MMHB-090ABHR-06 Will not fire up

[Chewman]

Thank you for this site!

I just spend some time reading past posts and I think I have it but want to double check with the expert's before laying down cash for parts.

I have the above model Furnace and it has worked for years just fine heating my detached garage until this fall. Normally I have the thermostat set at 48 and it comes on after sitting idle waiting all summer. This year no go. I cycled it a few times and still no go, I hear it do the cycle, but no heat.

Popping the cover I noticed that the Hot Surface Igniter 1018 flashes 3 times at me after a failed cycle. I looked through the peep-hole and didn't see anything glowing during a cycle. I opened up the furnace and pulled the burner out and everything looked OK. I check the electrical connections and everything looks tight and clean. When the furnace is running a start cycle I can smell gas if I hold the peep hole open.

3 flashes you have indicated in other posts is typically a bad ignitor or flame sensor which the no glow on a start signal would also indicate. It shouldn't be the gas valve if I can smell gas on the attempt to start. Am I thinking about this right?

Is there a way to test the ignitor or is it a just replace and see if it fires item?

Thanks for the help!

Chewman

[Robert]

Hi,

Follow wires from ignitor to plug connector, disconnect, place meter leads in furnace plug, set t-stat to call for heat, wait about a minute or so and see if you get a reading of 120vac.


IF you do and ignitor was not energizing, it is bad.

Let me know what it reads and I'll give ordering info if needed.


Thanks,
Robert

[Chewman]

Did the test you asked, and the plug has 120 volts to it!

What part do I need?
Chewman

[Robert]

Hi,

Ignitor # 902661A can be seen and ordered through Paypal

from right side of page here :

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



Thanks,
Robert

[Chewman]

Thanks Robert!

Just ordered the igniter. I will let ya know how it works out!

Thanks again for all the help!

Chewman

[Robert]

Hi,

You're very welcome, happy to help.


Take care and best wishes,
Robert

[Chewman]

Got the ingnitor yesterday, had it installed in about 15 minutes and had heat!

Thanks for the great help!

Chewman

[Robert]

You're very welcome, thanks for ordering with us.

Merry Christmas !!


Take care and best wishes,
Robert