SOURCE: I purchased the Patton PUH9000 heater last year. I
These have poor quality safety parts that fail in about 1 season or less, the failure rate for these little cheaper units is high, go Honeywell next time!
SOURCE: I purchased the Patton PUH9000 heater last year. I
My Patton PUH682 utility heater from 2011 is otherwise in excellent condition but Auto Safety Shut-Off seems to be a design problem. My overheat sensor quickly shut off the unit when surrounding air was cool. It is inside the bottom of the fan box wired between the on/off potentiometer and heating coils.
I identified it by turning on the heater and watched the metal contacts separate as it tripped. On my unit, the defective overheat sensor is hardwired. Since it was otherwise useless as a heater, I decided to jerry-rig it and hope for the best. I pried back the sheet metal edge of the fan box and wrapped the sensor with electrical tape. Then I took a very small squeezable metal paper clip and lined it with electrical tape. I clamped it over the overheat sensor and it fits perfectly to prevent the metal plates from separating. Now the heater works the way it should. The cable, coils and plug don't overheat on Hot setting and it runs continuously.
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