"Goodman nenty two problems " , posted Mon 21 Jan 08:07

My furnace will begin running the exhaust fan, then the igniter will light but the gas never comes on to light the burners. I can feel the relay on the control board trip (don't know if it is really c ... read more

inthedirt

"Ritetemp 6022 " , posted Sat 19 Jan 21:57:

I just bought a Ritetemp 6022 thermostat and need a little help. I have a heat pump with Aux heat. When I was removing my old thermostat there was a jumper from W2 to E. While connecting the new on ... read more

fish1

"Setting the Honeywell Chronotherm III Thermos " , posted Fri 18 Jan 20:59

I recently bought a house that has this thermostat but I have no instructions on how to set it, can anyone help. The thermostat is set on 46 degrees & I need more heat. The furnace is electric with ... read more

tmohcc

"Honeywell Chronotherm III " , posted Wed 16 Jan 14:50

This unit has worked for ten years. Now it will not allow me to set the return temperature above 60. The batteries are OK and the times for each setting are correct. Is there a way to fix this? I ... read more

Frank36

"air mixture " , posted Wed 16 Jan 13:40

Hi, Does anyone know how to adjust the air mixture on an oil burning furnace?thanks ... read more

jonsie

"***********Job Openings********** " , posted Tue 15 Jan 15:55

We have job openings with Johnson Controls in AZ, NV, and CA. If interested, please send resume to:matthew.r.warzel@jci.com ... read more

warz65

"unlock a Honeywell Therm " , posted Tue 15 Jan 08:35

How do I unlock a Honeywell TB7220u1012 Thermostat? ... read more

gduser

"bard unit not heating " , posted Tue 8 Jan 21:10:

I have a bard heat pump, it will cool but will not go into heating. I can toggle the valve when jumpered, but when I switch to heating the unit stays in cooling. Any help? ... read more

caliman

"Carrier Eheat runs all the time-81deg at home " , posted Sun 6 Jan 14:55

I have a Carrier model 38YCC018311 heat pump. This heats/cools part of my house. I got up this morning and it was 81 Deg in the area it heats, the ambient outside was maybe 45 overnight. The compr ... read more

Wehuntz

"york heatpump with honeywell 8000 thermostat " , posted Sat 5 Jan 00:22

Need help pleaseHave a fairly new York heatpump.Also with it, a HONEYWELL 8000 (8321) thermostat.Under upper right corner, a red light has started blinking.Earlier tonight it blinked 3 ... read more

28bamagirl

"bad heatexchanger " , posted Fri 4 Jan 16:54

is it possiable to install a heatexchanger in upside down in a roof top unit ... read more

jvegas

"brazing a/c joints ???? " , posted Fri 4 Jan 16:35

I have been wondering about the topic of brazing a/c line set joints. From what I hear from different installers there is a variety of opinions on which solder and method is best. Also doing a low flo ... read more

stiz

"rheem blower motor problems " , posted Fri 4 Jan 12:45

Hello, I have a Rheem electric air handler Model#UBHA-14J10SFCA.I have replaced the blower motor,capacitor, and the blower relay in the unit.And have double checked all wiring.The relay works I ca ... read more

mikecard

"New Site: HvacrTalk.com " , posted Fri 4 Jan 01:00

go now, have more than one account, check it out!HvacrTalk.com ... read more

HvacKool

"Toshiba VFSX 2037 UPI " , posted Mon 31 Dec 16:24

Does anybody have a manual for a Toshiba VFSX 2037 UPI. ... read more

marchvac

"Honeywell Chronotherm III furnace " , posted Sat 29 Dec 21:55

i have a message on my thermostat panel that says the temp i am holding my house at with a -AC next to it. i have never seen this before, nor does the inside of the panel reference this as something ... read more

sydneyabby

"furnance kicks on and off " , posted Thu 27 Dec 16:08

My furnance heats and cools very well, however it has a hard time starting up. It kicks on and off before it starts to run, what could the problem be ... read more

dakid1

"Trane vs. Carrier " , posted Thu 20 Dec 16:12

We're replacing an HVAC system at our facility. One vendor bid a 15-ton Trane air handler and heat pump; the other vendor bid a 15-ton Carrier air handler and heat pump. The vendor that bid the Tran ... read more

ProjectManager

"Changed thermostat " , posted Tue 18 Dec 12:09

I have installed a new RTH7500 on a ruud heat pump system, I labled that wires and connected everything, the A/C will work but the heat will not work. The fan will automaticly start and stop. ... read more

Fatzo757

"Question on Chilled Water A/C " , posted Tue 18 Dec 11:42

Hello everyone...I really hope someone can help.I have a small business and I have access to a 30 ton chilled water A/C for my computer room. Now I realize this is overkill right now, ... read more

pbrunnen

"Furnace won't stay running " , posted Sat 15 Dec 22:50

I have a Lennox gas furnace model G21Q3-60. It has been doing this off and on for about a year and now is doing it about ever other time it runs.Problem is that when you go down to find out w ... read more

cindysue

"Hot Water Air Handler " , posted Fri 14 Dec 23:53

Hi,I have a tankless hot water heater and am considering replacing my aging gas furnace with a hot water air handler, "driven" by my hot water from my tankless. When I had my tankless install ... read more

euclid777

"Lennox LF24, no ignition, new pressure valve " , posted Thu 13 Dec 18:39

I have a Lennox LF24 heater in my shop which quit the other day. It will power on and run the exhaust fan for about 45 seconds, then power down. Flashed a "3" trouble code indicating pressure valve. R ... read more

kronoss65

"My heater is not turning on " , posted Tue 11 Dec 18:53

I have an older combination Rheem unit on my roof. When I set my thermostat to the heating mode, it does not turn on. I opened the sealed unit to discover it has an electronic ignition system. I turne ... read more

johnnyc

"Rudd Tandem unit " , posted Tue 11 Dec 17:24

Hey Guy's,I am new to this site, So hey all!I am also relativly new to HVAC, Kinda just stumbled into it at work. And am Now a "Tech" What a joke! Well enough about what I dont know.read more

Dasean

"Centrex CTAR60GW " , posted Tue 11 Dec 04:23

I've been trying to find technical info on Centrex split air conditioning unit. It was made in China & sold in Australia but nobody supports it anymore. Any leads, please. Thanks ... read more

vivo

"Locked Keyboard on Honeywell T8132C1003 " , posted Mon 10 Dec 22:59

We have the Honeywell T8132C1003 programmable thermostat. The other day all keys stopped responding and the display remained frozen at a certain temperature, though the clock continued to run (but a ... read more

joelkranz

"Please Help!!! Reqiring Thermostat " , posted Sun 9 Dec 21:41

to start off i have very little HVAC knowledge. I am replacing my Honeywell t87f thermostat with a ritetemp 6022 programmable thermostat. I have followed all direction and wired it up however, i am no ... read more

TomGibson

"welding defect " , posted Sat 8 Dec 11:37

we are setting up fire fighting system. We have a main loop DN150. When we take branch for sprinker system from main loop such as DN50, we have a problem in the branch. Have can we keep branch straigh ... read more

okanokantr

"goodman home furnace will not ignite " , posted Sat 8 Dec 08:23

I have a goodman furnace in my home, its small, and will start the blower, but will shut off. If i flip the power switch a few times it will try to come on but will not, then finally will come on and ... read more

rwal

"condensate drain on roof top problem " , posted Sat 8 Dec 05:58

I have a job on a commerrcial building that has five package units on the roof, the roof is about to get redone by a roofing company. The problem is they had the city come out to look at the job befor ... read more

oc40jr

"Lennox Water/Snow Inside " , posted Tue 4 Dec 09:38

We recently had service done on both of our Lennox Rooftop units. After the service was complete they both ran for about 2 days. We had a strong east wind with very wet snow/rain. Both units accumu ... read more

trytokeepwarm

"blower motors keep burning out " , posted Mon 3 Dec 10:43

I have a school with aaf-HermanNelson unit ventilators(floor type) in all the classrooms. They use hot water for heat and chilled water to cool in summer. The unit vents are about 4 years old and I ha ... read more

dizzy46

"Collector Diameter? " , posted Wed 28 Nov 10:40

I have a collector and it has two pump on it. 1st one is main(pipe is Ø65), second one is standby(pipe is Ø65) . In addition, it has Ø25 connection for exp. tank. How can I calculate righ collector di ... read more

okanokantr

"Help Please " , posted Fri 23 Nov 17:09

Im working on a goodman 15 ton gas pack.During heating the unit will turn on inducer fan then flame,but as soon as the contactor fan is energized the board shuts down. The problem is its a new board.R ... read more

Darken4

"PLEASE HELP! " , posted Fri 23 Nov 16:18

I HAVE AN OLDER FURNACE/AC UNIT THAT I AM TRYING TO WIRE TO A LUX PROGRAMMABLE THERMOSTAT. MY EX HOOKED UP THE LAST ONE AND IN ORDER TO TURN THE A/C ON YOU HAD TO TURN IT UP TO 90. NEEDLESS TO SAY THA ... read more

updegal

"Capacitors--Start and Run " , posted Thu 22 Nov 15:42

What is the Rule on Varying MFD and Voltage. I have heard +-10% on MFD .Why do we have 370 Volt and 440 Volt Start Capacitors--What makes each one unique--Could we have say a 400 --What decides-37 ... read more

hvactech80

"Thermostat Control in China " , posted Mon 19 Nov 21:59:

We have a 2 bedroom apartment with a large dual fan Haier heating/air conditioning unit on the back porch. Beijing provides hot water heat from November 15 to the spring no matter what the temperature ... read more

mac88

"carrier rooftop " , posted Wed 14 Nov 18:16

What would be causing the flame rollout switch to keep tripping. Also a very bad odor coming from flue box that burns the eyes ... read more

mtcorey

"Back Pressure regulators " , posted Tue 13 Nov 23:36

Need help setting up a mastrbilt freezer 404a sys. with a bpr and the pressures it's supposed to run. ... read more

tazman1120