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 Billy Your Own Question
Billy
Billy, Technician
Category: Pool and Spa
Satisfied Customers: 22109
Experience:  Licensed in Hydronics and Boilers
12672042
Type Your Pool and Spa Question Here...
Billy is online now
A new question is answered every 9 seconds

I have a pentair mastertemp 400k and as soon as I turn it on

Customer Question

I have a pentair mastertemp 400k and as soon as I turn it on it the service heater light come on. I opened up the control panel and the led light was blinking one time which means an air flow problem. Do you know what I can do to fix this?
Submitted: 10 months ago.
Category: Pool and Spa
Expert:  Billy replied 10 months ago.

I am very sorry your question has not been picked up yet.

I just logged on and found you had not been assisted.

Please let me know if you still need help and I will do my best. Please do not "Rate" as we have not worked toward an answer yet.

If you would like to proceed let me know by replying. Once again use reply..not "rate".

Customer: replied 10 months ago.
i would still like help
Expert:  Billy replied 10 months ago.

ok, first of all is the combustion fan running when unit is started?

Customer: replied 10 months ago.
No nothing comes on at all
Expert:  Billy replied 10 months ago.

that is the issue then....the fan must run first...then it closes an air switch...see if the exhaust an motor turns...see if it has power or is hot when it is turned on.

Customer: replied 10 months ago.
I will take a look at it this afternoon when I get home and let you know.
Expert:  Billy replied 10 months ago.

Just respond when you have more info

Customer: replied 10 months ago.
I just got a chance to look at it and the motor is getting power and the fan is turning
Expert:  Billy replied 10 months ago.

see page 35 HERE

Tell me if the air switch on page 35 is closing when fan runs

Related Pool and Spa Questions