Question about Reddy Heating & Cooling
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Posted on Jan 02, 2017
SOURCE: reddy heater model 28725
propane heater uses a hot surface ignitor. this operates off 120 volts and glows red/orange when actuated. it stays lit throughout the heater on operation. on the backplate of the combustion chamber is a high limit with two wires coming off it. these two wires connect to the spade connectors on the flame detector cappillary. Once you establish a fire, the flame detector generates a 750 millivolt signal which is applied to the pilot/main valve assembly. My diagram will show this.
Posted on Oct 15, 2007
SOURCE: Reddy propane heater RLP100
Try a little longer, sometimes it takes a full minute to heat the thermocouple. Check and make sure thermocouple is in flame. If all this is ok. then your going to have to change the valve.
Posted on Nov 30, 2008
Test the thermocouple:
will run as long as the control valve is pressed.
According to DESA test these parts. NOTE: Not all heaters are equipped with
Turn off gas supply. Remove thermocouple
from gas valve. Using a digital
multi-meter set to the lowest DC millivolt
setting (meter needs to have alligator clips
on ends of leads), clip black lead to the
very tip of thermocouple (end removed
from valve). Clip red lead to the outer casing
of thermocouple for ground. Relight
unit output should be between 18 and 28
Turn off gas supply. Remove bottom of
base (if equipped). Relay is a normally
open circuit between terminals 4 and 6
which closes when current is supplied.
Using a digital multi-meter measure the
resistance. With no power to unit, resistance
between terminals 4 and 6 is open
circuit or no resistance. Apply power to
relay. Resistance between terminals 4 and
6 should be less than 100 mili ohms.
Posted on Nov 04, 2009
Is there a frost line on your LP tank, if so you may need to replace the tank with a larger tank or refill your tank. This can happen if the tank your using is too low or too small (use 100 lb tank or greater). If there is no frost line it may be an issue with the thermocouple. The manufacturer offers a service manual and owner's manuals on there site. This should assist you... www.desatech.com Thank you
Posted on Jan 28, 2010
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