Heater will not fire toubleshooting code reads PL1, what is wrong

I had same issue yesterday in the field. The sensor was bad in my case. After replacement of the Stack flu sensor my stack temp was only reading 80 degrees, a clear indication that the board needed to be replaced as well.
Replaced board and the heater fired fine and the stack temp reading was normal, 300 degrees.
To obtain a stack temp, after the heater fires hold down the pool or spa button until the temp appears in the display. It will time out after 10-15 seconds.

First verify the socket in the fixing heater is not loose then clear that error form service mode

I don't have the manual from this camera. But when I have this problem I look on ifixit dot com (to prevent me from reading this stupid code I won't place the name) There you find lots of help, when toy want to repair a modern electronic thing, including camera's

I am having the exact same problem. Same codes flashing. If you solved it let me know. I had just replaced the thermistor and Stack flu sensor and it was running fine. Previously it would read 126 and not fire, so I changed those 2 items and it ran fine for the last month. When I go out tonight 2/24/22 and the panel is lit up and reading a code. I shut everything off at the circuit. Flip it all back on and it gives all those codes. It will fire and start heating when I switch valves for proper pressure but doesn't let you adjust temp on the panel and just reads a code and won't shut off. Any help in troubleshooting. Thanks.

Trouble Code: P0032

O2 (B1 S1) Heater Circuit High

Possible Causes:


O2 heater element is damaged or the heater has failed.O2 heater control circuit is open or it is shorted to power.O2 heater ground circuit is open.PCM has failed .Hi Suzanne,here's a link to your firing order,your oxygen sensor in cylinder one,which is the exhaust manifold is bad.Need more help,I'm here.I took a guess at your engine size,if I'm wrong let me know and I will send you the right one.

The exhaust motor starts first andthen closes a small air switch (pressure switch)...if blocked pipe or tube to switch unit will not fire. You can also look at the light on the circuit board for blinks...this will tell you what is wrong. Read bottom blower door for fault codes

Hello! This is a Sony Software error...

Google; Sony Ericsson Update Service and download the the software update for a PL1.

Guru.............saailer


I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

you may have a bad pressure switch.if you are getting flow thru the heater and this code is comeing on there are only two reasons.No flow or bad switch.

No, that does not seem correct. If all you did was replace the heat exchanger, then tried to start it up, how could everything go wrong. Unless there was another issue with the heater. Not too many people change out the exchanger, unless corrosion has caused a leak there What you CAN try to do is reset the heater. To do this, turn off your heater first-at the toggle switch inside the right hand side door, then turn off the circuit breaker to the heater, wait about 5 to 10 minutes, then reverse the order. Circuit breaker then heater, if you have the digital display, you will see flashing codes, this is the computer resetting, then you should see the normal display. Try starting the heater again. If it still will not fire, let me know if you receive an error code. Also, check to see if the temp the heater is reading is close to that of the actual water temp.