Control Board Transformer Voltage


Old 02-09-18, 04:57 PM
Mirage's Avatar
Thread Starter
Join Date: Feb 2018
Location: Canada
Posts: 5
Received 0 Votes on 0 Posts
Angry Control Board Transformer Voltage

I have a furnace having issues and I noticed my Transformer is reading 29.5V output. The Schematic says it should be 24V. Is this a serious problem? Is too much Voltage a bad thing or can my furnace handle it just fine?
I'm thinking maybe the transformer is defective and it's outputting too much Voltage, and not enough current to 'drive' the rest of the circuit.
Sponsored Links
Old 02-09-18, 05:05 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 52,603
Received 338 Votes on 316 Posts
That is ok. Your furnace board can handle that voltage.
For the most part.... higher wattage transformers run at slightly higher voltages.

If you check the voltage under operation.... it should come down some.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Thread Tools
Search this Thread
Display Modes
Ask a Question
Question Title:
Your question will be posted in: