WMO-1 Draft Switch?

Post Reply
 
User avatar
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

Post by swyman » Mon. Dec. 05, 2016 11:41 pm

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?

 
User avatar
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

Post by coaledsweat » Tue. Dec. 06, 2016 7:43 am

.6 or .06 on that draft? Very big difference, huge.


 
User avatar
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

Post by swyman » Tue. Dec. 06, 2016 8:39 am

coaledsweat wrote:.6 or .06 on that draft? Very big difference, huge.
opps... .06

 
User avatar
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

Post by McGiever » Tue. Dec. 06, 2016 10:13 am

Look for basketball...err.... Maybe your electric power flickered or gust of wind pounded against outdoor discharge.

Post Reply

Return to “Coal Bins, Chimneys, CO Detectors & Thermostats”