Hello,
I had a tech come out and say my control board was broken. They were going to charge me $800 so I decided to do it myself. I have a couple of questions.
I have a Janitrol GMP100-3 and am replacing the board with an ICM280 furnace control module.
First question -- The instructions say to "Remove existing HSI module. Note: Do not damage the nylon standoffs." What is the HSI module? I know HSI stands for heat surface ignitor (the element that ignites the flame), but what is the module on the board it speaks about?
Second question -- This new board changes out the red and common blue wires that run to the transformer with ones that go into a 9-pin plug. The common blue currently plugs into a pin labeled "COM" (along with a white wire that runs to the AC) The problem is is that there is no corresponding COM pin on the new board for the AC wire to plug on to. Where do I put this. Should I piggy-back it on to the new common blue wire that will run into the transformer?
Any help is much appreciated!
Thanks,
Matt
I had a tech come out and say my control board was broken. They were going to charge me $800 so I decided to do it myself. I have a couple of questions.
I have a Janitrol GMP100-3 and am replacing the board with an ICM280 furnace control module.
First question -- The instructions say to "Remove existing HSI module. Note: Do not damage the nylon standoffs." What is the HSI module? I know HSI stands for heat surface ignitor (the element that ignites the flame), but what is the module on the board it speaks about?
Second question -- This new board changes out the red and common blue wires that run to the transformer with ones that go into a 9-pin plug. The common blue currently plugs into a pin labeled "COM" (along with a white wire that runs to the AC) The problem is is that there is no corresponding COM pin on the new board for the AC wire to plug on to. Where do I put this. Should I piggy-back it on to the new common blue wire that will run into the transformer?
Any help is much appreciated!
Thanks,
Matt