Heating system is hot water/oil. The orginal thermostat is a round Honeywell. Looks like wires are attached. Thanks.
2007-01-14 11:25:18 · 8 answers · asked by Anonymous in Home & Garden ➔ Maintenance & Repairs
What probably happened when you were working with the wires you broke one. The wires are thin and the plastic insulation tends to get brittle after a few years. If you can try cutting back each wire about an inch and re stripping the insulation. Then carefully re-install the wires on the proper terminals. Also check that you did not blow any breakers in the furnace / AC by shorting out the wires by touching them together or putting them on the wrong terminals. Good Luck
2007-01-14 12:03:26 · answer #1 · answered by ec1177 5 · 0⤊ 0⤋
Well, a thermostat (the non digital kinds) are simply an off/on switch just like a wall switch for a light. But instead of working by flipping the switch, it works when the mercury (which conducts electricity) falls to one end of the bulb (the side with the two wires sticking out) makes contact (and turns on the circuit to allow electricity to flow to the relay in furnace).
So technically, you could do an experiment, with no thermostat attached, you should have two wires sticking out of the wall. Twist them together (dont worry, it's ok, nothing bad will happen). The furnace should now fire up. If it doesn't then something happened to where the wires end up at (furnace).
You might have damaged one of the wires that connect to the bulb with the mercury. A multimeter (volt meter) would be the best way to tell by checking for continuity.
2007-01-14 11:33:23 · answer #2 · answered by SharpGuy 6 · 1⤊ 0⤋
Make sure the heat anticipator lever is somewhere between 1.2 and .6. Red to R, White to W. If your original system stat is heating only, there should only be 2 wires. Make sure the stat is mounted on the wall, level. If you short the 2 wires together, the system should start. If it does not, then the problem is not the stat but most likely there is no 24 volts present due to a blown control fuse. Obvious, but did you turn the disconnect switch back on at the boiler?
Bubba beat me to it, but he's correct.
2007-01-14 11:36:10 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Red wire to "r", White wire to "w". If you happned to touch the 2 wire togather, the boiler should turn on. A t-stat is just a switch. By touching the 2 togather, u are bypassing a t-stat. If it still doesn't kick on, make sure u have power to the bolire. If u have power, make sure u have 24 volts to ground on the red wire going to the stat. If no 24 v, your 24 volt, 40 VA transformer is smoked.
2007-01-14 11:34:30 · answer #4 · answered by BUBBA~THE~POOCH 3 · 1⤊ 0⤋
You have something crossed, slow down and read the direction for the digital thermostat and try re-installing it. Take your time and make sure that the theromstat can be used for oil heating. If not try an return it for the correct one you need.
2007-01-17 20:25:38 · answer #5 · answered by 1TON 3 · 0⤊ 0⤋
Use a meter and check to see if you have 24 volts coming to the wires where the t-stat connects. If you have made sure that your power is turned back on, and still have no reading you most likely shorted your transformer and it will have to be replaced.
2007-01-14 11:43:04 · answer #6 · answered by Anonymous · 0⤊ 0⤋
A t-stat is not just a switch you have to set the anticipater to the control that you are using on the boiler or the t-stat will smoke or you will burn up the control. Why did the digital not work?
2007-01-15 02:28:57 · answer #7 · answered by Anonymous · 0⤊ 0⤋
Read the directions and install a new analog thermostat.
2007-01-14 11:33:25 · answer #8 · answered by Clown Knows 7 · 0⤊ 0⤋