Hello
I know this is an old thread but maybe someone will stumble across it and offer some help (especially “Waste†who seems knowledgeable about these heaters).
I have a Sta-Rite SR400LP pool heater (3 years old and only used once). The blower motor runs at full speed for 1-2 minutes and shuts off. The motor housing gets very hot and I assume the thermal device in the motor shuts it down. It will do this even if I disconnect F1 and F2 from the Ignition Control Module and jump them together. The interesting thing is that the motor runs constantly at a very slow speed regardless of whether the heater is turned on or off. With F1 and F2 disconnected from the Ignition Control Module (and not jumped) the motor still runs at very slow speed. If I disconnect the 12 pin plug, jump the blue and yellow wires from the motor and jump the red (L2) wire from the receptacle to the 12 pin plug the motor will run at the very slow speed. I’m guessing the motor is shot and that there is an internal short circuit that is allowing it to run even though it is only hooked up to L2 and not L1.
Speaking with PentAir support was not much help. They fixated on the ignition module being bad and didn’t seem to understand that by recreating the problem with F1 and F2 disconnected the motor was isolated from the ignition module.
I’m hoping for a reply from Waste since he has never had to replace a blower and maybe can suggest something else that may be causing this problem. If the problem is indeed a bad blower motor can I replace the blower unit without undue risk of blowing up the heater and burning down my house.
Thanks,
Gary
I know this is an old thread but maybe someone will stumble across it and offer some help (especially “Waste†who seems knowledgeable about these heaters).
I have a Sta-Rite SR400LP pool heater (3 years old and only used once). The blower motor runs at full speed for 1-2 minutes and shuts off. The motor housing gets very hot and I assume the thermal device in the motor shuts it down. It will do this even if I disconnect F1 and F2 from the Ignition Control Module and jump them together. The interesting thing is that the motor runs constantly at a very slow speed regardless of whether the heater is turned on or off. With F1 and F2 disconnected from the Ignition Control Module (and not jumped) the motor still runs at very slow speed. If I disconnect the 12 pin plug, jump the blue and yellow wires from the motor and jump the red (L2) wire from the receptacle to the 12 pin plug the motor will run at the very slow speed. I’m guessing the motor is shot and that there is an internal short circuit that is allowing it to run even though it is only hooked up to L2 and not L1.
Speaking with PentAir support was not much help. They fixated on the ignition module being bad and didn’t seem to understand that by recreating the problem with F1 and F2 disconnected the motor was isolated from the ignition module.
I’m hoping for a reply from Waste since he has never had to replace a blower and maybe can suggest something else that may be causing this problem. If the problem is indeed a bad blower motor can I replace the blower unit without undue risk of blowing up the heater and burning down my house.
Thanks,
Gary