WMO-1 Draft Switch?
- swyman
- Member
- Posts: 2355
- Joined: Mon. Apr. 13, 2015 9:50 pm
- Location: Blissfield, MI
- Stoker Coal Boiler: Axeman-Anderson 260M Leisure Line AA-220 Boiler (FOR SALE)
- Coal Size/Type: Lehigh Pea
Got a call from the wifey a couple days ago that the furnace was running non stop and water was cold.... Got home hoping to find that my Taco pump took a crap but no power to the boiler. Grabbed the Fluke meter to quickly find that my WMO switch was tripped. I have a power vent system so this is a requirement but what baffles me is I have my PV set a little on the high side. I simply reset it and lit the fire and all back to normal for the last week. This is the first time this has happened, should there be any concern? My draft is about .6 so is within LL specs. Anyone ever have this issue?
- coaledsweat
- Site Moderator
- Posts: 13763
- Joined: Fri. Oct. 27, 2006 2:05 pm
- Location: Guilford, Connecticut
- Stoker Coal Boiler: Axeman Anderson 260M
- Coal Size/Type: Pea
.6 or .06 on that draft? Very big difference, huge.
- McGiever
- Member
- Posts: 10130
- Joined: Sun. May. 02, 2010 11:26 pm
- Location: Junction of PA-OH-WV
- Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
- Hand Fed Coal Boiler: BUCKET A DAY water heater
- Hand Fed Coal Stove: Warm Morning 414A
- Coal Size/Type: PEA,NUT,STOVE /ANTHRACITE
- Other Heating: Ground Source Heat Pump and some Solar
Look for basketball...err.... Maybe your electric power flickered or gust of wind pounded against outdoor discharge.