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Tom Lech / LECH AIR CONDITIONING @UCqCDCZV_xvdo6byxwNgus1g@youtube.com

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HVAC tools, tips, training, procedures long forgotten and ne


04:02
300 W power electric AC pressure operating in a low load condition
02:10
Quest 335 High-Efficiency dehumidifier.EXCELLENT TECH CUSTOMER SUPPORT 👍
06:46
DULE AC STACKED CONDENSERS. Excellent foam airtight seals no gaps allowed.
03:35
AC PRO Pressure Temperature Guide i’m trying hard to find a match that works ?
01:46
R134 coupling tool becomes a one-way high-pressure valve. ***(FAILURE )***
05:09
Fieldpiece MICRON GAUGE SOFTWARE CONNECTION AND SET UP 
02:21
Harbor freight battery powered vacuum pump warranty replacement
01:47
LONG Screws can puncture AC condenser 
03:52
Coil Corrosion Caused by Plugged Roof Gutter .  cedar would singles oak leaves Pineneedles.. acidic
02:22
COIL CORROSION JUST STARTED BAD THIS YEAR , WHAT CAUSED IT ???🤔
01:41
HARBOR FRIGHT VACUUM PUMP DIED AFTER 1 MONTH OF USE
01:50
AC refrigerant oil missing out of compressor. Where did it all go? There’s no oil leak. 
00:19
BMW brake pads cost as much as a used car. M2 (dust free) special pads
01:37
Double oil charge even triple oil charge HOW ? 🤔 I explained written description below.
01:32
AC aftermarket condenser comparison to OEM original condenser.
02:53
STOP VACUUM LEAKS AT YOH AC SERVICE CUPPINGS NYLOG
00:46
BMW AC compressor bolts super lightweight aluminum. Come with a hefty price tag to.
00:38
8 series BMW 
01:10
Stratus refrigerant leak detector makes easy work of finding refrigerant leaks
01:30
1970 280 SL unnecessarily ridiculously too difficult to attach to the high / low side fittings 
08:58
280 SL Mercedes high side low side fittings,High side fitting don’t even try to connect
01:41
AC CLUTCH COIL WIRE EXPOSED. Somebody cut and splice wire.
01:28
 1000g vapor refrigerant forced into the low side with the engine off special start up procedures 
03:52
LOW SIDE VAPOR REFRIGERANT CHARGE ONLY.  slow method compared to high side liquid..
01:12
Second nitrogen, purge drops, moisture content, flattens out the curve you can see with your eyes 
05:05
Performing nitrogen sweep on this old Mercedes only one hose
06:09
AC service port one hour extra labor to connect and disconnect. This is ridiculous. 
02:16
LOW ON REFRIGERANT. Worked good and cool weather.. But in over 100°F compressor stopped working
04:18
AC not working that’s all I was told. Missing information, somebody looked at it. Clutch gap rubbing
01:04
400 PSI plus on the high side AC pressure because of thermal fluid fan clutch needs replaced 
01:47
Intake and exhaust valves 186,000 miles 2012 Prius C what do they look like?
02:42
Prius EGR COOLER SHINY CLEAN 🧼 AFTER 186,000 miles. Just change your oil all the time..
10:58
YOU ADD MORE REFRIGERANT & HIGH SIDE GOES DOWN ?🤔
02:46
73 PLEATS IN THIS MERV 16 FILTER. 10 plates in the cheap Merv 10 filter. 
03:22
MERV 16 filters has 73 PLEATS can be less air restrictive than Merv 10 ?🤔 with 10 PLEATS
01:50
Cheap air filter, compared to more expensive air filter. Expensive is the better buy.
00:58
Title 24 test and balance airflow on ductwork
07:56
HIGH FLOW DEEP VACUUM HOSE WITH HIGH PREFORMANCE 1/4” FITTINGS
03:16
Technician did not know there was a oil drain reservoir plug in the center of this compressor
01:31
LEAKING Receiver dryer line fitting attachment 
01:14
12 cylinder 1939. Vehicle in excellent condition.
01:25
182,000 miles original front brake pads. Just replaced.. rotors don’t get hot.
11:17
117°F heat being sucked into the evaporator from outside under the hood
01:38
RECOVERY OF EVERY LAST GRAM OF REFRIGERANT OUT OF YOUR EMPTY JUGS 💰💸💵
01:20
A/C poor performance on my own personal car 🤦‍♂️ I forgot to change my cabin filter.
03:25
AC condenser this is the best aftermarket condenser I’ve ever seen, but I don’t have any name
01:56
Hey Siri, not working on mobile glass guys old van. Let’s get them working.
02:43
MORE REFRIGERANT = LOWER HIGH SIDE PRESSURE ? 🤔
00:30
HARD SHUTOFF EXPANSION VALVES SOMETIMES HOLD HIGH PRESSURE FOR A LONG TIME ?🤔
03:01
HOT 🥵 AIR 127°F SHOOTING FORWARD IN FRONT OF CONDENSER OUT OF THE BUMPER? 😲 not good
03:08
KIA LOW ON REFRIGERANT. 54°F out the dash. Later video full same temperature ?🤔
01:02
INFICON DETEK STRatus ,  Evaporator leak electronic refrigerant leak detector
01:41
190 psi on high side on a 90°F day. There’s a lot of technicians who say it should be 250 psi. 
01:37
NAVAC 4 CYLINDER TO THE RESCUE !!!🛟 These units are difficult to recover refrigerant out of quickly
01:13
Lots of corrosion on brand new tractor trailer that has two high side fittings no low side fitting
01:31
ENGINE OVERHEATS SHUTS OFF AIR CONDITIONING 
06:28
Cabin filter, cause air to be too cold out the dash with 100°F interior dirty filter, 
01:47
Low side psi fairly high and the high side psi fairly low normal for this operating condition
05:33
CLUTCH GAP YOU CAN HEAR THE EXCESSIVE CLEARANCE
01:20
Quick high pressure nitrogen decay test. (“ I did not stabilize the pressure before testing”)