If the PS error code light is lit that means the heater shut off on a flow related issue and you’ll have to figure out how to keep the heater in standby mode before your timer kills the power to the pump. Getting an error code of r13. Hi Nigel If the timer cuts power to both there should be no reason they don’t come back on together when the timer kicks in again especially if that’s how it performed previously. When I physically turn the power switch to ‘off”, then turn the switch back to “on” position the heater calibrates and then works perfectly…until the timer cuts the power again at the time of day set on the timer. Thanks for the response. We have 4 STA-RITE Max-E-Therm SR400NA manuals available for free PDF download: Operation & Installation Manual, Owner's Manual . If that checks out ok you could have a bad thermistor. The IntelliConnect is not too expensive really compared to a run of the mill timer. Checked the lights on the back of PWA and AFS light is on….what does this indicate? If only the up temp button works that would indicate either a bad membrane and or a bad board. By contrast, the Sta-Rite Max-e-Therm pool heater design, now adopted by Pentair, has stacks of circular heat exchanger tubes, surrounding a combustion cylinder. Not to mention the cost of replacement parts. When I put the system in spa mode the heater turns on (blower only) I hear a click which I assume is the igniter trying to fire. It is the SPA Valve that rotates to activate the flow to heater. I have a Max-E-Therm 400 Sta Rite pool heater. Hi Joe. LED 11 and LED 3/SFS lights are lit red on the membrane. R13 is the revision of the control board and is normal to see when the heater re-boots. When I put the system in spa mode the heater turns on (blower only) I hear a click which I assume is the igniter trying to fire. I agree that the timer is most likely NOT the issue – it’s such a simple timer. All lights are on including temp, but burner/heat does not come in. It turns on initially to bring the spa water from ambient to desired temperature – no problem here. The Sta-Rite Max-E-Therm is also available as a Heavy-duty unit equipped with a cupro-nickel heat exchanger which stands up to harsher applications, such as low pH, high flow or heavy use, such as you would find in a health club spa or rental property. My Max E Therm 400 Heater (1 yr old) displays a message on the LED temp display. Service heater light is on and stays on. If no error codes are lit and you have the E01 display you could have a bad connection to the thermistor and or a bad thermistor, bad PC board and or bad connection from J5 to the board. AD1 Try a power cycle of the heater first Kevin to see if that corrects things. I don't know what would cause this, power glitch? Heater is not on and won’t come on. If so does the heater eventually shut down and show a service heater or service system light? also what is PWA. What i was thinking is that if the timer kills the power to the heater while the main burner is operating it could be leaving it in svc heater mode. It was working yesterday and just stopped. Removed cover as you suggested and noticed that the “SFS” was lit red on board. Turn over the membrane pad and remove the blue ribbon going to the touchpad control board. Last Reply on May 4th, 2020 by Nigel. Nigel, All of a sudden the heater needs to power off and then on to operate.l correctly. Nigel, I was getting high pressure reading on my filter too maybe from backed up pressure. Manuals and User Guides for STA-RITE Max-E-Therm SR400NA. Just set the temperature for your desired temperature and the heater will stop heating at that temperature in spa mode. This message cycles through the following values: AD0 AD1 SF0 SF1. Sometimes it can help a Technician working on the heater to determine if a board in his service vehicle is compatible with yours if yours requires replacement. Wires were marked perfectly BUT what i forgot to do when changing out sensors was to MARK them on the old manifold body (dumb a__). Definitely classification Odd. I took the shell of the heater and blew/vacuumed out all the debris and it did not help much. Temperature buttons as well as spa, pool, and heater off buttons not working. … Postal Code: … that pinpoint heater or system conditions in case there’s a need for troubleshooting. Pentair EasyTouch is a good one. If all else fails contact our Service Support Desk to book a diagnostic and repair of your Sta-rite Maxetherm pool heater. 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