HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

I have a 3and half ton air temp package unit heat pump.

Customer Question
I have a 3and...

I have a 3and half ton air temp package unit heat pump. Indicator light blink twice. What's the problem

Contractor's Assistant: Did you double-check the thermostat's settings? And what about the filters?

Yes. Change the thermostat and did the same thing

Contractor's Assistant: Do you plan on doing the work yourself?

Yes. The 2 blinks means pressure switch high. How do you fix the problem?

Contractor's Assistant: Anything else we should know to help you best?

That's it.

Submitted: 7 months ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 1 minute by:
12/5/2017
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 7 months ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,118
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified

Hello,

did this happen during heating or cooling?

Billy

Ask Your Own HVAC Question
Customer reply replied 7 months ago
Heat
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 7 months ago

Thank you,

Now many things can cause this but the basics are circulation blower not working, filter plugged, anything that restricts air flow.

Also if the ac was overcharged during summer it can cause this...there are other items but these are most common...is the circulation fan running and filter/coil clean?

Ask Your Own HVAC Question
Customer reply replied 7 months ago
What if the fan is not on the right speed
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 7 months ago

That also...too slow fan speed mimics a plugged filter and decreases air across coil. Also some of the newer filters are too dense for proper air flow.

It can be things as easy as whats described...or as bad as a expansion valve for heat. How old is this installation?

Ask Your Own HVAC Question
Customer reply replied 7 months ago
6months
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 7 months ago

ok, then even the duct could be too small. Its like having a water pump that can pump 5 gallons a minute and a hose that can only transfer 3 gallons a minute.

Was the unit sized for the job or upsized from a previous?

Ask Your Own HVAC Question
Customer reply replied 7 months ago
Change out and went back with the same size unit
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 7 months ago

Thank you.

And is there good airflow through the duct work?

Ask Your Own HVAC Question
Customer reply replied 7 months ago
It runs about a minute and cuts off
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 7 months ago

How did it run for cooling?

Ask Your Own HVAC Question
Customer reply replied 7 months ago
Ran well. No problem
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 7 months ago

Have you had the installer make any blower changes so the work is done under warranty?

Ask Your Own HVAC Question
Customer reply replied 7 months ago
No thinks goodnight
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 7 months ago

If you have any other questions just let me know. If only 6 months old I would have installer make any changes so warranty remains.

Have a good evening

Billy

Ask Your Own HVAC Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a hvac technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask BillyHvac Your Own Question
BillyHvac
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,118
23,118 Satisfied Customers
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics

BillyHvac is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Phil

Phil

Mechanical Engineer

7,426 satisfied customers

Retired HVAC/ Electrical & Boiler contractor. Industrial

Rick Mather

Rick Mather

HVAC Technician

3,133 satisfied customers

35 years experience, HVAC

Matthew

Matthew

HVAC Technician

2,014 satisfied customers

14 years experience in the HVAC field of service, installation, Manual J & D calculations

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

1,019 satisfied customers

I have been an HVAC/R mechanic/technician for 30+ years.

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Rick Ridley

Rick Ridley

UK Heating Engineer

871 satisfied customers

Retired But have had 30 years on the tools, Ex CORGI

Tom

Tom

HVAC Technician

770 satisfied customers

16+yrs HVAC/R service. Residential Commerical Industrial

< Previous | Next >

Related HVAC Questions
Where is reset button on york 4 ton heat pump. If I can.
Don't think so, just replace the circuit board on outside unit… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
23,118 satisfied customers
Heating problem with my package AC/Heat unit. It is 20 years
Heating problem with my package AC/Heat unit. It is 20 years old, 2 ton in 3 bed room house, Freon is perfect, heat strips work perfect but when it cools down outside to 40 andbelow, all unit blows ou… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I have a heat pump split system and its not cooling, filters
I have a heat pump split system and its not cooling … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I'm not getting 24 v coming from my board to my contactor. i
I'm not getting 24 v coming from my board to my contactor. … read more
Kcrand36
Kcrand36
Technician/Owner
Vocational, Technical or Trade School
72 satisfied customers
My airease combo 2.5 ton unit is not working I came home no
My airease combo 2.5 ton unit is not working I came home no power at the thermostat I I pulled the fuse box out replaced the big fuses put back in an got nothing so I pulled off panel an see I have a … read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
23,118 satisfied customers
I have a ruud achiever 90 plus. Blower works on manual but
I have a ruud achiever 90 plus. Blower works on manual but will not fire up or stay on when I click over to the heat button on thermostat. Both green lights are on 1) power 2) ok. The unit worked last… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
23,118 satisfied customers
my Trane 4 ton 16 year old gas pack does not ignite about half
my Trane 4 ton 16 year old gas pack does not ignite about half the time. Everyone I get to check it out says they can't diagnose or fix when it is working fine when they come. I need to know what the … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I have a KG6RA 072C 16B, the blower runs but the gas burners
I have a KG6RA 072C 16B, the blower runs but the gas burners don't ignite. Also the A/C works, compressor shuts off but the blower does not shut off when the temp reaches the thermostat setting. The c… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
23,118 satisfied customers
Our 17 yr old 5 ton Trane heat pump went out and had to be
Our 17 yr old 5 ton Trane heat pump went out and had to be replaced. (Outside unit only) The compressor went out. We were told by the tech.that the new unit was the same size, but more efficient with … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
i have a 2 stage trane package heat pump the 1st stage compressor
i have a 2 stage trane package heat pump the 1st stage compressor is not coming on but the second stage is. there is power from the thermostat to the control board but not to the contactor. the other … read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
23,118 satisfied customers
Hello Everyone! I have a Consolidated Industries Quatro
Hello Everyone! I have a Consolidated Industries Quatro Model MBA 060 NH2RX Serial No. XXXXXXXXX installed horizontally in the crawl space of my home. It was manufactured in 1999, and according to the… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
23,118 satisfied customers
I have a York heat pump, built in the 80s that worked fine
I have a York heat pump, built in the 80's that worked fine in A/C mode all summer. In the winter heating season the outside unit was covered in ice and the thermostat in the house had a blinking red … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I have a Trane 5 ton a/c unit for the living area of the house.
I have a Trane 5 ton a/c unit for the living area of the house. On hot days the compressor shuts off and the a/c blows hot. The fan on the condensor unit is running but the compressor isn't. after abo… read more
Bart Jay
Bart Jay
Vocational, Technical or Trade Scho
596 satisfied customers
2/15/2010 Had the following problem with a 2 month old Nutone
2/15/2010 Had the following problem with a 2 month old Nutone 3 ton heat pump. Outside temp 32 degreesF. 1. 05:00 HP & AH had been running for several hours, house and thermostat were 69 degrees. Usua… read more
Richard
Richard
District Technical Manager
Vocational, Technical or Trade Scho
1,416 satisfied customers
My janitrol gmp075-3 just went out. The blower works but does
My janitrol gmp075-3 just went out. The blower works but does not light. Same thing happened 2 weeks ago and a technician came out and said all he did was get "air out of the system" and no parts were… read more
ComfortZone
ComfortZone
Associate Degree
485 satisfied customers
my gas furnace just stopped working so the temp is 63, brrr.
my gas furnace just stopped working so the temp is 63, brrr. I have changed the batteries in the thermostat as it said I needed to replace them. Everything is back in place and furnace will not turn o… read more
Bill
Bill
High School or GED
318 satisfied customers
i have a duncane brand direct vent forced air furnace that
i have a duncane brand direct vent forced air furnace that has stopped trying to work (heat) no matter how high you turn the thermostat. the green light on the Honeywell SV9520H 8042 SmartValve repeat… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
12/08/09 I had a new 254hpa5 15 seer & fv4bn heat pump & fan
12/08/09 I had a new 254hpa5 15 seer & fv4bn heat pump & fan coil installed.. fan runs for hours to get temp up 1 degree. Replaced thermostat (tp-phr).. checked gages on air handler added puron (twice… read more
HVACguy
HVACguy
Vocational, Technical or Trade Scho
18 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x