Dearborn heater

Old 11-25-13, 08:53 AM
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Dearborn heater

I'm wondering why our heater isn't keeping the fan on. The pilot and burner are working but the fan isn't turning on until after 3-4 minutes of burner activity and then when it turns on, only stays on for about a minute then another 3-4 minutes of burner. It is vented and there is a spill switch. Could it be the entire thermostat valve assembly that is malfunctioning or maybe a small part within it?

Old 11-25-13, 09:06 PM
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Welcome to the forums.

We try to keep a problem contained within a single thread.

Dearborn Counterflow Wall Furnace Model DVF-65C / DVF-50C.

Very little info found online. The following link may be of some help.

It probably has some type of limit/stat that thermostatically turns on the heater. That part may be bad. If you could post a few pictures of unit and wiring and maybe we can help from there.

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