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
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
23932409
Type Your HVAC Question Here...
Phil is online now
A new question is answered every 9 seconds

The Robertshaw ignition control (SP715A) on my furnace (Central

Customer Question

The Robertshaw ignition control (SP715A) on my furnace (Central Envirnmental Systems,1988) failed in 2004. It was replaced by ignition control # XXXXX U. The new control began to fail ( refuses to re-ignite after going off) in Jan. 2008.

Why should my new control work properly for only 4 years? I thought Robertshaw was more reliable than that. I am 80 years old and on limited income and I can't afford repeated failures. Any help or suggestions you can offer would be greatly appreciated.
&nb sp; XXXXXXX
& nbsp; XXXXXXX
&nb sp; XXXXXXXXX
Submitted: 7 years ago.
Category: HVAC
Expert:  Kenton Guidry replied 7 years ago.
Do you have a spark ignition?
Customer: replied 7 years ago.
I assume that it is spark ignition because there is no pilot light
Expert:  Kenton Guidry replied 7 years ago.
It could be a hot surface igniter (glows hot).
Customer: replied 7 years ago.
In the first place, I have no idea what a "hot surface igniter". I am not a technician. But in the second place, and most importantly, why should two Robertshaw controls fail in such a short span? And by the way , this is a furnace , NOT a refrigerator.
Expert:  Kenton Guidry replied 7 years ago.
Why would you tell me that this is not a refrigerator?

Also, you do not know that your Robertshaw ignition module is the problem.

Expert:  Kenton Guidry replied 7 years ago.
Are you there?
Customer: replied 7 years ago.
I'm right by my computer .
Expert:  Kenton Guidry replied 7 years ago.
Can you tell me why you informed me that this is not a refrigerator?

Also, can you tell me how you know that your Robertshaw ignition controller is bad?
Customer: replied 7 years ago.

 

Question # XXXXX Because you are described as having a "refrigeration license"

Question # XXXXX when the first control started fail ( not re-igniting during the thermostatic cycaling), my furnace repair man said it was the ignition control and then replaced it with the # XXXXX U control. Which then started to fail in the winter of 2008 in the same way asthe first control.

Expert:  Kenton Guidry replied 7 years ago.
Technicians in the HVAC have a refrigeration license. HVAC stands for heating, ventilation, and air conditioning.

Air conditioners, and furnaces fall under that scope of work.

I am going to opt out.
Customer: replied 7 years ago.
I guess I'm just going buy an extra cord of fire wood. Thanks anyway.

Related HVAC Questions