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I have a GB142-30 83,000 BTU Output Wall Hung Modulating-Condensing…

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i have a GB142-30 83,000...
i have a GB142-30 83,000 BTU Output Wall Hung Modulating-Condensing Gas Boiler with a 3L default code. no hot water. please help.
Submitted: 3 years ago.Category: HVAC
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Answered in 11 minutes by:
6/10/2015
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 3 years ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,175
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified
Hello,

Start on page 56 at the below link. Normally I would step you through it, but this will be faster for you

Service Manual
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Customer reply replied 3 years ago
ive been through the manual flow sheet thx
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 3 years ago
Great,,then share your results and we will move along..

120v present at motor?
Tacho plug ohmed with no shaorts?
When testing cable did you activate bc10?
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