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Triangle Tube Solo 175 won't fire/won't respond to control panel buttons

blentzco
Member Posts: 1
in Gas Heating
i just replaced the main control unit in December - was working fine - woke up to no heat today. Checked boiler and found that it won't fire and it won't respond to any of the front panel buttons. I swapped out the button board with a spare button board with no success.
0
Comments
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Are we talking about the Prestige with the MCBA 5 ?
1. Bad ribbon cable for the "button board" ?
2. Are the internal Fuses OK ?
3. Bad voltage supply (spikes) causing failures of the control ?
We protect our boilers with a UPS.0
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