mobilehomerepair.com

Hi,
Hope you can help me. Heater is a around a 1991 Intertherm electric model #FEH-020HA-04.
Problem: Low heat temp. Heater Goes through all cycles fine.
Did some tests with meter.
transformer-240v on line side. around 26v on load side
sequencer no call for heat...
h1/h2=0vac
h3/h4=0vac
all m terminals to ground=120vac
m1/m2=240vac
m3/m4=240vac
m5/m6=240vac
m7/m8=240vac
sequencer with call for heat
h1/h2 and h3/h4= around 26vac
m1/m2,m3/m4=0vac
m5/m6 and m7/m8=240vac
this is where I think the problem is. This side of the sequencer is connected to the bottom 2 heat coils the are not coming on. the top 2 coils are on and are connected to the m1/m2 side on the sequencer.
With call for heat top 2 coils read 240vac across terminals
bottom 2 coils read 0 vac
I hope this info helps. So do I need a new sequencer? If so which one.
Also should I replace the 2 Limit Switches? Which part numbers would I need to order?

Thanks for the help
Bob

Hi Bob,

Sequencer # 901076

(2) Limit Switches # 626409


The sequencer is bad and you have the above two limits. All can be seen

and ordered through PayPal from this page :

http://www.mobilehomerepair.com/NordyneElec.html


Shipping is $8.00 .


Thanks,
Robert

Thanks Robert. I was hoping it would be the 01-0843 Sequencer Just curious why is the # 901076
so much more $ then the 01-0843? Anyway thanks for the help and will order. Not a big rush yet still warm in North Carolina.

Bob

Hi Bob,

That's the price difference the manufacturer puts on them. Usually older means more $$$ due to shelf time.


Thanks,
Robert

Thanks again Robert. I have 2 different limit switches. #6262610 and #6262600. Would the limit switch part number you gave me still replace both switches?

Thanks
Bob

Hi Bob,

Yes, the limits you have are not for your furnace.


Thanks,
Robert