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Carrier 58DFA gas furnace problems
Have a Carrier Gas Furnace (model 58DFA) that’s giving me problems; it’s the weekend so no shops are open and its getting cold! I’m more of a plumbing/construction type so I’m venturing into somewhat unchartered territory here….so, appreciate the assist!
Was working fine but now the main gas jets aren’t firing; pilot light’s on, blower fan activates, fuse is good, filter’s clean, and no flipped circuit (or switches) breakers. Replaced the thermostat with a Honeywell unit (no big deal, wanted a programmable one anyway) and have ran the checklist that came with the unit as best as I can to check the board (VAC test etc.) but have hit snags where I’m not 100% sure what/how to proceed. Ex. Below.
- 24 VAC across gas valve: ?
- 24 VAC across pressure switch No contact & screw C on board ?
- 24 VAC across PL1-2 & screw C on Board ?
Just trying to do what I can & if I can get it running well, the heat will be welcome! Not sure how complete this checklist is but almost all of the end-roads do point to replacing the circuit board (?)
Again; any help you folks can provide is most welcome!
Last edited by KMoses; 02-24-2008 at 05:34 PM.
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Linear Mode
