20 Most Recent Fahrenheat FFH1615 Heater Questions & Answers

It's likely shutting off on a safety. It needs cleaned. Possibly a filter change. If you need further help, reach me via phone at https://www.6ya.com/expert/thomas_092728000e6acb79

Yes you can, just remember what you did so that you can change it back.

You can be assured that the element is 240 volt. The fan motor is also rated at 240 volt. the wires you have black - black are the connections you make to the line. Use a 12/2 with ground. Use a double pole 20 breaker in your panelbox. The green wire is the equipment ground - connect this to the bare wire from the 12/2. On the 12/2 cable - there will be two colors, one black and one white. Wrap a couple of turns of black tape on the white wire both at the heater location and on the white in the panelbox. connect the 12/2 to your 2 pole breaker, the black wire and the taped white to the breaker.

Not really solved yet, but my daughter is hoping to get a new instruction book.
Many thanks
Hilary Miller

most fan forced wall heaters do not move a lot of air. check the cfm rating on the heater. the fan sucks in air from the bottom and forces it up to the top where the element is. broan and nutone have good air flow.

about the only way I can figure is to let the room get very cool and adjust the thermostat to its lowest setting. now turn on the unit. monitor the heat until the stat just opens. the thermostat bimetal will be closed and will open when the bimetal expands and opens its contacts. another way is to hitch up a chart recorder to measure temperature with its output connected to the heater. [too expensive for you or the DIY to accomplish]

These heater elements should never glow red. The fan should come on at the same time the heater elements get power to heat up. If they turn red, the fan isn't starting fast enough, or is just turning too slow. Think of it like a toaster. They glow red but if you blow on them, they cool down until they aren't red anymore but they are still hot. I have this same heater. In the fan end opposite the fan motor, there is a little brass bushing (bearing) on the fan shaft that's mounted inside a rubber mount. Pop the rubber mount out of the heater housing, clean it up with degreaser and put grease or a heavy duty oil on the shaft and reassemble. If it still turns slow after that, it needs a new fan motor. You can probably match it up with the same motor from McMaster Carr or Grainger for cheaper than from Marley. I hope this helps

What is this? please give exact details.

You may have to put a few drops of machine oil on the motor shaft. There is a felt washer on both ends of the motor shaft that absorbs and stores the lubricant. It probably is dry.

Here is the link for the owner's manual. Or call customer service at 1-800-654-3545. http://www.manualshelf.com/manual/fahrenheat/fzl4004/instructions-assembly.html

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