Breckwell P23 Control Board Troubleshooting

[MeJay Mike]

Hi all. I’m trying to determine if my control board is the cause for an over temp on the internal cutoff of my convection motor. When I measure the voltage (very confident but still safe when measured) going to the motor on various settings (1-5) I get the following:
Settings/Voltage
1 / 99
2 / 110
3 / 118
4 / 120
5 / 120

It seems odd and in my head the 4 and 5 should not be equal. Anyone ever measured? Anyone willing to on there’s? I could have sworn setting 1 should be more like 86 VAC.

Thanks in advance,
Mike

 

[MeJay Mike]

Anyone?

Or does anyone have a schematic for the board CE-404 board?

 

[zrock]

I have a big e and my fan runs the same speed on 4 and 5 so im thinking those settings are right.. On mine settings 4 and 5 are to be used for a limited time. My stove usually runs on 2 or 3 and then down to 1 when the room gets up to temp

 

[Ssyko]

Ther is no schematic that has been released from the board mfg. many have traced the circuits on their own but the programing on prom does most of the work. Optoisolaters and triacs take the prom instructions and set speeds trough the optoisolaters and trigger the triacs accordingly. My 2 boards are very much like what you have come up with +\- 2-3v.

Internal cut-out can be caused by many things, age bearings, windings, lubrication, fan/squirrel cage dirty(more load on motor).

 

[MeJay Mike]

Yeah, I have replaced the fan with no difference. Both get crazy hot.

 

[MeJay Mike]

Oh and I guess the more I think about it, my 4 & 5 settings should be the same.

 

[MeJay Mike]

The local store thinks hot air is leaking from the fire into the rear portion of the stove (insert not free standing). Seems odd, but cracks could happen I guess. I would just think it would get very dirty back there if this was the case and it’s not.