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forget the indoor temp if you are looking for evap load in the heat mode, the condenser is now the evap. Have found in years past on some units we would cycle the outdoor fan in the heat mode by...

Why I like the digital gauges all the imformation is built in

sometimes alignment of the puller can be a problem, on 1/2" shafts put a copper coupling on the shaft of the motor, sure makes it easier

If it has a multi tap transformer make sure it is on the right tap. Have seen where they are taped for 230 volt and there is 208 being supplied. Will make a difference when the contactors pull in. ...

crankcase heater will keep the liquid refrigerant out of the crankcase but will do nothing to keep large amounts of refrigerant from slugging that has accumulated in the coil or in the lineset. I...

Recently picked one up at Home Depot called the whistler for under a hundred. First day out found 2 dirty evap coils going thru the high limit, of furnaces paid for itself right then and there.

Don't forget checking the temp drop accross the indoor coil, I have seen units that have the correct subcooling / superheat but still have a low temp drop.

Sounds as tho there is a Lovejoy coupling. Get shaft size and you should be able to find a replacement. The tough part is getting the old one to move, sanding and lots of wd 40. May have to pull...

install a icm voltage monitor and set it up for auto rest

Keep a set of gear wrenches to 9/16" in bag along with set of Dewalt magnetic nut setter to 1/2" for my impack driver. Very seldom have to use sockets any more. Keep an extension for the nut...

You are right it is a filter drier, had a customer that had 3 compressor failures and the company doing the work thought it was a muffler and never changed it. It was a split York heat pump figured...

You said this was a heat pump outdoor, would not use a solenoid with a heat pump with out some specical consideration for the heating cycle. Is there a suction acculator installed between the...

Had similar problem, Rheem unit with 4 compressors set up for 2 stages, thermostat 150 ft run. When contactors pulled in they chattered, especially if calling for both stages, low voltage dropped to...

is the coil clean?

Guys all getting their hours, but the residential change out market is slow. Figured there were two reasons. Last year we had the $1500.00 tax credit and alot of units got changed out, and people...

They still make a good product. As far as inventory they all have their issues. I've waited as much as six months for a Carrier condenser coil for a package unit that was a week old. Locally we...

Most contractors do not carry the off brands because in the overall cost of the job there is normally not a huge difference in equipment cost. I would venture to say there is less than 5% difference...

Take a look at Auto Zone by Wattmaster, have used it for years and has proven to be extremely reliable and user friendly. With a basic system you can do everything you have described. In addition...

pull the entire blower assembly out and change it outside the unit,

had one one time installers installed txv didn't take out the flow rater, low suction poor split unit was charged by subcooling to specs

Ditto- we use them for temps/humidity, another set for volts/amps have had them for 6 or 7 years still working

Ladders are used every day by most of our people, commerical guys are on roofs alot.

Look into a damper system, increasing the size of the unit or duct will not solve the problem as the unit will follow the commands of the thermostat which I assume is located downstairs. Remember...