to+control+the+fan.&tbm=isch&source=univ&fir=UXlx38zxrVRAAM%252CKckSUXU53YqSKM%252C_%253B30d3oDafLjuxQM%252CXYrlyHhKp51mlM%252C_%253BTdbADCKwwTNvWM%252C2rsgNy1L-c4vCM%252C_%253BW9gLwJjl8Do5xM%252CZygKUBYyxKW-7M%252C_%253BoTFftTsJXzWbuM%252CntZQXqCgIMlP4M%252C_%253BwtQAcBMsrid-rM%252CfSoQepPsvGdD2M%252C_%253BSkFZMA6TI0k_qM%252CnegF5n4bXlW5QM%252C_%253Bp2u6I-HcIsjfXM%252C9CEEh3b_tJQzzM%252C_%253BUcd0hsobjh5gRM%252CZ5Z21fcUqC1PeM%252C_%253BXhPz_lCZoJJc5M%252C7KLVLPNiUCubxM%252C_&usg=AI4_-kQWLWcOn-DFpGH3Ye9jmUS7hdY0mA&sa=X&ved=2ahUKEwiFwJWB5IH9AhVoAzQIHfPLBTUQjJkEegQIBhAC

The F2 E0 error indicates a communication error at the key pad. The key pad could be faulty. There may be a problem with the wiring between the key pad and the control board. The last possible issue is a problem with the oven's electronic control board. First unplug the range (or turn it off at the circuit breaker) and take a look at the wiring. Disconnect and reconnect the wiring harness between the key pad and the control board. Check for any damaged wires in the wiring harness or corrosion where the wiring harness connects (and in the plugs) on both sides. If the wiring is okay, connect the range to power and wait to see if the message recurs. If it does, you'll need to replace the key pad. If the error recurs, then replace the control board when that is sold as a separate assembly.

There is a parts diagram and pricing list for the RF265LXTB1 here: https://www.appliancepartspros.com/parts-for-whirlpool-rf265lxtb1.html . On this range, the replacement key pad and the control board are sold as a single unit. It's part 11 on the Control Panel diagram.

I hope this helps.

Cindy Wells

The F3 error code indicates an open circuit at the oven temperature sensor. Usually this means that the temperature sensor has to be replaced. Infrequently, the problem is with the wiring between the sensor and the electronic control board or the control board itself. You should check the continuity of the wiring and across the temperature sensor and for problems in the wiring harness connections before ordering the replacement parts. The manufacturer's recommendations are to replace the temperature sensor first. If the error code recurs, then you replace the control board.

Your range's model number is probably RS385PXBQ0. Most Whirlpool models end with a number. There are several sources for the parts diagram and price list. The temperature sensor is part 23 on the oven body diagram. One diagram is here https://www.searspartsdirect.com/model-number/RS385PXBQ0/1198/0124100.html . Another source is https://www.partselect.com/Models/RS385PXBQ0/Sections/OVEN-BODY/?ModelID=765297&ModelNum=RS385PXBQ0&mfgModelNum=&ManufactureID=3&Selected=P0ICVYKN&Position=4&mfg=Whirlpool&Type=Range&Mark=4 .

If you look for the control board, it's part 19 in the Main Top diagram at the above sites. The control board is no longer sold by Whirlpool. If it's faulty, the recommendation is to send it to a repair shop for a rebuild. Replacing the range is a better solution if the temperature sensor and wiring are not faulty.

I hope this helps.

Cindy Wells

Powertrain-Internal Control Module EEPROM Error
Possible Causes

• Engine Control Module modified (e.g. Chip Tuning)
• Engine Control Module faulty

Possible Solutions

• Contact your Tuner ;)
• Replace Engine Control Module

Sounds like either a short between the G and R t stat wires or the relay in the control board is faulty. Easy way to check is remove the G wire from G terminal on the control board, if the blower stops, there is a short in tje t-stat wiring, if it continues to run a new control board will be needed since the relay is part of the board.

Service call 120: error

PU unit fan motor

1. Is fan in PU operating?
NO - Replace Fan motor.
YES - Replace engine control board (K7N).

2. Error reoccurs after replacing fan motor.
YES - Replace engine control board (K7N).

This is an NVRAM verify error. If the fault is persistent, even after a reboot, the only solution is to replace the engine board.

These are both problems with you Temperature sensor and circuit.
I would check the sensor first. You should have close to 1100 ohms. If this checks out good and wiring looks good the relay is integrated into the board so you would need to replace the control. The info below was taken from www.appliancehelponline.com You can also find diagrams there to show you what these parts look like.
Open oven temperature sensor (circuit) (over 2700 ohms) or, shorted oven temperature sensor. Could be a result of:
· contamination on terminals
· pinched wire in oven temperature sensor circuit
· cold solder joint on control.
· Disconnect power to range and remove oven temperature sensor connector from control.
· Measure oven temperature sensor resistance at oven temperature sensor connector (take care not to damage terminals in block) - Should read 1100 ohms at room temperature (approx 72 degrees F).
· Measure each oven temperature sensor lead from connector block to ground. If shorted, look for pinched or cut wire in oven temperature sensor circuit.
· Check connector terminals - Look for deformed or corrosion on terminals. Repair or replace.
If all above is ok replace control.
F5
Relay safety circuit failure
· Check oven temperature sensor circuit for intermittent high resistance.
· Check lock circuit
· Press Clear/Off and reprogram control. If code reappears, replace control

Note: If all above check OK the F5 code can be a result of a momentary loss of power (Do NOT replace control or lock, check lock circuit)

if you turn the machine off and turn it back on:
A} error code is gone, problem solved, system just needed to refresh
B} error code returns, pot luck, the engine control board inside of the printer needs to be replaced and coming from me who is a professional and has had to do it twice, please don't call me to do it, it's a pain in the tookus.

Most likley the problem is a faulty Imaging unit. The chip on the unit has failed. You can try reseating the Imaging Unit and if that doesn't work replace it.

Here are the other listed causes.

Cause:
Corrupted NVRAM Possible Causes are Imaging Unit, Fuser, EEprom Board or PE/MCU Board