DIY Chatroom Home Improvement Forum

DIY Chatroom Home Improvement Forum (http://www.diychatroom.com/)
-   HVAC (http://www.diychatroom.com/f17/)
-   -   Weatherking pressure switch stuck closed error code (http://www.diychatroom.com/f17/weatherking-pressure-switch-stuck-closed-error-code-89878/)

bobnorman76 12-18-2010 09:29 AM

Weatherking pressure switch stuck closed error code
 
I have a weatherking furnace. The furnace intermittantly will not start at night when it's very cold. The control board is flashing four lights which is saying the pressure switch is stuck closed. I recently installed a new pressure switch and hoses so I know they are not clogged. I checked and the switch is actually open but the control board still says it's closed. I also have a new control board so I don't think it's bad. I know the pressure switch is wired through a control transformer and a little black box (pressure switch delay timer). If I wiggle the wires on these it will usually fire up after I reset it and run for a week or two. Is it possible one of these are bad and how can I test them to know for sure? Why would this only happen when it is very cold at night? I know they don't cost much to replace but I don't want to be throwing money away.


All times are GMT -5. The time now is 06:34 AM.


Copyright 2003-2014 Escalate Media LP. All Rights Reserved