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Re: heater won't come on
Its difficult to make a homeowner an expert in troubleshooting his/her equipment if he/she has no technical background - but - I will try. First check the cord to plug connection. Is it tight? Does it look melted? Next, take the unit apart where the cord goes into the unit. Check the wiring path. Look at each connection. Look for burnt off wires at connections. Most connectors are the push on type and are mechanically fastened to the wires. if they are burned off you'll need replacement spade terminals and a crimping tool. (radio shack) has these. one wire will go through a thermostat and out to an element terminal. one wire may go through a thermodisc overload, then to the thermostat and then to the element. the other wire will definitely go straight to the element. there may be some extra connections for lights etc. if you have to take apart the heater make a diagram of which wires go where. use some masking tape with numbers written on it to make sure the wires go back to the same place you took them off.
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Your pressure switch may not be activating (ie closing and making contacts) This means you could have a blocked flue, clogged pressure switch tube or a bad pressure switch. The pressure switch is a safety feature to ensure your exhaust is not blocked and operating correctly. Find owners manual. Look at trouble shooting section. Open cabinet and look for error code light. If blinking 3 times, try "jumping" the pressure switch. To jump pressure switch you need to clear code be turning off power. When the unit/thermostat calls for heat the power vent fan starts first, this is when you need to jump the pressure switch. You need to do this in sequence. That is the unit first starts the power vent exhaust thus activating the pressure switch allowing the ignition cycle to the burners and heat. So the power vent fan needs to start first BEFORE you put the jumper on to bypass the pressure switch. Once the jumper is on it will call for ignition after approx 30 seconds. If ignites your problem is one of the 3 stated at the opening of this paragraph
If you're asking if the Mr heater you referenced will heat 1000 sq ft, it won't. You'll need at least 32,000 Btu's to heat that much space. Either a gas mounted convection or infrared wall heater or a vent-free gas fireplace, that has a maximum heat out put of 32,000 Btu's should do the trick. Keep in mind, the air temperature in a basement, doesn't change more than 10 degrees F, thru out the year, so more than 32,000 Btu's is not better.
Hope this helped you and thanks for choosing FixYa.