Question about Honeywell Focus 6300B 5-2 Days Programmable Thermostat Heater

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Heat Circuit breaker need to be reset for Thermostat to restart

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Re: Heat

If the rating of circuit breaker is ok, and the unit is operating normally( with normal current reading) then you have replace your circuit breaker with same rating.

Posted on Jan 02, 2008

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I have an evcon furnace that was put on brand new about 5 years ago. I have noticed that it doesn't seem to be kicking off and it doesn't seem to be heating my home either. A line was kinked last year...

This going to be little lengthy. The fan can be on from two reasons. If your thermostat has a fan switch, it will say ON or AUTO. Put it to AUTO. Turn your thermostat to its lowest setting and wait 3 or 4 minutes. If the fan stays running, the problem is in the furnace. Newer furnaces have big circuit boards that control all its functions. The fan automatically starts after a factory set period of time (about 45 seconds). Try a HARD reset to get all the furnace functions back to normal. Turn your thermostat as low as it will go. find the breaker or fuse that serves only the furnace. Unscrew the fuse or turn off the breaker for a good minute and replace/reset it. If the fan starts right away, the board is probably bad. PC relays often arc together and the entire board will need replacement. If the fan is off, turn your thermostat way up and see if the furnace lights. The fan will probably restart in a minute or so as a normal function, heat or no. If the furnace does not fire, Let me know and I'll tell you how to check that switch that was replaced.

Oct 24, 2013 | Heaters


Thermostat Line Voltage How to Install or Replace

You either have a new line voltage thermostat or have to replace your old line voltage thermostat. In either case the process is much the same.


  1. Make sure that all power is turned off at the breaker panel. Most heaters that use a line voltage thermostat usually use 240v current so the breaker will either be a double pole breaker or you will need to turn off two single pole breakers to kill all of the power.
  2. Check to see which wires are hooked to the breakers. In most cases it will be the red and black wires, but I have seen many times that the white and black wires were used. Often there is no red available when the white is used.
  3. Take out the two screws that hold the thermostat to the junction box. When you get the thermostat out make a note of which wires go to the heater (load) and which wires are coming from the breakers. (line)
  4. If you have a single pole thermostat installed one of the sets of wires may be wired straight through the box or have the line and load wires connected directly in the box. With a double pole t-stat you will have both sets of wires running through the t-stat.
  5. Remove the old thermostat and wire the new t-stat in the circuit with the load wires hooked to the load or heater and the line wires hooked to the wires coming from the breaker. Make sure to get a very good tight connection as resistance loads will heat up quickly if good contact is not made. This poor connection can and will start fires.
  6. Turn the power on and check the heater for heat output.
  7. Turn the power back off and carefully screw the thermostat to the junction box securely. Then you can reapply the power to the circuit.

Now you are up and running with a new line voltage thermostat installed.

on Jan 16, 2010 | Heaters

1 Answer

My heater won't shut off. The thermostat is off but the heat stays on. What do I do.

Turn the circuit breaker (in your home's circuit breaker panel) that feeds that heater OFF. After the heater cools, remove the cover and check to see if the Thermostat wires have come loose. It may also be an electrical relay problem or the wall thermostat has gone bad.

Feb 18, 2011 | Honeywell (CT62B1015) Baseboard Heater

1 Answer

I have a braeburn 3200 thermostat that has went blank on me yesterday. I have checked the fuse box, no tripped breaker, i have checked the switch on the furnace, its on, and there are no batteries. Im not...

If there are no batteries in the thermostat then the furnace was being used to power it. To make sure it is just a thermostat problem, you can jumper the power and heat wires that connect to the thermostat, usually red and white, or terminals R and W. If the furnace comes on, then you need a new thermostat. If that doesn't work, you have lost power at the furnace somehow. If the breakers are good, and the furnace switch is on, then you can have a bad door switch inside the furnace, a bad transformer in the furnace, or a bad circuit board if equipped. If there is a circuit board, they usually have fuses somewhere on them too that can blow. Just be sure to cut power off at the breakers before checking. Hope this helps and good luck!

Dec 11, 2010 | Honeywell Electronic Programmable...

1 Answer

Heat or air wont kick on but indicator lights show all is well...and it clicks likes its supposed to be on?

It sounds like it's a thermostat problem or a power supply problem with the furnace. One way to troubleshoot the thermostat is to take the thermostat off the wall and you will see the wires and terminals there. R(Red) is Power, W(White) is Heat, Y(Yellow) is A/C, G(Green) is fan motor, and B or C (usually a blue wire) is Common and sometimes hooked up, other times not, depending on system. There also can be more wires if you have a heat pump, but you will just need to know the ones above. Take a jumper wire or needle nose pliers and carefully jumper the R terminal to the G terminal and you should have the fan motor kick on, R to W, heat should kick on. By this time, you will know if the thermostat is bad if everything is coming on when you jumper it. Be careful not to touch any other terminals or wires together and don't worry about the current through the thermostat wires, it's just 24v, so nothing major at all. If it's the furnace, you may have flipped a breaker or blew a fuse inside the furnace, depending on what model you have. If it has a circuit board, it should have a troubleshooting light that indicates the problem and can usually be read on the back of the furnace doors. You may also try resetting the breaker to the furnace as this sometimes helps. Hope I got you on the right path and good luck!

Mar 14, 2010 | Heaters

1 Answer

I changed the batteries in the digital thermostat but the heat won't come on. we woke up and the batteries were dead so we replaced them. we have checked the breaker and the switches on the unit but no...

Turn the system off,at the breakers,and turn the thermostat off.Leave it for 15 minutes,then turn the breakers on,and set the thermostat,and wait to see if it resets,and come s on.

Jan 17, 2010 | Honeywell Electronic Programmable...

2 Answers

My Janitrol GU125-4 furnace will not shut off; cannot be turned off at thermostat, and heats the house to 80 degrees. I have to cut it off at the breaker. What is the fix?

Hi, it sounds like you may have a short in the thermostat or in the wires coming from the thermostat. The red and white wires are for heat. If you open the filter door, there should be terminal screws labeled R, W, Y, G and the 4 or 5 strand t-stat wire going to it. Just disconnect the W wire and replace the door, if the heater stays off you have a short somewhere in the thermostat circuit. Unless you just replaced the T-Stat recently, a rodent may have chewed through the wire or a nail pierced the wire, or ???,  you get the idea. You may need to pull a new T-Stat wire.  Good luck and comment back if you have any other questions.

Jan 09, 2010 | Goodman Heaters

1 Answer

I have a Daton Fuel trimmer furnace for my garage.

On the thermostat see if it has a setting for fan on auto and off try turning the fan on then see if it comes on, if it does then it may be your thermostat has failed if it does not turn on then reset the circuit breakers to see if you have a breaker kicked off. If it was wired properly there should be one near the unit and one in the main breaker panel so be sure to reset both. To do this you must force the breaker switches all the way off then all the way on. On some breakers if you do not force it to the off position it will not reset the breaker. If this does not help let me know and I will try to help you some more just replay to the e-mail you get go to the bottom of the page and post add comment

Nov 10, 2009 | Reddy Heater RLP100 Portable Forced Air...

1 Answer

Goodman furnace

sounds like the fan switch in the furnace is coming on and off. This is common for Goodman. or could be the heat anticipator on the t-stat. While there are several reasons this happens these are the most common.


Oct 29, 2008 | Heaters

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