The thermostat in the picture is a Honeywell T-87F with standard "heating only" sub base. If it were connected to central air it would have the selector switches for "cool-off-heat" along with a fan "on/auto" switch and a Q539A sub-base. Regardless, this is a 24volt control and cannot be directly connected to your 240 volt base board.
IF this thermostat in fact controls the base board heater(s) in question there will be a junction box or control box in the circuit that houses a 110v to 24v transformer for the power supply of the circuit and also a contactor(s) to energize the high voltage circuit to the baseboard heater. A contactor is nothing more than a heavy duty relay, most of the time with exposed contacts that are visible, especially in the lower amperage range required for a small wattage heater.
When you find that control box look closely at the contact surfaces of the contactor(s) with a good light and you will probably notice extreme pitting (rough surfaces) and a lot of blackened discoloration. Once they pit and become rough they can occasionally get stuck together and the springs responsible for opening them when the circuit is satified are not able to disconnect the contacts.
Usually when a 24vac low voltage thermostat is used to control baseboard, the baseboard thermostat is either bypassed (non-existant) or is turned to the warmest setting, which will be clockwise. Either of these cases, then allows the standard room t-stat to control the room temp by use of the contactors described above.
IF in fact you have a contactor stuck closed AND still have the baseboard thermostat (live voltage) installed in the baseboard, USUALLY the one on the baseboard can still be adjusted to the mid-range or lower setting to control the temperature in the room.
There are a lot of variables here to look and to help more specifically, we may need additional information as to what you found.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
... [Read Article]
Latest Ad:
1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
