How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Phil Your Own Question
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

Dunkirk dkvlt-100, two years old - System currently on standby,

Customer Question

Dunkirk dkvlt-100, two years old - System currently on standby, 3 zone system, all thermostats read about 5 degrees below set temp. For second time in a month no heat error A05, GV relay error. First time it happened, hit reset, system resumed normal operation. This time reset does nothing, except error message gone, message went to standby. Turned system on and off, hit reset, nothing...
Submitted: 1 year ago.
Category: HVAC
Expert:  Rick replied 1 year ago.
There is a troubleshooting flow chart in the manual if you want to trouble shoot this. Do you have the manual?
Expert:  Rick replied 1 year ago.
You'll need an ohm meter to perform the necessary tests
Expert:  Gaztech replied 1 year ago.
Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue.If my initial response doesn’t answer your question then let me know and we can continue our conversation.NOTE: I can only get paid for assisting you if you click FINISHED and RATE ANSWER after you are satisfied with answer.Are you ready?
Expert:  Rick replied 1 year ago.
Let me know if you need the manual or help with troubleshooting