Raypak rp2100 digital screen

Aug 1, 2011
6
I have a Raypak rp2100 pool heater.
I just replaced the digital readout because the old screen was falling apart and unreadable.
I turned on the heater and heard the ignitor clicking but could only se a VERY faint image
on the digital screen.
Does anyone have any idea what could be wrong?

Thank You, Phil
 
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