Search found 2 matches
- Fri Dec 15, 2023 9:33 am
- Forum: Help and Advice
- Topic: NCM-300 heats for only for 3 mins
- Replies: 2
- Views: 6250
Re: NCM-300 heats for only for 3 mins
Thank you!
- Thu Dec 14, 2023 7:56 pm
- Forum: Help and Advice
- Topic: NCM-300 heats for only for 3 mins
- Replies: 2
- Views: 6250
NCM-300 heats for only for 3 mins
The setup is an EWC NCM300 zone controller on a Rheem furnace with 2 zones (10 years old). A supply air sensor (SAS) is also used. When heat is called, it runs for for about 3 minutes and shuts off even though the zones are still calling. The supply air limit light comes on the board at this time an...