Recent content by StevePr

The new ignitor arrived today. I installed the new ignitor and the heater now fires up. But I am wondering why the previous ignitor went bad. I installed a new one early last summer. The original ignitor lasted for a decade but the one that just died only lasted a few months. When I...

Ah.. Thanks for the link to the newer unit with instructions for adapting to my older Laars Lite 2 model. But... I just double-checked everything and now the igniter looks bad (very high resistance). I'm sure it read 80-90 ohms the other day but it is definitely not right now. So I am going...

Hmmm... the link above is for a different version of the Fenwal. This newer version had pins instead of blades for a few connectors and there is a merged IGN/FS connection. There is a post on this forum where someone else didn't have much luck converting to this version of the controller (Help...

Ok. Sounds like I need to fix or replace the Fenwal unit. I will pull out the Fenwal and take a look. Maybe it will be an easy fix. Or maybe I will have to buy a new one. I will report back.

Yes, this heater is wired to 120AC. If I had taken the picture from a different angle you would have seen the igniter connection going to the 120 connection instead of 240. And, yes, the link above does look like the correct manual.

120AC at L1/L2.

My older Laars Lite 2 heater fails to ignite. After reading this post ( Teledyne Laars heater troubleshooting ), I checked the following. The igniter resistance measures about 80ohms. When switching on the heater (temp control), the power to the igniter starts at 24AC, then drops to zero...