Hi. My Harman Accentra insert worked last year. When I tried to turn it on for the first time this year, neither the feed motor nor the ingitor came on. I pulled out the pressure switch and when i create a small negative pressure at the input I can hear the contacts close and then open again when the pressure equalizes (so I think the pressure switch is working).
Another thing I noticed is that in test mode (with the pressure switch bypassed), air blows out the front of the stove (which I think indicates that the distribution blower is good), but the motor that has looks like it has a fan mounted on both sides of it that sits right beside the exhaust duct on the stove (the combustion/exhaust motor?) doesn't come on. Yes, it does not come on in test mode. I suspect that this motor is not working, but I would like to be more confident in my diagnosis before I spend $130 for a new one.
Can anyone please help me understand the following:
1. Should the motor that is mounted via a thumbscrew plate to the exhaust duct (combustion motor?) run when the stove is in test mode?
2. What creates the pressure difference for the stove to operate? I suspect that the motor that is mounted via thumbscrews to the exhaust duct is what creates the pressure difference, but I'm not sure.
3. Any other helpful hints or details of operation of the stove would be greatly appreciated.
4. My Accentra insert must be an older model because the parts breakdown and location is pretty different from the documents that Harman has on their website. Can anyone shed any light on this, please?
Thanks a million.
Another thing I noticed is that in test mode (with the pressure switch bypassed), air blows out the front of the stove (which I think indicates that the distribution blower is good), but the motor that has looks like it has a fan mounted on both sides of it that sits right beside the exhaust duct on the stove (the combustion/exhaust motor?) doesn't come on. Yes, it does not come on in test mode. I suspect that this motor is not working, but I would like to be more confident in my diagnosis before I spend $130 for a new one.
Can anyone please help me understand the following:
1. Should the motor that is mounted via a thumbscrew plate to the exhaust duct (combustion motor?) run when the stove is in test mode?
2. What creates the pressure difference for the stove to operate? I suspect that the motor that is mounted via thumbscrews to the exhaust duct is what creates the pressure difference, but I'm not sure.
3. Any other helpful hints or details of operation of the stove would be greatly appreciated.
4. My Accentra insert must be an older model because the parts breakdown and location is pretty different from the documents that Harman has on their website. Can anyone shed any light on this, please?
Thanks a million.
