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Weil Mclain Ultra
Lakewood
Member Posts: 7
I'm having a problem that my Weil Mclain ultra is not resetting. Error code U 1.25. Any suggestions?
0
Comments
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Display shows U124 or
U125
Display stays on U124 or U125 1 Check transformer. If good:
s
Turn off power to the boiler.
s
Disconnect thermostat wires at boiler.
s
Replace F3 fuse.
s
Determine cause of fuse failure on 24-volt system.
s
Replace defective part and retry.
2 If problems persists, check low voltage terminal strip and wire harness.
Replace if necessary. Retry.
3 If problem persists, replace control module.
But it's usually the control module.
you should have received the updated control supplement which the above is directly from.0 -
Weil McLain Ultra Parameter Setting.
I have an oversized boiler, and reduced the perimeter 13 setting to 40, however, left the perimeter 15 setting to 52. Meaning, that my boiler did a DHW call should provide 190° heat, but it does not. It seems to be reduced to the fan speed I use for home heating. I checked the setting and it seems fine to me. Any suggestions?0 -
Why not start a new thread on this, for more clarity.--NBC0
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