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  1. Compressor capacitor failed twice? (4 replies)
  2. Air conditioner (0 replies)
  3. Superheat vs Subcooling method for adding R22 (0 replies)
  4. Why is my AC not responding? (1 replies)
  5. Thermostat wire (0 replies)
  6. Don't know if I have the correct air return size HELP (0 replies)
  7. Circuit Breaker trips when system is turned on. (4 replies)
  8. About the problem of Carrier Model 58MXA (0 replies)
  9. Central A/C... $$ for only fan on vs. A/c w/fan (0 replies)
  10. Are air handlers compatible with R22 and R410? (6 replies)
  11. Should I have my fan switch on auto or fan (1 replies)
  12. New unit never run 410 unit can I charge it with r22? (3 replies)
  13. A.c. Unit? (1 replies)
  14. A/c is on outside but furnace is not running got power from the breaker but the led (0 replies)
  15. Cutoff valve problems (0 replies)
  16. Condensation or Leakage (0 replies)
  17. AO smith Hot Water Heater erratic/wont stay lit (3 replies)
  18. Ritetemp-thermostats (0 replies)
  19. Outside compressor kicks off/on while unit is running (2 replies)
  20. How many BTUs do I need for an air conditioner? (0 replies)
  21. Sears wall furnace 600 series (0 replies)
  22. York air and heat troubleshooting? (1 replies)
  23. Is capacitor specific to fan motor? (5 replies)
  24. My air conditioner, fan and heat will not work. I replaced the thermostat-no luck (1 replies)
  25. Wiring for 50a50-241 (1 replies)
  26. Wiring for 50a50-241 (0 replies)
  27. Ac in my house does not get very cold What could be the problem? (2 replies)
  28. Ac/furnace won't shut off (0 replies)
  29. Outside gas pac (natural gas) has lot of soot on furnace (0 replies)
  30. Fan on condenser unit not turn all the time. (0 replies)
  31. We got a hunter dig thermostat 44127 what color wire goes in the rc? (1 replies)
  32. A/c condenser (1 replies)
  33. Contactor not pulling in (6 replies)
  34. Hvac (1 replies)
  35. C my coleman presidential II blower works but no heat unless set at a high temp (0 replies)
  36. What should I expect to pay to repair my air conditioning compressor, trane xb 1000? (2 replies)
  37. Blower wheel (2 replies)
  38. Ac (1 replies)
  39. My inside unit is freezing up and so is my outside line can someone tell me what need (3 replies)
  40. Blower doesn't come ON (0 replies)
  41. Wiring a new thermostat to an old central heat and air condition system (3 replies)
  42. AC unit contactor will not engage, but, occasionally will. Please help with troubleshooting. (Heat index 101 today) (0 replies)
  43. I need to cool off (1 replies)
  44. Help with McQuay system that is in my apartment, I want to install Automatic Therm. (0 replies)
  45. Honeywell magicstat 28 troubleshooting? (3 replies)
  46. Need to know how many tons our tempstar air conditioner model #nac242akc3 is (5 replies)
  47. Rheem criterion II air conditioner not working (1 replies)
  48. Old SEARS Homart 600 furnace (1 replies)
  49. Blower keeps running (3 replies)
  50. How to wire a totaline thermostat (0 replies)
  51. Living room isn't cooling properly during the summer? (7 replies)
  52. A/c condenser only going half speed? (3 replies)
  53. HVAC Condensing Unit Wiring, Capacitors and Fan Motor (3 replies)
  54. Water leaking from furnace when ac is running (2 replies)
  55. Replacing entire duct system in a modular home (3 replies)
  56. Goodman circuit board (2 replies)
  57. Converting baseboard heating to forced air, estimated cost and what's involved (2 replies)
  58. Propane Tanks (8 replies)
  59. Issue with Maple Chase Thermostat (1 replies)
  60. New fan motor sometimes spins in wrong direction... help? (7 replies)
  61. Wiring a robertshaw 9260 (0 replies)
  62. White rodgers type 1f90-51? (3 replies)
  63. Wiring a new Heil heat pump capacitor for the outdoor unit (2 replies)
  64. The orange wire is disconnected in my white-rodgers thermostat (0 replies)
  65. Payne Model PG8UAA048091 Central Air & Heating Unit (0 replies)
  66. Is there a way a technician can sabotage my AC system so that it fails? (1 replies)
  67. Air handler heating element on with a/c running (0 replies)
  68. Goodman circuit board. (3 replies)
  69. I need a wiring diagram for a rheem ac model number rpnd 024j 010 (0 replies)
  70. 3 wires 220 volts power protector (1 replies)
  71. Should A/C compressor start at same time as inside blower? (1 replies)
  72. Filter needed for Concord 80 plus gas furnace (1 replies)
  73. Need help wiring a thermostat (0 replies)
  74. My central ac will start to blow warm air in the middle of the day. Why? (0 replies)
  75. How does a spill switch work on a heating boiler (1 replies)
  76. RuUD Condensation (0 replies)
  77. Does an extra line dryer in liquid line create any issues in a heat pump? (1 replies)
  78. Collector Box Cover (1 replies)
  79. Trane heat pump troubleshooting? (1 replies)
  80. Compressor (5 replies)
  81. Why is my ac not cooling? (2 replies)
  82. Locating the fuse in a furnace? (1 replies)
  83. Trane air conditioner Model #TTB024C100A1? (1 replies)
  84. Outside unit does not start (4 replies)
  85. Coleman blower motor won't shut off (1 replies)
  86. Ruud Seer 11 condenser fan 1/6 hp- .90A-1075rpm replace with 1/5hp-1.3A-1075rpm? (4 replies)
  87. Intertherm mobile home furnace (1 replies)
  88. There is a rapid clicking noise coming from the vent when my home a/c unit goes on. (1 replies)
  89. Gas Conversion (4 replies)
  90. What does error 79 mean on a trane programmable thermostat? (1 replies)
  91. Having wiring problems installing my honeywell rth221 (0 replies)
  92. Ceiling drip (1 replies)
  93. Intertherm thermostat (0 replies)
  94. Central air with faulty heating element (1 replies)
  95. Can Honewell Thermostats be used to replace Intertherm Thermostats? (1 replies)
  96. Keeprite 9MPT high efficiency furnace turns on when heat is not called for? (0 replies)
  97. Existing wiring to a new thermostat (2 replies)
  98. Set ac unit in home on 76 but it is freezing won't shut off? (0 replies)
  99. I just replaced my thermo couple in my gas heater, I notice it is glowing red orange (0 replies)
  100. Central Air (Amana) Blower not working - Question and answer (4 replies)
  101. Where is the txv located on a central ac unit and what does it look like (1 replies)
  102. Rheem Criterion II - Ice on Coils (0 replies)
  103. Intertherm furnace wiring diagrahm (0 replies)
  104. Carrier model 58STX070- motor blower not functioning, regardless of setting. (0 replies)
  105. Trane xv80 a/c with air filtration system: starting to make noise (0 replies)
  106. Payne compressor needs replacement (1 replies)
  107. Why doesn't a coleman central air conditioner shut off? (1 replies)
  108. Wiring diagram for split system fan motor (1 replies)
  109. Fan relay on coleman furnace (1 replies)
  110. AC not cooling down in home (1 replies)
  111. Is my r22 a/c split system over-charged or need cleaning? (0 replies)
  112. A/C A-Coil only cold on the bottom (0 replies)
  113. Installed new cnt03797.blower won't cut off (1 replies)
  114. Fan on ac unit is not on outside (1 replies)
  115. Why is my Infinity thermostat displaying-Code 74 -- No high voltage at compressor (1 replies)
  116. AC not working (1 replies)
  117. Hello, I have a Rheem ac unit I just had to replace the fan motor. (1 replies)
  118. Hello, I have a Rheem ac unit I just had to replace the fan motor. (1 replies)
  119. Fan runs for 2 minutes every hour (2 replies)
  120. Trane 2.5 ton 12 seer heat pump (0 replies)
  121. Cleaning (0 replies)
  122. How many amps would a 480 volt air/heat unit and a transformer draws (0 replies)
  123. Malf light is on I have a model 1f89-11 the malf light is on (1 replies)
  124. Cenral air outside fan runs all the time... Why? (0 replies)
  125. Installed new condenser (1 replies)
  126. Bryant 310 aav furnace (1 replies)
  127. Carrier heat pump comes on and off inconsistently (0 replies)
  128. How to I get to the coil to see if there is any ice on it? (1 replies)
  129. Filter replacement (1 replies)
  130. My blower fan is kicking on & off , what do I need to check? (0 replies)
  131. Help with AC (2 replies)
  132. House not getting cool (1 replies)
  133. HVAC noise at returns (0 replies)
  134. Air Conditioning Troubleshooting (0 replies)
  135. HVAC compressor replacement cost on 2 year old unit (1 replies)
  136. York chillerycal0030ec17x out on hi limit control? (0 replies)
  137. Condensation in basement when air conditioner runs (1 replies)
  138. I installed an RTH2300 this winter to replace an old mercury thermostat. (2 replies)
  139. Overcharged air conditioning system (2 replies)
  140. What thermostat do I need? (0 replies)
  141. Hs29-024-1p (3 replies)
  142. Rheem RGPH-10EAMER ,What size condensEor matches to it? The coil is a BA37102A07709 (1 replies)
  143. How to install a blower motor on 1988 nissan stanza (1 replies)
  144. Thermostat went blank (1 replies)
  145. The pump would not run (0 replies)
  146. Adding ac unit (1 replies)
  147. Luxaire Central Air Conditioner - ACCLIMATE - intermittent problem (1 replies)
  148. GE AC aew10ajs1 Temp Readout showing 99 (0 replies)
  149. Furnace (1 replies)
  150. Sizing of Rheem AC Unit (1 replies)
  151. Furnace Queations? (1 replies)
  152. Size question (0 replies)
  153. Pressure difference from top to bottom in closed loop chilled water system (0 replies)
  154. Goodman AC stopped blowing cold (0 replies)
  155. Leak in the Coils of a residential unit (3 ton Trane) (0 replies)
  156. How can I fix my central air conditioner. (1 replies)
  157. A/C not working on Auto mode but will run on manual mode (0 replies)
  158. How to wire a four wires condenser fan motor? (3 replies)
  159. How do I wire up new fan motor (0 replies)
  160. Central air runs WAY to long (24 hours still not ahut down) (0 replies)
  161. How much freon does a 4ton central a/c unit hold (0 replies)
  162. Why does the fan keep running. (1 replies)
  163. My home ac is not cooling properly (1 replies)
  164. Vent a portable air conditioner through a no longer used wall gas heater (0 replies)
  165. Diplomat lennox series AC (1 replies)
  166. My Air Conditioner Is Not Cooling? (0 replies)
  167. I have a 1994 Tempstar 5000 CA5536UKA1 (0 replies)
  168. Heat pump loses freon (0 replies)
  169. Help! Wiring new thermostat... Old Honeywell T834 to Hunter dig/program 44155 (4 replies)
  170. Goodman central air conditioner ckl30-1l? (2 replies)
  171. Need wiring schematic for lennox hs23 air? (0 replies)
  172. Need wiring diagram for lennon hs23 air condition. My chalk ran in this heat (0 replies)
  173. A/c (0 replies)
  174. Bryant Model tstatbbpb501 Thermostat Wiring (0 replies)
  175. Rad blew up (0 replies)
  176. I need a wiring diagram for nordyne M1MB090A-AW gas furnace (0 replies)
  177. Blower fan (0 replies)
  178. Kleenheat gas heaters what causes error 11? (0 replies)
  179. Installed a honeywell rth230b, the furnace turns on, but the central air won't. (0 replies)
  180. I need to know how to wire t-stat to condenser unit if colors are yellow red green an (0 replies)
  181. Cm260 robert shaw? (0 replies)
  182. How to change a ameristar fuse in air conditioner (0 replies)
  183. Replacing Honeywell Thermostat chronotherm model 890121 to lux tx1500. (0 replies)
  184. Does system need to be replaced (2 replies)
  185. Do I reall why need a new central A/C unit? (0 replies)
  186. Bad compressor? (0 replies)
  187. My unit makes a loud idling noise when not running. Why? (0 replies)
  188. Fan Relay Switch (0 replies)
  189. RUUD Air Conditioner Blower Noise (0 replies)
  190. Hvac (0 replies)
  191. Noma air conditioner #043-5443-4 (2 replies)
  192. Ritetemp thermostat (0 replies)
  193. Fan Motor or Blower Motor? Trane XB80 (0 replies)
  194. Help wireing mix up (0 replies)
  195. Rudd heat pump doesn't cool during hottest part of the day (2 replies)
  196. My diplomat lennox series ac is not cooling well (0 replies)
  197. Ac control board (0 replies)
  198. My brand new central AC Unit is not blowing cold air (6 replies)
  199. New install rudd a/c question? (2 replies)
  200. 3 way erie zone valve (0 replies)
  201. Need help wiring my thermostat to furnace. (0 replies)
  202. What causes AC compressors to explode on heat pumps? (5 replies)
  203. Messed up (0 replies)
  204. Did not flush out r-22 line set for 4-10-a? (0 replies)
  205. Outside AC fan not spinning (2 replies)
  206. Central Air Conditioning Unit (0 replies)
  207. Condesation dripping Trane air handler. (2 replies)
  208. No air (1 replies)
  209. A Coil (3 replies)
  210. Dripping sounds in wall behind furnace? (0 replies)
  211. Carrier 38YCC 060 compressor does not turn on (0 replies)
  212. Changing a condenser fan motor with different wires? (0 replies)
  213. Central air, cut wire (2 replies)
  214. In need of Seal Plate (part #SI-7945-166 for old Coleman Propane Gas AC/Furnace (0 replies)
  215. Bryant Plus 90 model 398A (0 replies)
  216. Can you install the condenser of a heat pump in a garage? (1 replies)
  217. No air (1 replies)
  218. I have replaced a maple/chase 09620 thermatstat with a honeywell rth2510 (0 replies)
  219. AC Blower running reverse! (0 replies)
  220. Air conditioner (0 replies)
  221. Blades on central air run continuously on low speed (0 replies)
  222. Air Conditioning upstairs in Townhouse not cooling, any ideas? (11 replies)
  223. Blower fan will start and shut down (0 replies)
  224. Circuit breaker trips on Trane XB1000 (0 replies)
  225. Split Air Conditioner Piping (0 replies)
  226. Carrier hvac fan motor is intermittent (0 replies)
  227. Carrier weathermaker heater 58wav091-16 won't start (0 replies)
  228. Air conditioner (0 replies)
  229. Thermostat won't start fan on trane xb80 (0 replies)
  230. Replacing coleman thermostat 1c26-10 (0 replies)
  231. Heating and air (0 replies)
  232. Heating and air unit (0 replies)
  233. My ac unit is blowing cool but not cold air (0 replies)
  234. AC unit relay not picking (4 replies)
  235. Thermostat off, unit keeps coming on (0 replies)
  236. Aux heat running carrier airconditioner (0 replies)
  237. Screw compressor not loading why? (1 replies)
  238. York diamond 80 flame sensor and furnace intermittent operation (2 replies)
  239. I am Trying to install a heat pump (1 replies)
  240. What causes the fan on my trane unit not to turn. (1 replies)
  241. My Air Conditioner Not Cooling? (0 replies)
  242. Can an split ac unit be upgraded to a heatpump configuration (1 replies)
  243. AC Compressor on, Inside air doesn't work, heat works (1 replies)
  244. Furnace air conditioner (1 replies)
  245. Bryant furnace won't ignite (1 replies)
  246. Why does the heating-cooling system only work if the thermostat is set on 75 degrees? (0 replies)
  247. What causes high pressure in ac unit? (1 replies)
  248. I would like to design control room (0 replies)
  249. How to reset noma thermostat? (1 replies)
  250. No cool air (1 replies)