Hey gang. I am fearing that my control board has gone bad and before I take the plunge into an expensive replacement, I wanted to get some advice from smarter people than me on what else I could troubleshoot.
-Would anyone by chance have a schematic for the board that shows logic flow?
-I already have the Pentair Troubleshooting flow chart but it's not yielding anything but "replace board".
I should preface this with the fact that back in May my heat exchanger died. After 4 diffferent orders for parts that were cancelled, I finally lucked out on a wait list and received a new kit 474059. Spent last weekend cleaning and replacing the coil along with all of the corresponding components in the kit.
I don't believe this error is related to the coil (gaskets, ignitor, insluation, etc..) All parts in kit (except manifold by-pass valve kit) were installed.
So. I had a new Thermistor that I bought last Fall because I can recall the E01 coming up before we winterized and figured I would attack the problem in the Spring.
-Swapped Thermistors -still the same error.
-Took my multimeter out and both thermistors test OK - new one at 11K Ohms, installed one at 9.4K Ohms.
-Tested the wires from the thermistor to the board for continuity -checks out OK.
Note: The Temp Fault resistor on the board has a brown spot on it (possible burn) but that resistor which is marked as 2K Ohms also checks out- reading just below 2K.... See PIC
-- Could it be that even if the resistor measures the right resistance, it could still be faulty?
--Is this resistor related to the Thermistor or the High Limit switch?
On boot-up, I get "Service Heater" light on panel w E01 and then the display shows 126 after the self-checks.
Looking at the LEDs on the board, I have 2 that are Lit:
-LED 7 -which is at the power input -that must be normal.
-LED 11 - which is not marked but it's lit. Is this normal operation?
-NONE of the other circuit LEDs are lit: PS/HLS/AFS/AGS/SFS.
I don't see any other burn marks or other signs on the board that might indicate a blown components. See PIC
Is there anything else I can check or troubleshoot board or system wise before I buy a new board?
Thanks in advance!! Marc
-Would anyone by chance have a schematic for the board that shows logic flow?
-I already have the Pentair Troubleshooting flow chart but it's not yielding anything but "replace board".
I should preface this with the fact that back in May my heat exchanger died. After 4 diffferent orders for parts that were cancelled, I finally lucked out on a wait list and received a new kit 474059. Spent last weekend cleaning and replacing the coil along with all of the corresponding components in the kit.
I don't believe this error is related to the coil (gaskets, ignitor, insluation, etc..) All parts in kit (except manifold by-pass valve kit) were installed.
So. I had a new Thermistor that I bought last Fall because I can recall the E01 coming up before we winterized and figured I would attack the problem in the Spring.
-Swapped Thermistors -still the same error.
-Took my multimeter out and both thermistors test OK - new one at 11K Ohms, installed one at 9.4K Ohms.
-Tested the wires from the thermistor to the board for continuity -checks out OK.
Note: The Temp Fault resistor on the board has a brown spot on it (possible burn) but that resistor which is marked as 2K Ohms also checks out- reading just below 2K.... See PIC
-- Could it be that even if the resistor measures the right resistance, it could still be faulty?
--Is this resistor related to the Thermistor or the High Limit switch?
On boot-up, I get "Service Heater" light on panel w E01 and then the display shows 126 after the self-checks.
Looking at the LEDs on the board, I have 2 that are Lit:
-LED 7 -which is at the power input -that must be normal.
-LED 11 - which is not marked but it's lit. Is this normal operation?
-NONE of the other circuit LEDs are lit: PS/HLS/AFS/AGS/SFS.
I don't see any other burn marks or other signs on the board that might indicate a blown components. See PIC
Is there anything else I can check or troubleshoot board or system wise before I buy a new board?
Thanks in advance!! Marc