I have a natural gas heater in my garage, and today I realized it's
still giving me problems. (it was last year too, but it got warm before
I got concerned)
This is a ceiling hanging model, with a pilot light, but I use it so
seldomly I light the pilot light each time.
So the procedure I follow is to turn on the gas valve, turn the valve
on the unit to "light", hold down the pilot button, light the flame with
a long match, and wait holding the button down for a painful interval
until releasing the button no longer makes the pilot die.
So far so good.
So I then kick on the electrical, and the unit fires up full bore
with fan and heat, and runs for a while. (20 minutes or so, enough to
get the garage warm)
However, then I notice that the flame is out, even though the
thermostat should still have it on. The pilot light is out as well, just
the fan is running, and it shuts off after a while too.
Any ideas?
I suspect something in the safety circuit is malfunctioning and
cutting off the gas, thinking the flame is out. This might also tie into
why it takes a long time for me to be able to release the pilot button
before the system stays running on it's own.
Perhaps the sensor is position sensitive, and needs a tweak? I
confess I don't know all the basics on these systems and obviously want
to be very careful, but it seems simple enough.
--
Trevor Boicey, P. Eng.
Ottawa, Canada, tboicey@brit.ca
ICQ #17432933 http://www.brit.ca/~tboicey/
"I am disrespectful to dirt. Can you see I am serious!" - Mr. Sparkle
/// unsubscribe/change address requests to majordomo@autox.team.net or try
/// http://www.team.net/mailman/listinfo
/// Archives at http://www.team.net/archive/shop-talk
|