HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Have Harmon P68 Status light 3 blinks. Replaced the ESP.

Customer Question
Have Harmon P68...

Have Harmon P68 Status light 3 blinks. Replaced the ESP . Still get 3 blinks , stove won't ignite, or adjust feed rate . only works about half speed

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

5 days

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

If i can

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

Stove does not work properly. no adjustment controls work. Wont shut off.wont ignite ,

Submitted: 3 months ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 22 hours by:
4/1/2018
HVAC Technician: Iohn Keffer, HVAC Technician replied 3 months ago
Iohn Keffer
Iohn Keffer, HVAC Technician
Category: HVAC
Satisfied Customers: 73
Experience: Maintinances HVAC at Hainesville baptist church
Verified

Welcome to Just Answer, my name is*****’m reviewing your question now, and will post back with your reply momentarily."

If my initial response doesn’t answer your question then let me know and we can continue our conversation.

A 3 blink error codes means that the control board has not detected the ESP (Exhaust Sensing Probe) at start up or that it lost communication with it while the unit was running.

  • Verify that the ESP probe is clean by removing it and looking at it, clean if necessary. It should be a silver colored metal.
  • If you replace it, make sure you replace it with the proper one for your unit. There are two versions; a probe with black wires and a probe with red wires, replace accordingly.
  • If the probe itself looks “bent” it’s probably broken.
  • Before replacing the probe verify that the probe itself in actually plugged into the controller and the contacts on the controller are “clean”
  • On front side of each controller there is a red rectangle box with a series of 8 micro-switches called DIP switches. The controller must be removed from the unit to access them. DIP switches allow multiple stoves to use the same controller but run different programs according to the stove’s required functions. The #5 DIP switch must be set to “OFF’ or down for ESP probes with black wires and set to “ON” for DIP switches with red wires. 3 blink error codes can be caused by installing the improper colored wired ESP with the wrong DIP selection.

For my service, your 5-star rating at this time is most welcome. If you need more help, please let me know so l can continue to assist you.

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 Iohn Keffer Your Own Question
Iohn Keffer
Iohn Keffer
Iohn Keffer, HVAC Technician
Category: HVAC
Satisfied Customers: 73
73 Satisfied Customers
Experience: Maintinances HVAC at Hainesville baptist church

Iohn Keffer 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 P61 Harman pellet stove and the light blinks 2
I have a P61 Harman pellet stove and the light blinks 2 times I been to the dealer and they said it was the mirco switch so I got one and put it in still does the same things so the stove wont shut do… read more
David Bowden
David Bowden
Owner
1,177 satisfied customers
I can't seem to find the correct fan speed and feed rate
I can't seem to find the correct fan speed and feed rate using wood pellets in my Bixby max fire pellet stove. The door glass gets black in about four hours of burning. Can you help? … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
We are having trouble regulating the heat out put of our
We are having trouble regulating the heat out put of our pellet stove. It is running us out of the house! It is a 25-PDVC/55-SHP10. Can a thermostat be wired into this unit. The stove is set at 1-1. … read more
Kcrand36
Kcrand36
Technician/Owner
Vocational, Technical or Trade School
72 satisfied customers
I have a Burnham boiler with a honeywell s8610m continuous
I have a Burnham boiler with a honeywell s8610m continuous retry controller. It ignites fine, burns for between 5 and 25 seconds, and then cycles off. Then goes through the ignition process again. Thi… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I have a Harman P68 pellet stove. The igniter gets hot but
I have a Harman P68 pellet stove. The igniter gets hot but not hot enough to light the pellets. It works fine on manual but will not start on automatic. I say it works fine on manual but that is after… read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,942 satisfied customers
Quadrafire santa fe got up today, no fire, have pellets,
quadrafire santa fe got up today, no fire, have pellets, cleaned, chimney is clear. stove sounds like it starting, auger will not turn, heater for pot does come on,. red light on inside is on and it b… read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,942 satisfied customers
I have a harman pellet stove insert. The other day something
I have a harman pellet stove insert. The other day something shorted out in the stove when I went to scrape the burn pot. The control board started smoking. I replaced the control board, wiring harnes… read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
Heatilator CAB50. Stove worked great all last winter. Two recent
Heatilator CAB50. Stove worked great all last winter. Two recent times the stove started per set thermostat, pellets begin to feed pellets ignite and continue to feed, as soon as the room fan kicks on… read more
Jerry
Jerry
Plumber
High School or GED
1,456 satisfied customers
Have a harmon p68 pellet stove The power and status lights
Have a harmon p68 pellet stove The power and status lights come on as does the combustion blower. However the distribution blower, feed motor and igniter do not work. If we apply a manual vacuum by dr… read more
Brian
Brian
Plumbing & Heating Engineer
131 satisfied customers
I have a customer who has a HARMAN PB105 pellet boiler and
I have a customer who has a HARMAN PB105 pellet boiler and here is my problem; The status blink tells me that the ESP probe is malfunctioning so I have changed it twice but the system will still not w… read more
Marc
Marc
Master plumber, oil burner technician
Vocational, Technical or Trade Scho
1,590 satisfied customers
I have a Harman P68. I ame experiencing the following problem:Upon
I have a Harman P68. I ame experiencing the following problem: Upon starting the stove, everything works perfectly. After about 1/2 hour, the feeder stops feeding. The light for the feeder on the cont… read more
Brian
Brian
Master Electrician / Contractor
Vocational, Technical or Trade Scho
40 satisfied customers
I have a Harmon P68 and cannot reset 3 Blinks on the status
I have a Harmon P68 and cannot reset 3 Blinks on the status light. I tried unplugging to reset with no result.I just completely cleaned the whole stove and chimney pipes. Baffled? Any help to reset wo… read more
V12Tech
V12Tech
252 satisfied customers
I have a p-68 pellet stove. it wont run in the room temp.
I have a p-68 pellet stove. it won't run in the room temp. mode. I got a new esp probe but that not it. When you put it test everything comes on but the igniter, but when you put it in stove temp. it … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
I bought a Harman Stove DVC-500 direct vent coal stoker in
I bought a Harman Stove DVC-500 direct vent coal stoker in Sept 2004 and never had a problem with it until this past week. I DO NOT GET ANY FLASHIN LIGHT so I do not have a blink status. I have had a … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I have a Harmon P68 Pellet stove. The fire went out and just
I have a Harmon P68 Pellet stove. The fire went out and just the combustion blower stayed on. The combustion light is on as well as the power and status light. after the 36 minute time span the status… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I own a whiffield Advantage pellet stove -year 1995 It is
I own a whiffield Advantage pellet stove -year 1995 It is on a thermostat and when the thermostat is kicked up to call for the speed it is set on it starts to chug down and will die. Itis running on l… read more
Jerry
Jerry
Plumber
High School or GED
1,456 satisfied customers
I have a Goodman GDP075-3 furnace. Was working fine until
I have a Goodman GDP075-3 furnace. Was working fine until about an hour ago. The status light was blinking (single blink). I turned the unit off, then reset the circuit breaker. The status light staye… read more
M Oglesby
M Oglesby
Vocational, Technical or Trade Scho
2,038 satisfied customers
Hi, I have a harmon 25th anniversary stove that is about 4
Hi, I have a harmon 25th anniversary stove that is about 4 years old. I use Instant Heat pellets for three years now. This year the stove is consuming a lot more pellets than in previous years and is … read more
Al-Moderator
Al-Moderator
High School or GED
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