"cell air filters " , posted Wed 18 Jul 11:15

I was just wondering if anybody knows if cell airguard filters can be cleaned, or do i need to purchase new one , they are very pricey. It appears that i need to change or clean on a yearly cycle. ... read more

dot

"4152-1-40 B " , posted Thu 12 Jul 16:03

Rooftop unit....Anyone know what manufacturer that model # belongs to?Thanks for the help! ... read more

HVACGIRL

"Water Leaks Under Heating Unit When AC Is On " , posted Wed 11 Jul 06:31

I hve a split unit-AC Unit on outside/Heating unit on inside. Yesterday I noticed that there was water coming out from under my heating unit, lots of water. After the AC was turned off, the water ca ... read more

greyeyes40

"Mitsubishi Mr Slim " , posted Mon 9 Jul 22:50

I have a mistsubishi Mr Slim split system heat pump. It's worked fine for 2 years, but all of a sudden it drips from the vents in the indoor unit after it's been running for awhile. I checked the dr ... read more

jeffcar8

"AC Repair question " , posted Sun 8 Jul 19:57:

Sorry, I realize I posted this in commercial. I've moved it to residential. Could a moderator just delete this when you see it? Thanks and sorry for the inconvenience. ... read more

jfergie

"foam " , posted Sun 8 Jul 01:21

30 ton sight glass 1/2 foam near com poor cool any info would be great thanks ... read more

bjnjmt

"Vacuum Pump - Flushing Agents " , posted Thu 5 Jul 18:18

Can anyone help with flushing agents and vacuum pumps.We have flushed out a system with flushing agent following a compressor burnout.We are now having trouble achieving a vacuum on th ... read more

rocketrod71

"Danfoss Maneurope MT 64 " , posted Thu 5 Jul 07:15

Why my new compressor Danfoss Maneurop MT 64 cut off itself when in the middle of running while i top up the Freon R 22.Does this compressor have the built in Overload?It still can't running while i c ... read more

wizardlim98

"up date on pool heat pump " , posted Tue 3 Jul 15:43

Well this is one that is not seen often. Had some time and wentback to my pool pump heater. I posted this awhile back. Thoughtit had a lockout but not in the unit. Every time hydro went out read more

kalining

"What does SSU stand for for an SSU switch???? " , posted Sat 30 Jun 12:56

Just curious, because no one seems to know around here. ... read more

Nspektrgajit

"specs for carrier weather maker " , posted Wed 27 Jun 18:12

I have a Carrier Weather Maker 10ton unit. Cap tubes are clogged up..the unit has two compressors and share the same evaporator. The compressor that is clogged up is Carlyle hermetic recep. mod. # J ... read more

yahawahay

"Carrier metering device??? " , posted Tue 26 Jun 16:41

what kind of metering device is used in the carriers that go directly into evap manifold. ive been noticing more and more carrier units with high head pressures that powerwashing wont take care of. dr ... read more

SMB

"wrong trane sensor " , posted Mon 25 Jun 14:48

I have a 7 ton trane package gas/electric rooftop unit with two stage cooling on an management system. the sensor isis a trane baysenso14c. I wondering if this sensor can be used because i do not get ... read more

dot

"Need help with my 2 stage heil air conditione " , posted Sat 23 Jun 20:21

Hi i a store and i had installed a 2 stage cooling 7 1/2 package unit. it seems that only one compressor runs i was wondering if you could tell me the low voltage wiring how its supposed to go. it alr ... read more

s430lex

"Wiring Issue: White Rogers -> LuxPro " , posted Sat 23 Jun 18:48

I bought a house and decided to replace the T-stat (I wanted a stat that could have the fan come on at predetermined times to cycle the air)The old stat is a White Rodgers 1F90W-51. Here is a ... read more

TedT

"ClimateMaster-Water Source Heat Pumps? " , posted Fri 22 Jun 23:55

Does anyone have any experience with ClimateMaster water source heat pumps. We live in a Apartment style condo, and they are being used to provide heating /cooling to the spaces. We have been told t ... read more

HVAC Ninja

"Problem Wiring Goodman Ac " , posted Fri 15 Jun 18:21

I'm having a problem wiring up the goodman furnace and AC Unit. From the thermostat to the handy box in the unit, I spliced inside the handy box color to color, i.e. white, red, green and blue. From ... read more

mchlrub

"Manuals for Carrier Systems " , posted Wed 13 Jun 12:35

We just bought an older building with some Carriers that need a little work.2 of the model numbers are:40BA-009-30040YR-060-300Does anyone have manuals for these? ... read more

bryan1234

"Williamson " , posted Sun 10 Jun 21:54

Anyone know where I can get a Williamson manual? I believe they were based out of Cincinnati. I just want to serive my furnace/heat pump/hvac. The furnace has a humidifier on it.Please adv ... read more

coldwaterdoug

"REPLACE SIMPLE COMFORT 2200 " , posted Sat 9 Jun 21:29

I am replacing my SimpleComfort 2200 (which has an "E" connection that my air-handler/condensor wiring was connected to. It is a Black colored wire). I'm replacing it with a RiteTemp 8050c for Heat ... read more

golfer4life

"chattering contactor " , posted Sat 9 Jun 18:23

I have a walk in freezer condensing unit that has a chattering contactor,i have run a test on everything suppling it with power and unable to locate the problem.To be sure i did not have a bad contact ... read more

RAprice

"Walk-in Freezer " , posted Fri 8 Jun 11:17

The Norlake freezer at my store keeps dripping water at the opening where cold air is blowing out. It only drips once or twice a day. A pile of ice is formed on the floor. How can I fix this myself? ... read more

tiger0047

"air direction " , posted Wed 6 Jun 18:07

Gentlemen,I have a Trane XE900 heat pump with issues...When in the cool position, everything works fine but the direction of the air flow. I get hot air from the inside ducts and cold air from the ... read more

no-clue

"Need product data for York RTU D1CG " , posted Tue 5 Jun 15:59

I am looking for technical info on a York RTU Model D1CG240N24046ECA...does any one know where to find it? I haven't found anything on their website or other sites. ... read more

T1andT2

"will it work " , posted Mon 4 Jun 21:36

can i run a jumper wire from my E terminal to my W terminal on my heat pump t stat to control gas heat? ... read more

lkol

"Thermostat Wiring " , posted Sat 2 Jun 10:29

I have a lennox roof top unit that has six wires - R,W1,W2,Y1,Y2,G - and had the thermostat replaced - but the guy who replaced it got a thermostat that only has R,W,Y,G connections so he connected th ... read more

ekadiri

"BDP co. " , posted Thu 31 May 23:35

I inherited maintenance on a building with 4 Roof top AC units. The only ID I can find is Manafactured by BDP co. and model 579DPW060080ADCR. Who makes these and what size are they? Is there a place o ... read more

sjo

"BDP co. " , posted Thu 31 May 23:29

... read more

sjo

"PASSWORD NEEDED! " , posted Thu 31 May 16:27

I am looking for the "Technician" password for a McQuay Microtech II controller. I have the "User" and "Owner" passwords. Thank you for your help. ... read more

buddyrd

"i need a service manual for a york unit " , posted Mon 28 May 06:31

Hello I need a service manual for a york packaged, roomtop unit (rth 10k e0) as the client i am working for has lost his, & has a error code 12 on his unit which is intermittant, I suspect the hp swit ... read more

darren benge

"back seeding and front seeding help... " , posted Mon 21 May 22:46

i did residential install for about a year and a half and then i switched over to commercial service. completely green at it but im doing alot better now after about 4 months, im going to school in t ... read more

mactherabbit

"Question about down sizing nozzel in furnace " , posted Mon 21 May 21:18

I just was given an almost brand new Carrier 58CMA 120 oil furnace with a Becket AFG burner that came with .75-70B nozzel rated at .85gph and rated at 120,000 btus input. This is the smallest size noz ... read more

chas036

"SMARDT oil-free chillers " , posted Fri 18 May 12:35

Has anyone have any know of these unit? I have replace a couple of chiller and the archtect has spec.ed SMARDT oil-free centrifigal chillers.Now this is a 150 chiller to the tune of a million doll ... read more

password

"HELP with trane a/c condencer coil cleaning " , posted Wed 16 May 18:57:

Ok these trane unit are getting to me with no room to really clmb into these unit's one coil vertacal and one at a 45 deg angle and only 10 inches between them at the bottom ( where you have to crawl ... read more

ltumaintanceman

"freezer unit " , posted Sun 13 May 20:17

I have a freezer that usually keeps things cold around 10 degrees. It is running up to around 45 degrees now. I put my gauges on the high and low side and I do not get a reading on my pressure. It has ... read more

woods1500

"CHROMETHERM III PROBLEMS " , posted Fri 11 May 23:03

i HAVE A cHROMOTHERM iii THAT DOES NOT REGISTER THE CORRECT TEMP ON THE HOUSE THEREFORE THE UNIT WILL NOT KICK ON. THE UNIT REQUESTED ME TO REPLACE THE BATTERIES AND AFTER THAT IT STILL SHOWED THE HO ... read more

docS

"help old 2 stage york rooftop " , posted Thu 10 May 20:34

I just got an awseome matinence job but now i have to fix the york 2 stage rooftop. Stage 2 cooling never runs but stage 1 or y1 always runs. nothing came on for the stage 2 no condensor fan nothing ... read more

plockmesh

"fan runs, not compressor " , posted Thu 10 May 20:18

Hey guys, when I turn my stat on cool the indoor fan kicks on but not the compressor and outdoor fan. When I run the unit in the test mode the compressor turns on along with the indoor fan and works f ... read more

woods1500

"Any Techs here from San Diego,CA? " , posted Thu 10 May 19:33

Any Techs here from San Diego,CA? Just wondering because my company is hiring and we are in need of techs bad. Have more work than we can handle. We need more man power. Post back if more info wanted. ... read more

so_cal_tech

"Help " , posted Thu 3 May 00:35

Commerical system has extreme high suction, and low head. Twinned evap coils, single condenser, with 2 compressors. No funky noises. 120 psi on head, 1 degrees subcool, about 95-100 on suction, 66 ... read more

timothynd28