THE ALARM IS SOUNDING ON PATTON PRH11
SOURCE: Patton PRH11 Buzzer Sounds on HIGH after 2 minutes
There is a round sensor under the heating elements which sets off the alarm when it thinks it is overheating on the PRH11. Unfortunately, a dirty sensor will fool it into reacting like it is overheated. I cleaned the sensor which was dark and revealed it to be a lighter goldish maybe brass in its original color. If your sensor is dark, it will continue to trip the alarm for overheating and will need to be replaced. If you were lucky like I was and can clean it, the problem should be resolved and it will operate like normal until it gets dirty again. This procedure lasted for 3 days and I had to clean it again. I believe I left the dirt on too long and now my sensor has tarnished plus I live in a rural area with significant dust requiring this recleaning every few days. I only used a damp paper towel with water to clean. Cleaning may work better with alcohol or a tarnish removal solution.
SOURCE: When the alarm on the Patton Electric Heater sounds, whay does one do to fix that?
I have the same irritating unit and there is not a solution beyond buying a different heater. The alarm is sounding because the heater's thermometer is hot and it thinks you are warm enough. You cannot tell it otherwise; all you can do is wait for the heater to think you are cold again, then it comes back on.
Bruce Johnson
Philadelphia, Pa
SOURCE: The Patton heater model prh11
Either the air entering the heater is to cold and unable to satisfy the thermostat or the contacts inside the thermostat have “welded” together, or other faulty internal wiring which could keep the heater running indefinitely. Take it back to where ever you purchased it from or throw it away, that could be a fire hazard.
Hope this helps.
SOURCE: My patton prh11 heater keeps
These heaters all have safety devises in them some for tip over and all for over heating. Your problem sounds as if it has a bad over heating sensor. These will have two wires one in one out, it is usually a positive wire. When they sense that the heater is to hot it shuts it down upon cooling it allows the heater to turn back on. The tip switch does the same if upright it turns on if tipped it turns it off. They are mechanical and thermal switches and they do go bad. These can be jumped out to trouble shoot the problem but I would not run it with out these safety devices in it.
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