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  1. needing advice about career goals
  2. one of our customers that owns rentals tried to use a hack and learned his lesson
  3. Reusing existing R22 line set to second floor air conditioning coil
  4. Grounding flexible gas connector?
  5. Transformer secondary fuse blows
  6. new carrier 1.5 ton install ?
  7. No heat furnace
  8. Trane unit size
  9. Voice command Thermostat
  10. 410A Sub Cooling
  11. TempStar HeatPump 410a
  12. condensor cleaner debat
  13. Is Dry Bulb temp and ambient the same thing
  14. Apartment work
  15. P1 on code instead of co on amana
  16. Residental ac issues low side low high side ok
  17. Condenser suction line get cold when turn on then hot
  18. Optimizer?
  19. How to locate hard to find restriction in a split system
  20. Student needs help! (Ladder Schematic Diagram)
  21. compressors and reversing valves are always malfunctioning
  22. High Head Pressure.
  23. How near is close enough
  24. Problem I came across today
  25. charging by superheat or subcooling
  26. Trouble finding a leak
  27. Transformer fuse blowing out
  28. Package unit with ecm issues
  29. Coleman furnace sequencer
  30. tec mate pro tester
  31. Chargeing trouble
  32. Baxi HT 1.330 boiling
  33. heat pump
  34. No suction normal head pressures
  35. Tear resistant Linesets?
  36. No charging chart
  37. TXV or Fixed Orifice
  38. American Standard RTU package Start capacitor with resistor
  39. wiring diagram resources
  40. what to look for when trying to find a job
  41. bryant evolution hp low pressure trip on new install
  42. I thought it was only an urban legend...
  43. heil quaker
  44. gas furnace headaches
  45. Schematic & Charging Procedures for Trane
  46. Removing filter drier properly
  47. Is anyone selling appliance-branded equipment, specifically made by Nordyne?
  48. evap coil leak
  49. Another leak check!
  50. Fan motor & back EMP
  51. Nti Ti150 boiler headache
  52. The Right Way To Install A Condensate Drain
  53. GFI
  54. Cut lines and braize vs. loosening flare nut
  55. Unusual foam appears when removing gauges from liquid line?
  56. Age old debate
  57. Bad Capacitors
  58. Suction line filter/drier
  59. Thermostat Problem
  60. cooling capacity in mini splits
  61. Restriction
  62. Low head, possible compressor failing
  63. pressure switches
  64. compressor pumping characteristics
  65. Can someone explain this on a vacuum reading
  66. No. Condensate. Trap. If. Coil. Is. Located. On. The. Positive. Side. Of the. Blower
  67. part #
  68. Sight glass TXV
  69. Causes of coils freezing over
  70. leak test with a dye, yes or no
  71. Distance of dryer vent from condenser
  72. Restricted R410a evap piston
  73. insulation
  74. Goodman refrig. leaks
  75. Fan blade stuck
  76. Condenser Fan Replacement
  77. Boilers.
  78. VFD compressors
  79. Had to overcharge a system to get it cooling
  80. Heat pump issue
  81. Poll about brands for all members
  82. r22 condenser with r410 evaporator
  83. Gibson 3 Ton 410A - Are times Changing?
  84. Miller MCEF-17h heat pump
  85. saving refer w/o service valves technique
  86. Vacuum not holding
  87. To Orifice... Or not to Orifice
  88. High head on start up
  89. Charging issue
  90. Need Trane Service Facts
  91. Need your advice
  92. Weak fan motor
  93. How long did it take you to become a lead installer?
  94. How much oil must reside in a scroll?
  95. control board issues
  96. Old Whirlpool Wedge cond.unit
  97. evap leak.
  98. Duct board vs. sheet metal
  99. Anyone using a Tablet?
  100. Robinair Vacuum Pump
  101. 3 ton Rheem
  102. Filter dryer placement
  103. Carrier Blower Curve
  104. Trane coil
  105. 400 high side , 70 low
  106. Temperzone Ducted Air Conditioner cutting out on HP
  107. trane ductless
  108. Flex for the last 5 ft
  109. Help with mitzu dual evap heat pump
  110. health hazzards of hvac work
  111. Air flow situation
  112. air distribution? or undersized unit?
  113. Possible Broken Robinair Cooltech Vacuum Pump
  114. Blunder!
  115. Pressure and ICE Superheat R22 Fixed
  116. Do I need to add refrigerant oil after a system purge
  117. HIGH SC & SH
  118. Weird plumbing issue.
  119. Lennox c33 liquid line stub
  120. 3, supply ducts not connected
  121. What killed the motor long shot haha
  122. Flush
  123. Odd start up readings on a dual fuel??
  124. Stumped
  125. How do you get 7.7 uf in a 5 uF capacitor?
  126. Condenser won't shut down
  127. Fake contractor busted
  128. Low Voltage Issues
  129. Compressor electrical failure
  130. Liquid line superheat
  131. Honeywell Zone System Question
  132. multimeter safety
  133. Liquid line undersized or bad TXV
  134. smh @ heat pumps
  135. run cap question
  136. Drain leaking advice
  137. Erratic Armstrong HP
  138. Condenser fan motor over amping, new motor over amping too!
  139. Freezing Coil
  140. Changed out condenser fan.
  141. Need parts list for carrier fan coil
  142. 410a pressure
  143. Really Trane!
  144. Builders Grade Equipment?
  145. HSPF Ratings/ Operational Temperature and Operational Costs
  146. Cap tube question
  147. Heat pump system question
  148. r22
  149. Trane condenser coil leak and temporary bypass?
  150. TXV Question
  151. Bad cap
  152. high superheat and high subcooling
  153. Superheat slide charging chart cards
  154. New construction
  155. Defrost Board Question
  156. Super Seal Advaced
  157. Can you help ID this very old Heat Controller Condenser
  158. Tech Support
  159. SEER rating, the marketing gibberish?
  160. Green slime? Never seen it, heard of it
  161. Trying to understand this Nexia stuff and American Standard 950 stat.
  162. Help with a Trane xl15i heat pump please
  163. Start assist kit necessary?
  164. R22 and R410A efficiency compared in nearly identical systems. R22 appears superior
  165. What's the problem with...
  166. Replacing Mitsubishi evap for mini split
  167. Vacuum pump oil
  168. draft motor coming on
  169. 410a ductless mini split operating pressures
  170. Romex 14/3 awg as ductless communication cable
  171. Need a second opinion
  172. Lineset UV Protection
  173. Wonder what did this
  174. hw recirc loop
  175. ruud cube unit
  176. Arcoaire
  177. poor air flow
  178. why should we Run nitrogen while brazing
  179. Relocating A/C unit.
  180. Compressor testing good, but won't stay running
  181. Unlevel OD unit
  182. Honeywell gas valve question...
  183. Trane control board
  184. G2 Exam question about grille sizing and air openings
  185. 50 degree coil?
  186. Cutting duct wrap for round and rectangular duct. Estimating how much to cut?
  187. Wrong size lineset / airflow issue / system too small
  188. New contractor needs help with change outs
  189. 410a problems
  190. Non-adjustable txv problems
  191. New A/C split on older furnace
  192. Hydronics-Expansion Tank distance from Spirovent
  193. Extra time spent on new system pays off
  194. Move return air grill from bottom of floor to ceiling?
  195. When to replace a contactor on a PM call?
  196. Carrier....38HQ127300
  197. Maker of Nylog exposes the secret behind snake oil gimmick scam
  198. superheat and subcooling
  199. Does this Suction Line temp seem right...the numbers work
  200. York affinity wifi problem
  201. appion g5 drier filter kit.
  202. Time for a new digital multimeter - any suggestions???
  203. Uncased "A" coil
  204. Carrier fan ciol 618ANF042
  205. Any Ideas On This One
  206. target superheat with txv system
  207. understanding Wetbulb temperature
  208. friday the 13th yep
  209. heatpump bad txv or restriction
  210. American Standard package heat pump multiple leaks
  211. Amana circuit board
  212. inside vs out side temp.
  213. cleaning evap coils
  214. air from registers
  215. H/V CHARGING ISSUE
  216. Haier minisplit parts source?
  217. Identifying possible refrigerant mix?
  218. Does checking the compression ratio work
  219. Low loss fittings, ball valve, and 410 what do?
  220. my liquid line is sweting
  221. Comfortmaker 2 stage heat pump CCH660
  222. R22 carrier split system Need help troubleshooting
  223. New 2015 IMC and IRC Mechanical Code Revisions
  224. lg mini split system sequence of operation
  225. Air conditioning unit start up problem
  226. Nordyne condenser coil leaking see pic. Aluminum? Braze?
  227. Leak Detector Report is Available from NathansHVAC
  228. 5 ton AH with 2-1/2 ton HP
  229. York tech info
  230. Trane Indoor Coil Replacement Help
  231. Ruud 16 seer split heat pump and high humidity
  232. 14 Arrested in Unlicensed Activity Sting in Florida
  233. Whats wrong with the ACCA manual j speedsheet???
  234. Discontinued Amanda control board
  235. vacuum on new 30lb reclaim cylinder
  236. Need A second Opinion On this one!
  237. Heil High Pressure Switch
  238. 3 ton two stage ducane A/C with armstrong variable air handler
  239. mix refrigerants
  240. compressor going into a vacuum?
  241. Lets Learn about FAN Blades and how it goes on correctly
  242. Sysem Pumping Down
  243. Expansion Valve Distribution Tubing Valve Repair/Replacement
  244. TXV vs. orifice
  245. This call has me stumped
  246. Issues with a High efficiency heat pump..Not sure what could be happening?
  247. High superheat why ?
  248. ISCEON MO99
  249. Amana inductor coil
  250. Trane support