Question about Sterling RF75 Natural Gas Heater (75,000 BTU)
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Posted on Jan 02, 2017
There are dip switches on the main board.. When you remove the lower panel on the air handler there are instructions to where the dip switches should be for your units fan control. if the switches are in the correct configuration.. The Thermostat may be malfunctioning or not wired properly. and last.. and most expensive.. the motherboard may also be failing.
Posted on Jan 12, 2009
SOURCE: main burner comes on and
There could be a couple of different things happening...
The most likely is that the high limit switch is bad and the flame causes it to bring on the blower and then shuts the flame down also...this could be because the high limit is bad or because the vent is blocked and the flue gases are not venting...
Could also be a bad/dirty flame sensor, but that is not as likely...
I would checkout the high limit and find out what is going on there...
Posted on Feb 02, 2011
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