HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

We have a relatively new lazer 30. it is shutting off with…

Customer Question
Hello! We have a...

Hello! We have a relatively new lazer 30. it is shutting off with an EE12 code displayed, every half hour. We have cleaned it to no avail. .We don't know what the "High Level Switch" is that has evidently been activated

Contractor's Assistant: I'll do all I can to help. How long have you been dealing with this?

Off & on for months, it seems to be chronic but not specific time line. it's running fine now, for at east another half hour. Wow! you're quick!

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

Well,... yea, I've torn down our lazer 56 completely so know the nuts and bolts. harder to dig into this smaller model, don't want to if I can avoid it.

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

Don't know, Figured it's a button sequence we're not familiar with. Not addressed in the manual. What does "High Limit" switch mean?

Contractor's Assistant: Just to clarify, what's the make and model of the appliance? And has it done this before?

It's a Lazer 30 Toyo

Submitted: 8 months ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 4 hours by:
11/20/2017
HVAC Technician: BillyHvac, Journeyman HVAC Tech replied 8 months ago
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,122
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified

Hello,

My name is Billy.

This code means the unit is basically overheating.

Whether it is a plugged rear filter, blower wheel, anything that restricts the air flow through the the unit.

It is rare, but possible you have a weak temp/limit switch that trips but I have never seen that yet. It is most always related to the motor, blower wheel or filter. Is the unit at least 4" from back wall?

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: 23,122
23,122 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
I have a 1500 sq.ft, brick ,single story. ceiling & walls
I have a 1500 sq.ft, brick ,single story. ceiling & walls are insulationed. l live in whiteville, N.C. what size hgt/ac, heat pump sys. would need for my home. a 1t , 2t, 3ton ? thank you,***** *****,… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have a Goodman heat pun and the 24 volt relay that holds
I have a Goodman heat pun and the 24 volt relay that holds contractor in pulls in and runs for sometime then drops out before house hits set point.... … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
Carrier unit tripping out contactor when high voltage
Carrier unit tripping out contactor when high voltage applied an condenser tries to start … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I have a question regarding a trane xl14i. Just yesterday
hi - i have a question regarding a trane xl14i JA: I'll do all I can to help. How long have you been dealing with this? Customer: just yesterday JA: Do you plan on doing the work yourself? Customer: y… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I have a furnace and my 3 amp fuse blew I changed it and I
I have a Bryant furnace and my 3 amp fuse blew I changed it and I blew the second fuse now I'm not getting and flashing from the led … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
Could a bad draft safeguard switch shutdown my furnace?
Could a bad draft safeguard switch shutdown my furnace? White corrosion is present on the switch cover. Furnace keeps shutting down after about 30 minutes. … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I have an ultra 105 that suddenly shows a 6 30 code. it
I have an ultra 105 that suddenly shows a 6 30 code. it ignites but then goes back to the 6 30. any ideas … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I am looking for a gaffer and sattler s 80 fdf replacement
I am looking for a gaffer and sattler s 80 fdf replacement part? … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I have a ruud that stop running when i put the heat on it
i have a ruud that stop running when i put the heat on it started blinking 5 times how can i fix it? … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I'm having a terrible time keeping my heat pump free of snow
Customer: Hi, my name is Lilah. I'm having a terrible time keeping my heat pump free of snow - it's too hard to get to it to uncover it at the moment (the snow is waist high). Wondering if I should ju… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
WE'RE AN HVAC CONTRACTOR. HAVE AN OLD HOUSE WITH 2 TURBOS.
WE'RE AN HVAC CONTRACTOR. HAVE AN OLD HOUSE WITH 2 TURBOS. THE SMALLER 60,000 HAS ISSUES. WE CHANGED THE PRESSURE SWITCH HOSE AND S86U MODULE AND IT WORKED FOR A WHILE. NOW THE INDUCER FAN RUNS BUT NO… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
Rick, have a RBI boiler that will not fire, there is demand
Rick, have a RBI boiler that will not fire, there is demand in the system. Hi limit light is on. Tried to reset but is hasn't tripped. This is the first time since last winter that the system will be … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I have a Teledyne Laars "energy efficient" mini-therm. It is
I have a Teledyne Laars "energy efficient" mini-therm. It is rated for 104k btu, and features a cracked heat exchanger. What do you recommend replacing it with for under slab, copper pipe, hydronic he… read more
Rick
Rick
Supervisor
24,233 satisfied customers
York Diamond 80 furnace the heat kicks on, the burners light,
York Diamond 80 furnace the heat kicks on, the burners light, then after a moment they turn off. The main blower never seems to kick in. The little red LED is just flashing a single flash over and ove… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
State Licensed Mechanical Contractor
23,122 satisfied customers
I have a Payne model PF1MNB048 and the air conditioner works
I have a Payne model PF1MNB048 and the air conditioner works and runs very well in the summer time, but when I switch the thermostat over to "Heat" the fan motor never comes on. Is the electric furnac… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
baxi / potterton Main 15 HE with a leak from the casing,
I have a baxi / potterton Main 15 HE with a leak from the casing, anybody online with experince of this? Plumber believes that as we currenlty have the boiler on 24 / 7 (got new born baby) the amount … read more
Patrick
Patrick
Bachelor\u0027s Degree
2,412 satisfied customers
hello, my furnace is not producing warm air and the fan does
hello, my furnace is not producing warm air and the fan does not turn on..........the unit clicks on......then off in about a 30 second effort and repeats this cycle about once per minute.......please… read more
M Oglesby
M Oglesby
Vocational, Technical or Trade Scho
2,038 satisfied customers
I am working on a Carrier 30 gxn air cooled screw chiller and
I am working on a Carrier 30 gxn air cooled screw chiller and need to replace one of the condensers. Do you know where I can find the service guide for this job? It is not located in the service lit.… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 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